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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 – 15 of 68 results
1

Fisherbrand™ accumet™ AET15 pH Tester

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

EDGE
2

Eutech™ EcoTestr pH Meter

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

EDGE
Battery Life 250 hr.
IP Rating IP67
Resolution (pH) 0.1
Measurement Modes pH
Range (pH) 0 to 14
Battery Type A76/LR44 Alkaline
Accuracy (pH) ±0.1
3

Fisherbrand™ Waterproof pH Pen

pH measurement is easier than ever with the Fisherbrand™ pH Pen. An economical range pocket-size tester designed for on-the-go pH measurements.

EDGE
4

Hanna Instruments™ Checker™ pH Tester and Replacement Part

For use with virtually any electrode that shares same connector.

EDGE
5
Promotions Available

Mettler Toledo™ FiveGo™ F2 pH/mV Meters

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

Accuracy (mV) ±1
Memory 200 measurements, current calibration
Log Function Type Automatic, Manual
Resolution (pH) 0.01
Measurement Modes pH
Range (pH) 0 to 14
Calibration Linear
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
Model F2
Resolution (mV) 1mV
Data Points 200
Backlight Option None
Weight (English) 0.5 lb.
Resolution (Temperature) 0.1°
Temperature Range (Metric) 0°C to 100°C
Range (mV) -1999 to 1999
Inputs BNC, Cinch
Accuracy (Temperature) ±0.5°C
Weight (Metric) 0.26 kg
6

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.

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
Temperature Compensation Automatic/Manual (0°C to 100°C)
Model AE6
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
7
Promotions Available

Fisherbrand™ Handheld pH/ORP meter KIT with Accumet AE6BK, pH electrode, ATC, in carrying case

Fisherbrand Handheld pH/ORP meter KIT with Accumet AE6BK, pH electrode, ATC, in carrying case

8

Thermo Scientific™ Elite pH Pocket Testers and Replacement Sensors

Flexible on-the-go pH and temperature testing using durable Elite pocket testers with replaceable sensors for a variety of applications including environmental monitoring, pools, spas and more!

9

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
10

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.

12

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.

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 IP67
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
13
Promotions Available

Fisherbrand™ Handheld pH/ORP meter Accumet KIT with Accumet AE6K in carrying case

Fisherbrand Handheld pHmeter Accumet KIT with Accumet AE6K in carrying case

14
Promotions Available

WTW™ ProfiLine™ pH Portable Meters
GREENER_CHOICE

Obtain optimum results with this easy and robust portable pH/mV meter with an automatic autoread function for routine pH measurements that is safe, secure, reliable, and prevents errors.

Height (Metric) 180 mm
Accuracy (mV) ±0.3, ±1
Warranty 3 Years
Resolution (pH) ±0.005
Range (pH) -2 to 19.999
For Use With (Application) Ideal for all seeking an easy, robust and waterproof instrument for portable pH measuring
Width (Metric) 80 mm
Battery Type AA, NiMH
Accuracy (pH) ±0.1, ±0.01, ±0.005
Power Supply 4 x 1.5V AA or 4 x 1.2V NiMH rechargeable
Calibration Points 1, 2 or 3 Calibration WTW Technical Buffer, DIN/NIST buffers
Battery Life 2500 hr.
Dimensions (L x W x H) 80 W x 180 H mm
Display Type LCD, 7 Segment
IP Rating IP67
Depth (Metric) 55 mm
Resolution (mV) ±0.3, ±1mV
Certifications/Compliance CE
Temperature (Metric) Operating -5°C to +105°C
Range (mV) -1200 to 1200, -2000 to 2000
Accuracy (Temperature) ±0.1°C
Dimensions (L x W) 80 W mm
Resolution All values ±1 digit
Weight (Metric) 0.6 kg
15
Promotions Available

WTW™ ProfiLine™ pH 3310 Portable pH Meter
GREENER_CHOICE

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

Height (Metric) 180 mm
Accuracy (mV) ±0.3, ±1
Warranty 3 Years
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
Battery Type AA, NiMH
Accuracy (pH) ±0.1, ±0.01, ±0.005
Power Supply 4 x 1.5V AA or 4 x 1.2V NiMH rechargeable
Calibration Points 1, 2, 3, 4, 5 Calibration WTW Technical Buffer, DIN/NIST buffers plus 20 additional buffer set
Battery Life 1000 hr.
Dimensions (L x W x H) 80 W x 180 H mm
Display Type LCD
IP Rating IP66/67
Depth (Metric) 55 mm
Resolution (mV) ±0.3, ±1mV
Certifications/Compliance CE
Temperature (Metric) Operating -5°C to +105°C
Range (mV) -1200 to 1200, -2500 to 2500
Accuracy (Temperature) ±0.1°C
Dimensions (L x W) 80 W mm
Resolution All values ±1 digit
Weight (Metric) 300 g