Basic pH Meter Review
Hanna Instruments HI 2212 Flexible Calibration pH Meter, with Three Point Calibration Review
The HI 99141N is a pH and temperature benchtop meter suitable for lab use. The meter features pH and temperature probes, an LCD screen, manual or Automatic Temperature Compensation (ATC), and a Good Laboratory Practice (GLP) feature, which provides data consistency. A calibration expiration reminder can be set to alert the user when too much time has elapsed since the last pH calibration and a new one should be performed.
Calibration can be performed at up to three points using five standard (4.01, 6.86, 7.01, 9.18, 10.01) and two custom buffers, and calibration sachets are included.
pH range is -2.00 to 16.00 (+ or - 0.01 pH) with a resolution of 0.01 pH. Temperature range is -20.0 to 120.0 degrees C (-4.0 to 248.0 degrees F) + or - 0.2 degrees C (excluding probe error) with a resolution of 0.1 degrees C. Input impedance is 1012 Ohm and the device operates on a 12 VDC adapter. Dimensions are 235 x 222 x 109 mm (9.2” x 8.7” x 4.3’’), and weighs 1.3 kg (2.9 lbs.).
pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.
Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) 9001 standards.
What’s in the Box?
Hanna Instruments HI 9124N Auto-Instruction pH Meter Review
The Hanna Instruments HI 9124 is a handheld waterproof pH, and temperature meter for measuring the acidity or alkalinity of a substance.
The meter features a large, easy-to-read, dual-level LCD screen, with a graphical interface that provides on-screen calibration instructions. Temperature compensation and pH calibration are automatic, with five memorized buffer values (pH 4.01, 6.86, 7.01, 9.18 and 10.01).
The HI 9124 has a range of -2.00 to16.00 pH (+ or - 0.01) with a resolution of 0.01 pH. Temperature range is -20.0 to 120.0 degrees C/-4.0 degrees F to 248.0 degrees F (+ or - 0.4 degrees C /+ or - 0.8 degrees F) with a resolution of 0.1 degrees C/0.1 degrees F. Input impedance is 1012 Ohm, and the meter operates using four 1.5V AAA batteries (sold separately).
pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.
Hanna Instruments manufactures a wide variety of analytical instrumentation, including pH meters, multi-parameter meters, electrodes, chemical reagents and buffer solutions. Founded in 1978, Hanna is headquartered in Woonsocket, RI, with subsidiaries in 32 countries. Hanna Instruments holds many firsts in the field of analytical instrumentation, including a pH electrode with a built-in temperature sensor, an electronic pocket-sized pH tester, and a replaceable electrode pH pocket tester. To ensure the quality of their products, Hanna is a vertically integrated manufacturer and does not subcontract any part of its manufacturing.
What's in the Box?
Benchtop Meter 860033 | pH | ORP | Conductivity | TDS | Salinity | Temperature | Sper Scientific Review
Oakton pH 110 Meter, with Two Electrode Holders and Software Review
The Oakton 35615-22 pH 110 is a handheld meter that has push-button, five-point calibration and comes with an all-in-one pH/temperature probe, two electrode holders, and software. A portable meter is commonly used to measure the pH, mV, and temperature of substance in water treatment and swimming pools and in hydroponics, aquaculture, and educational applications.
This meter features two electrode holders for one-handed use, and ATC for accurate readings, push-button capabilities up to five points, and auto-buffer recognition of US, National Institute of Standards and Technology (NIST) and Deutsches Institut für Normung (DIN) standards for ease of use. It has a dual-screen digital LCD display to view pH, mV, and temperature, a hold function for reading and recording data, and an auto-off function for automatic shut-off after a period of nonuse. The meter has the ability to recall up to 100 data sets and comes with Oakton CyberComm Data Acquisition Software (DAS) to organize data to import into spreadsheet programs.
The 35615-22 pH 110 has an operating temperature of 0 to 50 degrees C (32 to 122 F) and buffer recognition standards USA: 1.68, 4.01, 7.00, 10.01, 12.45; NIST 1.68, 4.01, 6.86, 9.18, 12.45; DIN 1.09, 3.06, 4.65, 6.79, 9.23, 12.75; PWB 4.10, 6.97. pH range -2.00 to 16.00, resolution 0.01 and 0.1 pH, accuracy + or - 0.01. MV range + or - 2000 (same for relative mV), resolution 0.1 + or - 399.9 mV, 1 mV beyond, accuracy + or - 0.2 + or - 399.9 mV 2 mV beyond. Temperature range -10.00 to 110.0 C (14 to 230 F), resolution 0.1 degree C, accuracy + or - 0.5 degree C. Computer requires a 386 and above that can run MS Windows 95 or higher, CD ROM drive hard disk w/ ~ 500 KB free disk space, EG monitor or above and 9-pin serial port connecting cable. It has an RS-232, 9-pin female output connector. Its dimensions are 7.50 (l) x 3.5 (w) x 1.75 (d) inches and it weighs 1.0 lb. The meter works with four 1.5-V AAA batteries (not included) or 9-V, 500 mA, and an AC adapter (not included) for up to 600 hours of continuous use.
