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Portable pH Meters

Instruments used to measure the acidity or alkalinity of a sample, and designed for portability and durability.

Portable pH meters are most often used away from the physical lab to measure the acidity or alkalinity of liquids in more remote locations.

A pH meter actually measures hydrogen-ion activity in water-based solutions. The liquid’s acidity or alkalinity is expressed as a pH unit. The pH scale ranges from 0 to 14, meaning a liquid with a pH below 7 is acidic and a pH above 7 is basic. A pH of 7 is considered neutral.

Also called electrochemistry meters, pH meters are potentiometric and determine the difference in electrical potential between the measuring electrode and a reference electrode.

Some portable pH meters accomplish routine tasks, often used to determine the pH of swimming pools and meet other commercial needs. These are sometimes called pH testers. Indicators or litmus papers can also be used to qualitatively measure pH.

Modern portable pH meters are typically digital and may detect more than pH. Some are equipped to measure specific ions, dissolved oxygen content, or conductivity.

Many portable pH meters are waterproof to protect against accidental dropping or adverse environmental conditions like rain or snow. Some electrodes are also equipped with longer cables to allow for submersion in a reservoir of water or other liquid.

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1

Hanna Instruments™ pH/Conductivity/TDS Tester

Designed for high accuracy measurements using one meter. Hannna Instruments™ pH/Conductivity/TDS Tester includes easy to read dual LCD display of pH/°C or TDS/°C. Includes 'HOLD' function and replaceable pH electrode.

2

Hanna Instruments™ Portable Waterproof pH/EC/TDS Meters

Designed to measure pH, conductivity (EC), total dissolved solids (TDS), and temperature with a single probe. Hanna Instruments™ Portable Waterproof pH/EC/TDS Meters are available for high range and low range measurement.

Detection Range 0 to 14 pH
Resolution (pH) 0.01
Range (pH) 0 to 14
Accuracy (pH) ±0.01
Includes HI 1288 probe, batteries, 1m cable, rugged carrying case and instructions
Battery Life 500 hr.
Temperature Compensation pH: automatic; EC/TDS: automatic with β adjustable from 0.0 to 2.4%/°C
Display Type LCD
Accuracy (Conductivity) ±2% F.S.
Certifications/Compliance IP 67
Probe Type HI1288 PVC body, pre-amplified multiparameter probe with internal temperature sensor, DIN connector and 1m cable
Accuracy (Temperature) ±0.5°C/±1°F
Weight (Metric) 205 g
Warranty 2 Years (6 Months Probe)
Material PVC
Calibration Automatic
Battery Type 1.5V (3) AAA, Auto-Off after 8 min. non-use
Type Portable pH/EC/TDS/Temperature Meter
Dimensions (L x W x H) 150 x 80 x 36 mm (5.9 x 3.1 x 1.4 in.)
Accuracy (TDS) ±2% full scale
Keypad Two-button
Temperature Range (English) 32.0°F to 140.0°F
Weight (English) 7.2 oz.
Resolution (Temperature) 0.1°C/F
Temperature Range (Metric) 0°C to 60.0°C
Resolution TDS Conversion Factor: 0.45 to 1.00
3

Hanna Instruments™ Portable Waterproof pH/EC/TDS Meters

Designed to measure pH, conductivity (EC), total dissolved solids (TDS), and temperature with a single probe. Hanna Instruments™ Portable Waterproof pH/EC/TDS Meters are available for high range and low range measurement.

4
Promotions Available

Thermo Scientific™ Orion Star™ A221 Portable pH Meter
BIOPHARMA

Reliably measure pH, mV, ORP and temperature with our portable pH meter for advanced field analysis and printer or computer interfacing.

5
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Thermo Scientific™ Orion Star™ A121 Portable pH Meter
BIOPHARMA

Take simple pH and temperature measurements with our portable pH meter with easy operation for basic field testing.

Memory Non-volatile memory preserves log and settings
Resolution (pH) 0.01, 0.1
Languages English
Measurement Modes pH,mV,Relative mV with Temperature
Range (pH) -2 to 16
Channels 1
Accuracy (pH) ±0.01
Power Supply 4 AA batteries (included) or universal AC adapter (sold separately)
Battery Life 2000 hr.
Data Management Details Internal Data Point Memory
Display Type LCD
Resolution (mV) 0.1mV
Data Points 50
Certifications/Compliance CE, TUV 3-1, FCC Class A
Temperature Probe Calibration 1 point temperature offset calibration
Inputs BNC (pH or ORP electrode), 8 pin MiniDIN (ATC temperature probe)
Accuracy (Temperature) ±0.1°C
Weight (Metric) 0.5 kg
Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
Stability Smart Stability and Smart Averaging
Warranty 3 Year Meter Warranty
Temperature (English) Operating 41°F to 113°F (ambient)
Isopotential Point 7.00pH
AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Log Function Type Automatic with Auto-Read Measure Mode, Manual with Continuous Measure Mode
Calibration pH, relative mV (RmV) and temperature
Battery Type 4 x AA
Relative Humidity Range 5 to 85%, non-condensing
Calibration Points 1 to 3
Dimensions (L x W x H) 24 cm x 10 cm x 6.5 cm (9.5 in. x 3.9 in. x 2.6 in.)
IP Rating IP67
Temperature Selection Manual or automatic with ATC temperature probe
Keypad Simple with highlighted measure key, scroll and shortcut keys
Model Orion Star A121 Portable pH/mV/RmV/Temperature Meter
Outputs None
Range (Relative mV) ±1999.9mV
Temperature Range (English) 22.0°F to 221.0°F
Weight (English) 2 lb.
Resolution (Temperature) 0.1°C, 0.1°F
Temperature (Metric) Operating 5°C to 45°C (ambient)
Temperature Range (Metric) -5°C to +105°C
Range (mV) ±1600.0
6

Hach™ HQ 30D Flexi Digital Multi-Parameter Meter Kit

Combines reliability, flexibility and ease of use. Hach™ HQ 30D Flexi Digital Multi-Parameter Meter Kit is a portable single channel meter for pH, ORP, conductivity, TDS, resistivity, salinity and LDO. It is supplied with a pH gel electrode, a standard conductivity cell and a 3m cable.

7

Lovibond™ Tintometer™ SD 320 Con Waterproof Handheld Meter

Measures Conductivity, Salinity, TDS and Temperature. The SD 300 series is a range of waterproof hand-held meters for drinking water, cooling and boiler water, waste water, pool water and surface water applications.