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The Hanna Instruments HI99151 is a durable, waterproof, and portable pH and temperature meter designed specifically for beer analysis. Automatic calibration is performed at one or two points with two sets of buffers. All calibration and measurement readings are automatically compensated for temperature variations. The HI99151 uses the FC214D titanium body, amplified pH electrode that offers numerous features that improve pH testing for beer analysis. The split-level LCD displays both pH and temperature readings, along with indicators for reading stability, battery percentage, and calibration instructions. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Portable pH Meters. Brand Hanna Instruments. SKU HA-HI99151. ID 28241
Medical & Lab Supplies
Bench pH Meter For Educational Use - HA-HI207
The HI207 is a basic, affordable pH benchtop meter that features automatic calibration to 1 or 2 points with a choice of two sets of pre-programmed buffers. All readings are automatically compensated for temperature variations from the supplied HI1291D two-in-one pH and temperature sensor. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Benchtop pH Meters. Brand Hanna Instruments. SKU HA-HI207-02. ID 28181
Medical & Lab Supplies
Benchtop pH Meter with 0.01 pH Resolution - HI2210
The HI2210 is a basic, affordable pH benchtop meter that features automatic calibration to 1 or 2 points with a choice of 5 pre-programmed buffers. All readings are automatically compensated for temperature variations from the supplied thermistor probe. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Benchtop pH Meters. Brand Hanna Instruments. SKU HA-HI2210. ID 28387
Medical & Lab Supplies
Benchtop pH/mV Meter with 0.01 Resolution - HI2211
The HI2211 is a basic, affordable pH/mV benchtop meter that features automatic calibration to 1 or 2 points with a choice of 5 pre-programmed buffers. All readings are automatically compensated for temperature variations from the supplied thermistor probe The meter has a large, easy-to-read LCD that displays pH or mV and temperature simultaneously. The HI2211 is supplied complete with a pH electrodes, temperature probe, calibration buffers, reference refill electrolyte, cleaning solutions, and a probe holder. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Benchtop pH Meters. Brand Hanna Instruments. SKU HA-HI2211-02. ID 28389
Medical & Lab Supplies
HI208 Bench top pH meter with Built-in Magnetic Stirrer
The HI208 is a basic, affordable pH benchtop meter that features a built-in magnetic stirrer and automatic calibration to 1 or 2 points with a choice of two sets of pre-programmed buffers. All readings are automatically compensated for temperature variations from the supplied HI1291D two-in-one pH and temperature sensor. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Benchtop pH Meters. Brand Hanna Instruments. SKU HA-HI208-02. ID 28193
Medical & Lab Supplies
HI2221 Calibration Check pH Bench Meter
The HI2221 is an affordable pH/mV benchtop meter that features automatic pH calibration up to five-points that can be performed using seven standard buffers. All pH measurements are compensated for temperature effect automatically with the supplied HI7662 temperature probe. The HI2221 can also measure oxidation reduction potential (ORP) in the mV range using ORP electrode (oxidation-reduction potential)s. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Benchtop pH Meters. Brand Hanna Instruments. SKU HA-HI2221-02. ID 28273
HI5003 is a premium quality pH 3.00 technical calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI5003. ID 27553
HI5004 is a premium quality pH 4.01 technical calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI5004. ID 27555
HI5007-01 is a premium quality pH 7.01 technical calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI5007. ID 27557
HI5010 is a premium quality pH 10.01 technical calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of technical calibration buffers have been specially formulated to have an expiration of 2 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI5010. ID 27559
HI5068 is a premium quality pH 6.86 technical calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI5068. ID 27561
HI5091 is a premium quality pH 9.18 technical calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI5091. ID 27563
Medical & Lab Supplies
HI54710-11 pH 4.01, 7.01 and 10.01 Technical Calibration Solutions with Electrode Storage Solution and Cleaning Solution (5 x 500 mL)
HI54710-11 is a complete set of all the solutions required for routine pH measurement. The HI54701-11 includes our premium quality pH 4.01, 7.01 and 10.01 technical calibration buffer that are NIST traceable and supplied with a Certificate of Analysis. The HI54710-11 also includes bottles of HI70300L storage solution and HI7061L general purpose cleaning solution. All Hanna solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI54710-11. ID 27929
HI6003 is a pH 3.000 calibration buffer with a high accuracy of +/- 0.002 pH. Millesimal buffer solutions are designed for customers who require a resolution of 0.001 for their pH measurements. The HI6003 is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of millesimal calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI6003. ID 27671
HI6074 is a premium quality pH 7.413 millesimal calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Millesimal buffer solutions are designed for customers who require a resolution of 0.001 for their pH measurements. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of millesimal calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI6074. ID 27673
