pH Meters

Instruments used to measure the acidity and alkalinity of water, other liquids, and solutions; the difference in voltage between pH-sensitive glass electrodes and reference electrodes is converted into pH units based on the Nernst equation.

Benchtop pH Meters (21)

Portable pH Meters (10)

1 – 6 of 6 results

Mettler Toledo™ FiveEasy™ F20 pH/mV Meters

Compact, benchtop meter provides high quality pH/mV measurements with simple click of a button

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Pricing & Availability
Specifications

Accuracy (mV)	±1
Memory	Current calibration
Resolution (pH)	0.01
Range (pH)	0 to 14
Calibration	Linear
Accuracy (pH)	±0.01
Temperature Compensation	ATC and MTC
Dimensions (L x W x H)	22.7 x 14.7 x 7 cm (9 x 5.7 x 2.7 in.)
Display Type	LCD
Voltage	120/240 V
Resolution (mV)	1mV
Frequency	50/60 Hz
Temperature Range (English)	32°F to 212°F
Weight (English)	1.4 lb.
Resolution (Temperature)	0.1°C
Temperature Range (Metric)	0°C to 100°C
Range (mV)	2000 to 2000
Inputs	BNC, Cinch, NTC 30kiloOhm sensors
Accuracy (Temperature)	0.5°C
Weight (Metric)	0.63 kg

Mettler Toledo™ pH Meter SevenDirect SD20

The SevenDirect SD20 is an accurate and flexible benchtop meter for the determination of pH and ORP. The instrument is the replacement of the SevenCompact and is delivered with an EasyPlace sensor arm.

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Pricing & Availability
Specifications

Memory	2000 Standard Measurements
Resolution (pH)	0.001, 0.01, 0.1
Accuracy (pH)	0.002
Dimensions (L x W x H)	195 x 205 x 65 mm
Data Management Details	PC, Printer, USB Stick
Display Type	TFT, 7 in. Color
IP Rating	IP54
Temperature Range (English)	-22°F to +266°F
Weight (English)	1.9 lb.
Resolution (Temperature)	0.1°C
Temperature Range (Metric)	-30°C to +130°C
Range (mV)	-2000 to 2000 mV
Accuracy (Temperature)	±0.1°C between 0°C and 100°C
Weight (Metric)	850 g

METTLER TOLEDO™ SevenExcellence™ S400 Benchtop pH Meter

The S400 meter measures pH, redox/ORP, and ISFET. It can be expanded with additional modules to measure conductivity, resistivity, DO, BOD, ISE, salinity, and TDS. It has an intuitive touchscreen, the ability to create measurement shortcuts, and can export data to a printer, Excel, or LIMS system.

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Pricing & Availability
Specifications

Accuracy (mV)	±0.1
Resolution (Conductivity)	0.001 to 1
Range (Conductivity)	0.001μS/cm to 2000mS/cm
Resolution (pH)	0.001, 0.01, 0.1
Range (pH)	-2 to 20
Accuracy (pH)	±0.002
Display Type	TFT
Resolution (mV)	0.1/1mV
Outputs	USB, RS-232, Ethernet
Data Points	20000
Calibration Points (pH)	Max. 5 points, 8 pre-defined and 20 user-defined buffer group
Resolution (Temperature)	0.1°C
Temperature Range (Metric)	-30°C to +130°C
Range (mV)	-2000 to 2000
Accuracy (Temperature)	±0.1°C
Calibration Points (Conductivity)	13 pre-defined and 20 user-defined standard

Mettler Toledo™ FiveEasy™ Plus FP20 pH/mV Meters

Compact, benchtop meter provides high quality pH/mV measurements with simple click of a button.

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Pricing & Availability
Specifications

Accuracy (mV)	±1
Memory	200 measurements, current calibration
Resolution (pH)	0.01, 0.1
Range (pH)	-2.00 to 16.00
Calibration	Linear/Segmented
Accuracy (pH)	±0.01
Temperature Compensation	ATC and MTC
Dimensions (L x W x H)	22.7 x 14.7 x 7 cm (9 x 5.7 x 2.7 in.)
Data Management Details	RS232, USB
Display Type	LCD
Voltage	120/240 V
Resolution (mV)	1mV
Frequency	50/60 Hz
Temperature Range (English)	23°F to 221°F
Weight (English)	1.4 lb.
Resolution (Temperature)	0.1°C
Temperature Range (Metric)	-5°C to +105°C
Range (mV)	2000 to 2000
Inputs	BNC, Cinch, NTC 30kiloOhm sensors
Accuracy (Temperature)	0.3°C
Weight (Metric)	0.63 kg

Mettler Toledo™ FiveGo™ F2 pH/mV Meters

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

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Pricing & Availability
Specifications

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

Mettler Toledo™ MP Portable pH Meters

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Mettler Toledo™ pH Meter SevenDirect SD20 Greener ChoiceOffers one or more environmental benefits itemized in the U.S. FTC “Green Guides.”Learn More

Mettler Toledo™ pH Meter SevenDirect SD20