Measure Method :

pH: Glass electrode
Conductivity: 2 electrodes
Display: LCD  (Dual Channel mode)
Measurement channel:

Channel 1: Electric conductivity
Channel 2: pH, ORP
Meas. Range:

+ When using pH electrode

 pH: 0.00 - 14.00
ORP: 0 - ± 2000mV
Temperature: 0 - 100.0ºC

 
+ When using EC electrode:

 EC: 0.1mS / m - 10 S / m
 ER: 0.1Ω · m - 10kΩ · m
 Salinity: 0 - 4.00%
 Temperature: 0 - 80.0ºC
 
+ Display Range:

pH: -2.00 - 16.00
ORP: 0 - ± 2200mV
Conductivity:
0 - 200.0μS / m
0 - 2.000mS / m
0 - 20.00mS / m
0 - 2.000S / m
0 - 20.00S / m
0 - 200.0S / m

Resistance:
0.005-2.000Ω · m
0-20.00Ω · m
0-200.0Ω · m
0-2.000kΩ · m
0-20.00kΩ · m
0-200.0kΩ · m
0-2.000MΩ · m
Salinity (NaCl): 0 - 4.04%
Temperature: -5 - 110.0ºC

* For each display range, the conductivity / resistance varies according to the cell used
 
Change the conductivity / resistance unit: It is possible to convert the SI unit (S / m, Ω · m) to (S / cm, Ω · cm).

Repeatability:
PH : ± 0.02pH
ORP: ± 2mV
Electrical conductivity: ± 0.5% FS
Resistance: ± 0.5% FS
Wearing: ± 0.5% FS
Temperature: ± 0.2ºC
Temperature Compensation: 

pH: Automatic / Manual
Conductivity / Resistance: Switch between Automatic / Manual / None Temperature
Compensation method: linear method
Reference temperature: 25ºC
Temperature cofficient(optional setting): 0-9.99% ( not apply to ORP)

 
Calibration:

pH: 3 calibration points
Electrical Conductivity: Cell constant calibration

Data Memory: 1000 data points
Automatic Hold Function: Provided

Interval Memory Function: Provided( The interval can be specified between 1 second - 99 minutes 59 seconds or 2 seconds - 99 hours 59 minutes)

Clock Function: Provided
Print Function: Can be connected to the ESP-P30 printer (optional)

RS-232C Interface: 

Connection Device: PC or  external printer ESP-P30(optional)

Analog Output:

Channel 1 - Quantity: 3 - Measured value, temperature, and measuring range (conductivity / resistance only)
Channel 2 - Quantity: 2 - Measured value and temperature

Waterproof Construction: IP67 (can be immersed in water at a depth of 1m and within 30 minutes)
Perform Compensation Temperature: 0-45 ° C
Power Source: AA alkaline battery / Nickel-Hydrogen battery (2 pieces) or AC adapter (6VA option), use 600 hours
Power consumption: 0.009W (when using 3V battery)
Dimensions: 68 x 35 x 173mm
Weight: 300 g

This product is used to measure electrical conductivity, resistance, salinity, pH, ORP, temperature in laboratory