pH testers measure the acidity or alkalinity of a substance and are commonly used for water-testing, and to analyze biological samples in hydroponics, aquaculture, and agriculture.
Oakton Instruments manufactures an array of scientific instruments for research, industrial, and educational uses. Since 1991, Oakton has distributed a wide variety of instruments such as meters, electrodes, and transmitters. Oakton is based in Vernon Hills, IL, and has facilities in Europe, Asia, and China.
What’s in the Box?
Mettler Toledo InLab Expert Pro-ISM pH Sensor, with Fixed Cable, For S220 SevenCompact pH/Ion Meters Review
Hanna Instruments HI 9126W Waterproof pH/ORP Meter, for Wine Review
The HI 9126W is a portable pH, temperature and oxidation reduction potential (ORP) meter for both indoor and outdoor use.
The meter features pH and temperature probes, a large LCD screen, automatic temperature compensation (ATC), and a battery error protection system to prevent inaccurate readings. Calibration is automatic at one or two points with five memorized buffer values (4.01, 6.86, 7.01, 9.18, 10.01 pH), and calibration sachets are included.
pH range is -2.00 to 16.00 (+ or - 0.01pH) with a resolution of 0.01 pH. Temperature range is -20.0 to 120.0 degrees C (- 4.0 to 248.0 degrees F) + or - 0.4 degrees C (0.8 degrees F) with a resolution of 0.1 degrees C or F. ORP range is + or - 699.9 mV; + or - 1999 mV (+ or - 0.2 mV; 1 mV), with resolutions 0.1 mV; 1 mV. Input impedance is 1E12 Ohm and the device operates on three 1.5 AAA batteries with an auto-off function after 20 minutes of non-use. Dimensions are 185 x 72 x 36 mm (7.3 x 2.8 x 1.4’’), with weight 300 g (10.6 oz.). ORP probes are sold separately.
pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.
Hanna Instruments manufactures a wide variety of analytical instrumentation, including pH meters, multi-parameter meters, electrodes, chemical reagents and buffer solutions. Founded in 1978, Hanna is headquartered in Woonsocket, RI, with subsidiaries in 32 countries. Hanna Instruments holds many firsts in the field of analytical instrumentation, including the world’s first pH electrode with a built-in temperature sensor, electronic pocket-sized pH tester, and replaceable electrode pH pocket tester. To ensure the quality of its products, Hanna is a vertically integrated manufacturer and does not subcontract any part of its manufacturing.
What’s in the Box?
HM Digital TDS-EZ Meter Tester Water/ppm/Purity/Filter Review
Hanna Instruments HI 84429-01 Titratable Acidity Mini Titrator and pH Meter, For Dairy Industry Review
The HI 84429-01 is a microprocessor-based automatic minititrator and pH meter suitable for analyzing Total Titratable Acidity in milk. It features a simple peristaltic pump to ensure accuracy. The instrument employs a built-in algorithm to analyze the pH response to determine the exact pH endpoint, then uses this to make necessary calculations. The Titratable Acidity Determination is displayed instantaneously in user-selected measurements on the large dot matrix display. The meter calibrates pH at up to three points using three buffers (4.01, 6.00, 8.30). It features Manual or Automatic Temperature Compensation, and can log up to 100 samples (50 for pH measurement; 50 for titration results). The electrodes and probe are replaceable, prolonging the life of the meter, and Good Laboratory Practice (GLP) features allow user to view last calibration data for pH electrode and pump.
Range is -2.0 to 16.0; -2.00 to 16.00 pH + or - 0.01 pH, with a resolution of 0.1; 0.01 pH. Temperature range is -20.0 to 120.0 degrees C (-4.0 to 248 degrees F) + or – 0.4 degrees C (excluding probe error) at 20 degrees C), with a resolution of 0.1 degrees C. The device operates on a 12 VDC power adapter. Dimensions are 208 x 214 x 163 mm/8.2” x 8.4” x 6.4’’ (H x W x D) with beaker, and weighs 2200 g (77 oz.).
