Specifications

IP67 Waterproof pH testers with Large dual-level LCD that
displays pH and temperature (°C or °F).
The large display shows readings in an extended range from
-2.0 to 16.0 pH (pH56 has a 0.01 pH resolution) and simul-
taneously shows temperature from -5.0 to 105.0°C or 23.0 to
221.0°F.
They have a stability indicator and hold function that freezes
the display for easy and accurate recording.
The large display also has graphic symbols to guide you
through all operations.
Complete with a temperature probe for faster and more pre-
cise temperature measurement they compensate automati-
cally for temperature.
Calibration is made automatically in 1 or 2 points with
memorized standard and NIST buffer sets. Auto power OFF
saves battery power after non-use.
The double-junction electrode can be replaced in a very fast
and simple way!
The modular design allows easy electrode and battery
replacement.
pH55/pH56
Pocket-size pH/Temperature Meters
with replaceable electrode
Accessories
Mi56P Replaceable electrode for pH55
& pH56
M10004B pH 4.01 buffer solution 20 mL
sachet (25 pcs)
M10007B pH 7.01 buffer solution 20 mL
sachet (25 pcs)
M10010B pH 10.01 buffer solution 20 mL
sachet (25 pcs)
MA9004 pH 4.01 buffer, 230 mL bottle
MA9006 pH 6.86 buffer solution, 230 mL bottle
MA9007 pH 7.01 buffer solution, 230 mL bottle
MA9009 pH 9.18 buffer solution, 230 mL bottle
MA9010 pH 10.01 buffer solution, 230 mL bottle
MA9015 Electrode storage solution, 230 mL
MA9016 Electrode cleaning solution, 230 mL
M10000B Electrode rinse solution, 20 mL
sachet (25 pcs)
Ordering Information
pH55 is supplied complete with protective cap, 20 mL,
pH 4.01 and pH 7.01 sachets of calibration solution, car-
ton box, batteries and instructions.
pH56 is supplied complete with protective cap, 20 mL pH
4.01 and pH 7.01 sachets of calibration solution, carton
box, batteries and instructions.
Specifications
pH55 pH56
Range pH -2.0 to 16.0 pH -2.00 to 16.00 pH
Temp -5.0 to 60.0°C / 23.0 to 140.0°F -5.0 to 60.0°C / 23.0 to 140.0°F
Resolution pH 0.1 pH 0.01 pH
Temp 0.1°C / 0.1°F 0.1°C / 0.1°F
Accuracy pH ±0.1 pH ±0.05 pH
(@25°C) Temp ±0.5°C / ±1°F ±0.5°C / ±1°F
Typical EMC pH ±0.1 pH ±0.02 pH
Deviation Temp ±0.3°C / ±0.6°F ±0.3°C / ±0.6°F
Calibration automatic, 1 or 2 points automatic, 1 or 2 points
with 2 sets of memorized buffers with 2 sets of memorized buffers
(pH 4.01, 7.01, 10.01 (pH 4.01, 7.01, 10.01
or 4.01, 6.86, 9.18) or 4.01, 6.86, 9.18)
Temperature Compensation automatic, from -5 to 60°C automatic, from -5 to 60°C
Probe Mi56P (replaceable) Mi56P (replaceable)
Environment -5 to 50°C / 32 to 122°F; max RH 100% -5 to 50°C / 32 to 122°F; max RH 100%
Battery Type 4 x 1.5V; IEC LR44, A76 (included) 4 x 1.5V; IEC LR44, A76 (included)
Battery Life approx. 300 hours of use approx. 300 hours of use
Auto-off after 8 minutes of non-use after 8 minutes of non-use
Dimensions 200 x dia 38 mm 200 x dia 38 mm
Weight 100 g 100 g
Temperature Sensor
The pH55 and
pH56’s exposed
temperature sensor
provides fast
response time, and
its proximity to the
pH electrode guar-
antees much more
accurate temperature
compensated readings.
Replaceable electrode
Replace the electrode in a fast and simple way yourself!
Just unscrew the plastic ring on the top of the elec-
trode and replace the electrode with a
new one.
pH/ORP
14
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