Medical & Lab Supplies
HI70004C pH 4.01 Calibration Buffer (25 x 20 mL) Sachets
HI70004C is a premium quality pH 4.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI70004C is for 25 sachets containing 20 mL of buffer. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI70004C. ID 27689
Medical & Lab Supplies
HI70004P pH 4.01 Calibration Buffer Sachets (25 x 20 mL)
HI70004P is a premium quality pH 4.01 calibration buffer solution. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI70004P is for 25 sachets containing 20 mL of buffer. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI70004P. ID 27611
Medical & Lab Supplies
HI70007C pH 7.01 Calibration Buffer (25 x 20 mL) Sachets
HI70007C is a premium quality pH 7.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI70007C is for 25 sachets containing 20 mL of buffer. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI70007C. ID 27691
Medical & Lab Supplies
HI70007P pH 7.01 Calibration Buffer Sachets (25 x 20 mL)
HI70007P is a premium quality pH 7.01 calibration buffer solution. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI70007P is for 25 sachets containing 20 mL of buffer. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI70007P. ID 27613
Medical & Lab Supplies
HI70010C pH 10.01 Calibration Buffer (25 x 20 mL) Sachets
HI70010C is a premium quality pH 10.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of technical calibration buffers have been specially formulated to have an expiration of 2 years from the date of manufacture for an unopened sachet. The HI70010C is for 25 sachets containing 20 mL of buffer. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI70010C. ID 27693
Medical & Lab Supplies
HI70010P pH 10.01 Calibration Buffer Sachets (25 x 20 mL)
HI70010P is a premium quality pH 10.01 calibration buffer solution. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of calibration buffers have been specially formulated to have an expiration of 2 years from the date of manufacture for an unopened sachet. The HI70010P is for 25 sachets containing 20 mL of buffer. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI70010P. ID 27615
Medical & Lab Supplies
HI7001L pH 1.68 Calibration Solution (500 mL)
HI7001L is a premium quality pH 1.68 calibration solution. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI7001L. ID 27589
Medical & Lab Supplies
HI7004/1G pH 4.01 Calibration Solution (1 G ( 3.78 L))
HI7004/1G is a premium quality pH 4.01 calibration solution that has been dyed red for easy buffer identification. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI7004-1G. ID 27755
Medical & Lab Supplies
HI7004L/C pH 4.01 Calibration Solution (500 mL)
HI7004L/C is a premium quality pH 4.01 calibration solution that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI7004L.C. ID 27503
Medical & Lab Supplies
HI7004L pH 4.01 Calibration Solution (500 mL)
HI7004L is a premium quality pH 4.01 calibration solution. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI7004L. ID 27441
Medical & Lab Supplies
HI70060M pH 6.00 Calibration Solution (230 mL)
HI70060M is a premium quality pH 6.0 calibration solution. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI70060M. ID 27469
Medical & Lab Supplies
HI7006L pH 6.86 Calibration Solution (500 mL)
HI7006L is a premium quality pH 6.86 calibration solution. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI7006L. ID 27415
Medical & Lab Supplies
HI7007L/C pH 7.01 Calibration Solution (500 mL)
HI7007L/C is a premium quality pH 7.01 calibration solution that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI7007L.C. ID 27505
Medical & Lab Supplies
HI7007L pH 7.01 Calibration Solution (500 mL)
HI7007L is a premium quality pH 7.01 calibration solution. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI7007L. ID 27443
HI70082M is a premium quality pH 8.20 calibration buffer solution. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI70082M. ID 27451
Medical & Lab Supplies
HI70083M 8.30 pH Calibration Solution (230 mL)
HI70083M is a premium quality pH 8.30 calibration buffer solution. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI70083M. ID 27471
Medical & Lab Supplies
HI7009L pH 9.18 Calibration Solution (500 mL)
HI7009L is a premium quality pH 9.18 calibration solution. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI7009L. ID 27417
Medical & Lab Supplies
HI7010L/C pH 10.01 Calibration Solution with Certificate (500 mL)
HI7010L/C is a premium quality pH 10.01 calibration solution that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 2 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI7010L.C. ID 27507
Medical & Lab Supplies
HI7010L pH 10.01 Calibration Solution (500 mL)
HI7010L is a premium quality pH 10.01 calibration solution. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of calibration buffers have been specially formulated to have an expiration of 2 years from the date of manufacture for an unopened bottle. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI7010L. ID 27445
Medical & Lab Supplies
HI77400P pH 4.01 and 7.01 Calibration Buffer Sachets (10 x 20mL, 5 Each)
HI77400P is a set of premium quality pH 4.01 and 7.01 calibration buffer solutions. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI77400P is for 5 sachets of pH 4.01 and 5 sachets of pH 7.01 with each containing 20 mL of buffer. Categories: Laboratory The Hanna Range Solutions. Brand Hanna Instruments. SKU HA-HI77400P. ID 27457
Medical & Lab Supplies
Leather and Paper pH Portable Meter - HI99171