There are two fundamentally different conventions for expressing acidity in dairy products—titratable acidity and pH. The pH is a measurement of hydrogen ion concentrations and the titratable acidity is the neutralizing capacity by a base. The titrator and pH meter eliminate the subjective endpoint color change detection determined by the human eye, and instead employ the sensitivity and accuracy of a pH sensor. The titration method is a potentiometric endpoint determination using a pre-determined pH value. These instruments are commonly used in the dairy industry.
Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) 9001 standards.
What’s in the Box?
Sper Scientific pH Meter - Advanced - 850055 Review
WTW ProfiLine pH 3210 meter only Review
Hanna Instruments HI 8314 Portable Analog pH/ORP/Temperature Meter, with Pre-Amplified pH Electrode Review
Hanna Instruments HI 8424 Waterproof Portable pH Meter, with ATC and HOLD Feature Review
The Hanna Instruments HI 8424 Waterproof pH Meter w/Automatic Calibration and Temperature Compensation is a microprocessor-based pH, mV and temperature tester.
The HI 8424 features a large LCD screen for readability, and automatic or manual temperature compensation depending on probe used. Calibration is automatic using three memorized buffer values (pH 4.01, 7.01, and 10.01). The meter includes a pH electrode and temperature probe, but ORP probes must be purchased separately. The meter operates on one 9V battery which can be recharged by laying the device on the HI 710040 battery charger (purchases separately) for about 14 hours. The meter features an auto-off function after 20 minutes (which can be disabled), and the Battery Error Prevention System (BEPS) which turns the meter off if the battery is low enough to take false readings.
pH range is -2.00 to 16.00 pH (+ or – 0.01), with resolution 0.01 pH. The HI 8424 tester measures temperatures of -20.0 to 120.0 degrees C (-4.0 to 248.0 degrees F) with accuracy + or - 0.4 degrees C/+ or - 0.8 degrees F, RH max 100%. Temperature effects are automatically compensated for from -20 to 120°C (-4 to 248 degrees F), or manually calculated without the temperature probe. Oxidation Reduction Potential (ORP) measurements have a range of + or - 699.9mV and + or - 1999mV (accuracy + or - 0.2 mV; + or - 1 mV) with a resolution of 0.1 mV and an automatic switch to 1mV resolution when readings reach + or - 699.9mV. The device has an input impedance of 1012 Ohm.
pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.
Hanna Instruments manufactures a wide variety of analytical instrumentation, including pH meters, multi-parameter meters, electrodes, chemical reagents and buffer solutions. Founded in 1978, Hanna is headquartered in Woonsocket, RI, with subsidiaries located in 32 countries. Hanna Instruments holds many firsts in the field of analytical instrumentation, including the world’s first pH electrode with a built in temperature sensor, electronic pocket-sized pH tester, and replaceable electrode pH pocket tester. To assure the quality of their products, Hanna is a vertically integrated manufacturer and does not subcontract any part of its manufacturing.
What’s in the Box?
Hanna Instruments HI 99121N Direct Soil and Water Portable pH/Temperature Meter Review
The HI 99121N is a portable, waterproof pH and temperature meter that comes with the HI 1292D pH electrode for measuring diluted soil samples or soil directly, and features a large LCD screen, automatic temperature compensation (ATC), a hold function to freeze and record results, and a battery error protection system (BEPS) to reduce inaccurate readings. The meter comes with the HI 1292D electrode, which has a sturdy conical tip that can be directly inserted in soft soil, and the HI 721319 plastic soil auger for perforating harder soil.
The meter features on-screen tutorial messages to assist with calibration, which is automatic at one or two points. The HI 99121N comes with (3) AAA 1.5 V batteries that provide approximately 1200 hours of continuous use (an auto off function shuts the meter off after 8 minutes of non-use). A 100 mL beaker and starter buffer, cleaning and soil preparation sachets are included.
pH range is -2.00 to 16.00 (+ or - 0.02pH) with a resolution of 0.01 pH. Temperature range is - 5.0 to 105.0 degrees C (23.0 to 221.0 degrees F) + or - 0.5 degrees C (up to 60 degrees C), + or - 1 degree C (outside); + or - 1.0 degree F (up to 140 degrees F), + or - 2 degrees F (outside), with a resolution of 0.1 degrees C or F. Dimensions are 152 x 58 x 30 mm (6.0 x 2.3 x 1.2”), with weight 205g (7.2 oz.).
pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.
