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Portable pH Meters

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 – 15 of 69 results
1

Mettler Toledo™ FiveGo™ F2 pH/mV Meters

Portable meter provides reliable and high quality pH/mV measurements with simple click of a button

Promotions are available
Accuracy (mV) ±1
Memory 200 measurements, current calibration
Resolution (pH) 0.01
Range (pH) 0 to 14
Calibration Points 3
Temperature Compensation ATC and MTC
Dimensions (L x W x H) 18.8 x 7.7 x 3.3 cm (97.4 x 3 x 1.3 in.)
Display Type LCD
Resolution (mV) 1mV
Weight (English) 0.5 lb.
Resolution (Temperature) 0.1°
Inputs BNC, Cinch
Accuracy (Temperature) ±0.5°C
Weight (Metric) 0.26 kg
2

Hanna Instruments™ Checker™ pH Tester and Replacement Part

For use with virtually any electrode that shares same connector.

EDGE
3

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.

Promotions are available
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 Node
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 IP-67
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
4

Fisherbrand™ accumet™ AE6 Portable pH/ORP Meter

The AE6 Portable pH Meters are ideal for quick, accurate conductivity or TDS checks in laboratories, field and schools.

Promotions are available
EDGE
Accuracy (mV) ±1
Resolution (pH) 0.01
Range (pH) 0 to 14
Calibration 1.68, 4.01, 7, 10.01, 12.45
For Use With (Application) Water Quality Testing
Battery Type AAA
Accuracy (pH) ±0.01
Calibration Points 1 to 5
Type Portable Meter
Temperature Compensation Automatic/Manual (0°C to 100°C)
Resolution (mV) 1 mV
Resolution (Temperature) 0.1°C
Temperature Range (Metric) 0°C to 100°C
Range (mV) -1000 to +1000 mV
Accuracy (Temperature) ±0.5°C
5

Fisherbrand™ accumet™ AP115 Portable pH Meter

Accurate measurements any time, anywhere

Promotions are available
6

Thermo Scientific™ Eutech™ pH 150 Meter Kit

Eutech™ offers a wide range of pH meters and electrodes that measure pH values in various educational, laboratory and industrial applications. 

Promotions are available
Memory Stores up to 150 data sets
Resolution (pH) 0.01
Range (pH) -2 to 16
Calibration mV: ±200 mV, Temp: Offset in 0.1 increments, ±10°C or ±18°F
Accuracy (pH) ±0.01
Power Supply Two AA batteries (included), >700 hours continuous use; AC adapter (optional)
Calibration Points Up to 5 (USA & NIST), Up to 6 (DIN)
Temperature Compensation Automatic/Manual (-10°C to 110°C)
Display Type LCD, 3-Line Custom
Resolution (mV) 0.1 mV ±999.9 mV; 1 mV beyond
Range (Relative mV) ±2000
Data Points 150
Temperature Range (English) 14.0°F to 230.0°F
Resolution (Temperature) 0.1°C/°F
Temperature Range (Metric) -10°C to +110°C
Accuracy (Temperature) ±0.5°C;/±0.9°F
7

Hanna Instruments™ Waterproof Portable pH Meter

Features a large, dual level LCD display for easy viewing of the pH, temperature, and status indicators. Hanna Instruments™ Waterproof Portable pH Meter offers a simplified two-button operation. Compact, waterproof, and portable.

8

Hanna Instruments™ Portable HACCP pH Meter

Designed specifically for use in the food and dairy industries

9

Fisherbrand™ accumet™ AET15 pH Tester

Large display screen - dual display LCD for enhanced readability, provides comprehensive meter information

Promotions are available
EDGE
10

WTW™ ProfiLine™ pH 3310 Portable pH Meter

Portable, waterproof and robust meters for the determination of the parameters pH, ORP, dissolved oxygen, conductivity and BSB

Promotions are available
Memory Manual 500/5000 automatic
Resolution (pH) ±0.005
Range (pH) -2 to 19.999
For Use With (Application) For professional field measurements requiring documentation and data transfer
Width (Metric) 80 mm
Accuracy (pH) ±0.1, ±0.01, ±0.005
Power Supply 4 x 1.5V AA or 4 x 1.2V NiMH rechargeable
Battery Life 1000 hr.
Display Type LCD
Resolution (mV) ±0.3, ±1mV
Certifications/Compliance CE
Accuracy (Temperature) ±0.1°C
Weight (Metric) 300 g
Height (Metric) 180 mm
Accuracy (mV) ±0.3, ±1
Warranty 3 Years
Battery Type AA, NiMH
Calibration Points 1, 2, 3, 4, 5 Calibration WTW Technical Buffer, DIN/NIST buffers plus 20 additional buffer set
Type Portable pH meter
Dimensions (L x W x H) 80 W x 180 H mm
IP Rating IP-66/67
Depth (Metric) 55 mm
Temperature (Metric) Operating -5°C to +105°C
Range (mV) -1200 to 1200, -2500 to 2500
Dimensions (L x W) 80 W mm
Resolution All values ±1 digit
11

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.

Promotions are available
12

Thermo Scientific™ Eutech™ CyberScan pH 600 Meter

Eutech™ offers a wide range of pH meters and electrodes that measure pH values in various educational, laboratory and industrial applications. 

13

Fisherbrand™ accumet™ AP110 Portable pH Meter

Accurate measurements any time, anywhere

Promotions are available
14

Thermo Scientific™ Eutech™ pH 450 Meter

Eutech™ offers a wide range of pH meters and electrodes that measure pH values in various educational, laboratory and industrial applications. 

Promotions are available
Memory Stores up to 500 data sets
Resolution (pH) 0.01
Measurement Modes 500
Range (pH) -2 to 16
Accuracy (Ion) ±0.5 % full scale (monovalent); ±1 % full scale (divalent)
Accuracy (pH) ±0.01
Includes Real-Time Clock: Time and date stamp on calibration and stored data
Battery Life >500 hr. (without backlight)
Temperature Compensation Automatic/Manual (-10°C to 110°C)
Display Type LCD, Custom with Backlight
Resolution (Ion) 0.01 / 0.1 / 1 ppm
Resolution (mV) 0.1 mV ±999.9 mV; 1 mV beyond
Data Points 500
Temperature Probe Calibration Offset in 0.1 increments, ±10 °C or ±18 °F
Accuracy (Temperature) ±0.5°C/±0.9°F
Weight (Metric) Meter: 0.5 kg, Boxed: 0.7 kg
Accuracy (mV) ±0.2 +2 LSD or +0.5 % of reading, whichever is greater
AC Adapter Optional
Calibration mV: ±200 mV, Ion: From 2 to 4 or 2 to 5 points: 0.10, 1.00, 10.0, 100.0 & 1000 / 0.20, 2.00, 20.0
Battery Type 2 x AA batteries (included)
Calibration Points Up to 5 (USA & NIST & CUSTOM), Up to 6 (DIN)
Dimensions (L x W x H) Meter: 7 7/8 x 3 1/8 x 2 1/4 in (20 x 8.3 x 5.7 cm), Boxed: 9 1/8 x 9 1/8 x 2 3/4 in (23 x 23 x 7 cm)
IP Rating IP-67
Outputs USB, RS-232
Temperature Range (English) 14.0°F to 230.0°F
Range (Ion) 0.0 to 2000 ppm
Weight (English) Meter: 1 lb., Boxed: 1.4 lb.
Resolution (Temperature) 0.1°C/°F
Temperature Range (Metric) -10°C to +110°C
Range (mV) ±2000
15

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.