The Hanna Instruments HI99171 is a durable, waterproof, and portable pH and temperature meter designed specifically for leather and paper analysis. Automatic calibration is performed at one or two points with two sets of buffers. All calibration and measurement readings are automatically compensated for temperature variations. The HI99171 uses the HI1414D glass body, amplified pH electrode that offers numerous features that improve pH testing for surface measurements. The split-level LCD displays both pH and temperature readings, along with indicators for reading stability, battery percentage, and calibration instructions. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Portable pH Meters. Brand Hanna Instruments. SKU HA-HI99171. ID 28267
Medical & Lab Supplies
pHep®5 pH/Temperature Tester - HI98128
Hanna's pHep 5 waterproof tester is an advanced pH meter that has many features found in more expensive portable and benchtop meters. This ergonomic meter measures from -2.00 to 16.00 pH with an accuracy of ±0.05 pH. pHep 5 features automatic one or two-point calibration to known buffer, automatic temperature compensation. The large multi level LCD display shows both pH and temperature readings simultaneously, while a stability indicator is displayed to alert the user when a stable reading has been obtained. The pHep 5 tester also features a replaceable pH probe that has a unique extendable cloth junction to clear any clogging that occurs. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Testers pH. Brand Hanna Instruments. SKU HA-HI98128. ID 27943
Medical & Lab Supplies
pH METER - WITH INTEGRAL ELECTRODE
Microprocessor based. - Range 0 to 14pH. - Resolution 0.1pH, accuracy 0.2pH. - Hand held - size 157 x 40 x 30mm - Membrane ON/OFF switch. - Manual calibration - pH7 buffer solution and screwdriver included for checking and adjusting calibration. - Fits 1x standard PP9 9volt battery (supplied). - Plastic carry case supplied. NOTE: the pH electrode is not replaceable. Code: INS-5011. Suppliers to schools & laboratories of science equipment & laboratory grade chemicals.
Science & Lab Supplies NZ
Portable Meat pH Meter - HI99163
The HI99163 is a portable Foodcare pH/temperature meter specially designed for the meat processing industry. Automatic calibration is performed at one or two points with two sets of buffers. All calibration and measurement readings are automatically compensated for temperature variations. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Portable pH Meters. Brand Hanna Instruments. SKU HA-HI99163. ID 28265
Medical & Lab Supplies
Portable pH/mV Meter - HI8424
The HI8424 is a compact, waterproof, portable pH/mV/temperature meter that is supplied complete with a protective carrying case, PEI plastic body pH electrodes, stainless steel temperature probe, calibration buffer sachets, and cleaning solution sachets. The meter features automatic calibration at one or two points as well as Automatic Temperature Compensation (ATC) when the temperature probe is connected. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Portable pH Meters. Brand Hanna Instruments. SKU HA-HI8424. ID 75656
Medical & Lab Supplies
Professional Portable Cheese pH Meter Kit - HI98165
The HI98165 is a rugged, waterproof, portable Foodcare pH meter that measures pH and temperature using the specialized FC2423 cheese pH electrode. This professional, waterproof meter complies with IP67 standards. The HI98165 is supplied with all necessary accessories to perform a pH/temperature measurement packaged into a durable thermoformed carrying case that holds the meters, probes and calibration buffers securely in place. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Portable pH Meters. Brand Hanna Instruments. SKU HA-HI98165. ID 75119
Medical & Lab Supplies
Skin pH Portable Meter - HI99181
The Hanna Instruments HI99181 is a durable, waterproof, and portable pH and temperature meter designed specifically for analysis of skin. Automatic calibration is performed at one or two points with two sets of buffers. All calibration and measurement readings are automatically compensated for temperature variations. The HI99181 uses the HI1414D/50 glass body, amplified pH electrode that offers numerous features that improve pH testing for skin and surface measurements. The split-level LCD displays both pH and temperature readings, along with indicators for reading stability, battery percentage, and calibration instructions. Categories: Laboratory The Hanna Range, pH Meters and Electrodes, Portable pH Meters. Brand Hanna Instruments. SKU HA-HI99181. ID 28269
Medical & Lab Supplies
pH METER - ELECTRODE CARE OF
PLEASE READ CAREFULLY. Many schools send pH meters to us for repair. For approximately 95% of these we find that the pH electrode is at fault. Given care it will last for quite A while - up to 3 years - but please note that, even for the best electrode available, it is considered acceptable if it functions for 1 year once activated. If not cleaned properly or left to dry out it may not be able to be resurrected. Try soaking in pH storage solution (cat.ALP 1825) for 24 hours. NEVER store A pH electrode in distilled water - the distilled water absorbs the ions out of the electrode electrolyte. By cleaning well after use and soaking electrode in storage solution or A buffer solution of about pH4 it is possible to extend its life considerably. As pH electrodes age they get sluggish in their operation and take longer to settle on A reading. Therefore more time needs to be allowed when calibrating and taking readings. Replace pH electrode if too sluggish.. Suppliers to schools & laboratories of science equipment & laboratory grade chemicals.
Science & Lab Supplies NZ
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