Hanna Instruments manufactures a wide variety of analytical instrumentation, including pH meters, multi-parameter meters, electrodes, chemical reagents and buffer solutions. Founded in 1978, Hanna is headquartered in Woonsocket, RI, with subsidiaries located in 32 countries. Hanna Instruments holds many firsts in the field of analytical instrumentation, including the world’s first pH electrode with a built in temperature sensor, electronic pocket-sized pH tester, and replaceable electrode pH pocket tester. To assure the quality of its products, Hanna is a vertically integrated manufacturer and does not subcontract any part of its manufacturing.
What’s in the Box?
HM Digital COM-100 Waterproof EC/TDS/TEMP Meter Review
Hanna Instruments HI 98140N Waterproof Portable pH Meter, with Smart Electrode and Log-On-Demand Review
The HI 98140N waterproof pH meter for measuring pH and temperature uses Hanna’s smart electrode technology that stores calibration data, a log on demand feature for storing up to 500 samples, and includes the HI 1618D PEI body, pre-amplified pH electrode, which has an internal temperature sensor, DIN connector and a 1 m (3.3’) cable for reaching test sites. The HI 98140N meter features the Hanna battery error prevention system (BEPS), which alerts the user when low battery power could produce erroneous readings, and has a user-set auto off function that can be disabled.
The tester provides fast and accurate pH and temperature readings and features a large easy-to-read LCD screen, automatic temperature compensation (ATC) from -20 to 120 degrees C or -4 to 248 degrees F, and automatic calibration (up to three points with two custom buffers and seven memorized buffers: 1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45). The meter also has on-screen tutorials on its large backlit LCD screen, and a user-selectable “calibration time out”, and comes with a USB connection for connecting the meter to a PC to download data.
The HI 98140N tester measures temperatures of -20.0 to 120.0 degrees C (-4.0 to 248.0 degrees F) + or - 0.2 degrees C (+ or – 0.4 degrees F); RH max 100% with resolution + or - 0.1 degrees C (+ or – 0.1 degrees F), and has a range of -4.00 to 20.00 pH (+ or - 0.1; 0.01) with a resolution of 0.1; 0.01 pH. Power is supplied through (3) 1.5V AAA batteries, which provide up to 200 hours of continuous use without the backlight (50 hours with the light on). At 185 x 72 x 36 mm (7.3 x 2.8 x 1.4’’) and 300 g (10.6 oz.), the 98140N is a conveniently sized meter for taking measurements in the field.
pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.
Hanna Instruments manufactures a wide variety of analytical instrumentation, including pH meters, multi-parameter meters, electrodes, chemical reagents, and buffer solutions. Founded in 1978, Hanna is headquartered in Woonsocket, RI, with subsidiaries in 32 countries. Hanna Instruments holds many firsts in the field of analytical instrumentation, including a pH electrode with a built-in temperature sensor, an electronic pocket-sized pH tester, and a replaceable electrode pH pocket tester. To ensure the quality of its products, Hanna is a vertically integrated manufacturer and does not subcontract any part of its manufacturing.
What’s in the Box?
Hanna Instruments HI 2221N Calibration Check pH/ORP/Temperature Benchtop Meter Review
The HI 2221 is a pH , Oxidation Reduction Potential (ORP), and temperature benchtop meter featuring calibration check diagnostics for pH electrodes and buffer solutions during calibration. The function notes if the device is properly calibrated, and provides a calibration range warning to notify the user if a reading appears too far from the calibration periphery. The instrument can measure using Oxidation Reduction Potential (ORP) electrodes due to its capability to measure mV with a resolution up to 0.1 mV.
The meter features five point calibration with seven memorized buffers (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45), Manual or Automatic Temperature Compensation, and Good Laboratory Practice (GLP) capabilities that allow storage and retrieval of all pH related data. It has a logging capability of up to 100 points. A built-in logging function stores measurements in non volatile memory and can be transferred to a PC through a USB port.
pH range is -2.00 to 16.00 pH (+ or – 0.01 pH) with a resolution of 0.01 pH. mV range is + or – 699.9; 2000 mV (+ or – 0.2 mV; 1 mV) with a resolution of 0.1; 1 mV. Temperature range is -20.0 to 120.0 degrees C (+ or - 0.2 degrees excluding probe error) with a resolution of 0.1 degrees C. Input impedance is 1E12 Ohms and the device operates on a 12 VDC adapter. Dimensions are 235 x 222 x 109 mm (9.2” x 8.7” x 4.3’’), and weighs 1.3 kg (2.9 lbs.).
pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.
Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) 9001 standards.
What’s in the Box?
