YR01835 Benchtop pH / Ion / Conductivity / Dissolved Oxygen Meter



  • 6.5-inch LED screen with concise and friendly-user interface.
  • Built-in microprocessor chip has Intelligent functions such as automatic calibration, ATC, data storage, clock display, USB output, function settings, wireless printing, and self-diagnosis information, etc.
  • It supports wireless Bluetooth printing. Real-time data transfer to mobile phone by Bluetooth is optional.
  • Smart electrode status display to ensure accurate use.
  • Omron long lasting and light touch key can be used more than 100,000 times.
  • Can store 1000 sets of test data, which can be saved and transferred to USB memory stick and opened with Excel.
pH mode
  • Auto recognition of 25 buffers with three kinds of options: Europe & USA, NIST and China. Support 1, 2, 3 point calibration.
Conductivity Mode
  • Ability to switch among conductivity, TDS, salinity and resistivity. Multinomial calculation for TDS and salinity to ensure the conversion precision of the full range.
  • Auto recognition of 8 conductivity standard solution with 2 kinds of options: Europe & USA, and China.
DO Mode
  • It has functions of ATC, auto salinity compensation and auto pressure compensation.
  • Polarographic DO electrode, short polarization time (3-5 minutes).
Technical Specifications
Model YR01835
Measurement range (-1.999 ~ 19.999)pH
Resolution 0.1/0.01/0.001 pH
Accuracy Electrode: ±0.002 pH, Meter: ±0.01 pH
Input current ≤1×10-12 A
Input impedance ≥3×1012 Ω
Stability ±0.002 pH/3h
Temperature compensation (0 ~ 100)ºC, auto or manual
Measurement range -1999.9mV ~ 0 ~ 1999.9mV
Resolution 0.1 mV
Accuracy ±0.03% FS
Measuring range
TDS:(0 ~ 100)g/L
Salinity:(0 ~ 100)ppt
Resistivity:(0 ~ 100)MΩ·cm
Resolution 0.01/0.1/1μS/cm; 0.01/0.1mS/cm
Accuracy Electrode: ±0.5% FS, Meter: ±0.8% FS
Temp. compensation range (0 ~ 50)ºC, auto
Electrode constant 0.1/0.5/1/5/10/50/100 cm-1
Reference Temp. 25ºC,20ºC,18ºC
Measuring range (0 ~ 20.00)mg/L(ppm) (0 ~ 200.0)%
Resolution 0.1/0.01 mg/L(ppm) 1/0.1 %
Accuracy Electrode: ±0.10 mg/L, Meter: ±0.40 mg/L
Response time ≤30s (25ºC, 90%response)
Residual current ≤0.1 mg/L
Temp compensation (0 ~ 45)ºC (automatic)
Salinity compensation (0 ~ 45) ppt (automatic)
Pressure compensation (80 ~ 105) kPa (automatic)
Automatic calibration Air saturated by water; water saturated by air
Electrode type Polarographic
Range (-10 ~ 110)ºC
Resolution 0.1ºC
Accuracy 5 ~ 60ºC:±0.4ºC Others: ±0.8ºC
Other Parameters
Display 6.5-inch LED screen
Data storage 1000 sets
Power 12V (110-220, 50-60Hz adapter)
Communication interface USB, RS232, Bluetooth
Dimensions & Weight 240×170×70mm/600g
Working Conditions
Temperature 15 ~ 30 ºC
Humidity ≤85%
IP grade IP54

Additional information

Weight 3 kg
Dimensions 47 × 43 × 8 cm

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