> TOA-DKK
Japan

TOA-DKK has been making instruments for more than 50 years. The product range includes instruments for measurement of pH, ORP, conductivity, resistitivity , salinity, oxygen (DO), specific ion, etc.

 
Portable pH / ORP Meters


HM-20P
RM-20P
HM-21P
  • Economy and High Performance
  • Large LCD Display
  • IP67 Water Proof
  • Auto Hold/ Interval Function
  • Clock Function
  • Automatic Temperature Compensation
  • W/ 3-in-1pH Sensor
  • Economy and High Performance
  • Large LCD Display
  • IP67 Water Proof
  • Auto Hold/ Interval Function
  • Clock Function
  • Automatic Temperature Compensation
  • W/ 3-in-1 ORP Sensor
  • Measure pH and ORP
  • Large LCD Display
  • IP67 Water Proof
  • Auto Hold/ Interval Function
  • Clock Function
  • RS-232C and Analog Output
  • External Printer Connectable
  • Automatic Temperature Compensation
  • W/ "Calib. memo" pH Sensor
Specification
Model HM-20P RM-20P HM-21P
Range pH: 0.00 ~ 14.00 ORP: 0 ~ +/-1999mV

pH: 0.00 ~ 14.00
ORP: 0 ~ +/-1999mV

Repeatability +/-0.02 pH +/-2mV pH: +/-0.02 pH
ORP: +/-2mV
Calibration Up to 3 points ..... Up to 3 points for pH
Temperater Range 0 ~ 99°C
TemperatureRepeatability +/-0.2°C
Data Storage 300 data
Power 2 x AA Batteries 2 x AA Batteries
or AC Adaptor

 
Portable Conductivity / Resistitivity / Salinity Meters


CM-21P
CM-21PW		  
  • Measure Conductivity, Resistitivity, Salinity and Temperature in One Unit
  • Large LCD Display
  • IP67 Water Proof
  • Auto Hold/ Interval Function
  • Clock Function
  • RS-232C and Analog Output
  • External Printer Connectable
  • Automatic Temperature Compensation
  • W/ "Calib. memo" Conductivity Sensor
  • Measure Conductivity, Resistitivity of Puer Water
  • Large LCD Display
  • IP67 Water Proof
  • Auto Hold/ Interval Function
  • Clock Function
  • RS-232C and Analog Output
  • External Printer Connectable
  • Automatic Temperature Compensation
  • W/ "Calib. memo" Conductivity Sensor
  
Specification
Model CM-21P CM-21PW
Range

Conductivity: 0 ~ 19.99S/m
Resistitivity: 0.05Ohm.m ~1MOhm.m
Salinity: 0 ~ 4%

 Conductivity: 0 ~ 19.99mS/m
Resistitivity: 0.05kOhm.m ~10MOhm.m
Repeatability +/-0.5%F.S. +/-0.5%F.S.
Calibration Cell Constant Calibration
Temperater Range 0 ~ 80°C
TemperatureRepeatability +/-0.2°C
Data Storage 300 data
Power 2 x AA Batteries or AC Adaptor

 
Portable Multi-parameter Meters

Portable Ion / pH Meter

IM-22P

 Portable Conductivity / pH Meter

WM-22EP
Simultaneous Display
of 2 parameters
  • Simultaneous Display of pH and Ion
  • Large LCD Display
  • IP67 Water Proof
  • Auto Hold/ Interval Function
  • Clock Function
  • RS-232C and Analog Output
  • External Printer Connectable
  • Automatic Temperature Compensation
  • W/ "Calib. memo" pH Sensor
  • Ion Sensor Sold Separately
  • Simultaneous Display of pH and Conductivity
  • Large LCD Display
  • IP67 Water Proof
  • Auto Hold/ Interval Function
  • Clock Function
  • RS-232C and Analog Output
  • External Printer Connectable
  • Automatic Temperature Compensation
  • W/ "Calib. memo" pH and Conductivity Sensor
Specification
Model IM-22P WM-22EP
Range

pH: 0.00 ~ 14.00
ORP: 0 ~ +/-1999mV
Ion: Depend on Specific Sensor

 pH: 0.00 ~ 14.00
ORP: 0 ~ +/-1999mV
Conductivity: 0 ~ 19.99S/m
Resistitivity: 0.05Ohm.m ~1MOhm.m
Salinity: 0 ~ 4%
Repeatability

pH: +/-0.02 pH
ORP: +/-2mV
Ion: +/- 1% +/-1digit

pH: +/-0.02 pH
ORP: +/-2mV
Conductivity: +/-0.5%F.S.
Calibration

pH: Up to 3 points
ORP: N/A
Ion: Up to 3 points

 pH: Up to 3 points
ORP: N/A
Conductivity: Cell Constant Calibration
Temperater Range pH: 0 ~ 99°C
ORP: 0 ~ 99°C
Ion: 0 ~ 45°C		 pH: 0 ~ 99°C
ORP: 0 ~ 99°C
Conductivity: 0 ~ 80°C
TemperatureRepeatability +/-0.2°C
Data Storage 200 data x 2 channels
Power 2 x AA Batteries or AC Adaptor

 
Portable Dissolve Oxygen (DO) Meters
  • Galvanic Cell Method
  • Large LCD Display
  • IP67 Water Proof
  • Auto Hold/ Interval Function
  • Clock Function
  • Salinity, Barometric Compensation
  • Automatic Temperature Compensation
  • W/ "Calib. memo" Dissolve Oxygen (DO) Sensor, 3m lead as standard, 5m or 11m are available as option
  • BOD measurement available by Optional BOD Sensor with built-in stirrer
Specification
Model DO-24P
Range

General: 0 ~ 19.99mg/L (0-199%)
High Range: 0 ~ 50.0mg/L (0-500%)
Repeatability +-0.02mg/L (+/-2%)
Calibration Zero/ Span Calibration
Temperater Range 0 ~ 50°C
TemperatureRepeatability +/-0.2°C
Data Storage 300 data
Power 2 x AA Batteries or AC Adaptor

 


DO-24P

 
 
 
Che Scientific Co. (Hong Kong) Ltd.
18/F, Unit D, Roxy Industrial Centre, 58-66 Tai Lin Pai Road, Kwai Chung, Hong Kong.
TEL: +(852) 2481 1323    FAX: +(852) 2418 1302
E-mail: sales@chescientific.com     Website: http://www.chescientific.com