PH/CM-28AY Portable PH & Conductivity Meter


Product Code: 00362
Brand: Conductivity Meter

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  1. Large LCD screen with controllable white backlight.
    2. Built-in microprocessor chip has Intelligent functions such as auto calibration, ATC, data storage, function settings, auto
    diagnosis, auto power off, and undervoltage prompt, etc.
    3. Auto recognition of 13 buffers with three kinds of options: Europe & USA, NIST.
    4. Can set up pH measurement modes of high purity water and ammonia added pure water.
    5. Auto recognition of 8 conductivity standard solution with 2 kinds of options: Europe & USA.
    6. Adopt advanced conductivity measurement technology, one point calibration of conductivity electrode with constant K=1
    can meet the measuring accuracy requirements for test 0.5μ S/cm ~ 200mS/cm.
    7. Can switch between conductivity, TDS, salinity and resistivity. Multinomial calculation for TDS and salinity to ensure the conversion precision of the full scale.
    8. Conductivity mode has the function of non-linear temperature compensation for high purity water.
    9. Grade IP57 and equipped with suitcase for outdoor purpose.


PHMeasuring range



0.1/0.01 pH


Meter:±0.01pH; Overall: ±0.02pH

 Input impendance

≥1×1012 Ω


±0.01 pH/3h

 Temp. compensation range

(0~100)℃ (Auto/manual)

mVMeasuring range (mV/ORP/EH)

-1999mV ~ 0 ~ 1999mV




±0.1% FS

ConductivityMeasuring range

Conductivity: (0.00~19.99)μS/cm









0.01/0.1/1μS/cm; 0.01/0.1 mS/cm


±1.0% FS, Overall:±1.5% FS

 Temp. compensation range


 Electrode constant

0.1 / 1 / 10 cm-1

Other Technical
Data storage

200 sets


Two AA batteries (1.5V x2)

 Shipping size/G.W.


Working ConditionAmbient temperature

5~35 ℃(0.01grade)

 Ambient humidity


 IP grade

IP57 Dustproof and waterproof

Meter Kits1) pH & Conductivity meter
 2) pH composite electrode
 3) Temperature electrode
 4) Conductivity electrode (K=1)
5) pH buffer solution
 6) Suitcase 


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