ISFET pH meter

Model:  S2K-712  S2K-922

The Advanced ISFET sensor technology will make rugged modular design structure, eliminate the problems of fragile glass electrodes and be free from care of 2-, or 3-point calibration.
Features
Non-glass, unbreakable advanced ISFET pH-sensors
On chip temperature sensor
Display pH and temperature
Measure samples as small as one drop
Replaceable reference electrode
Waterproof
Stable readings in seconds, fast response time
Convenient one-point calibration, be free from care of 2-, or 3-point calibration
Automatic temperature compensation (ATC)
Automatic buffer recognition
Over 150 hours life on one watch battery
Automatic power off
Error messages alert you to incorrect calibration or meter failures
Specifications:
Model S2K922
Sensor Silicon chip ISFET
On chip Temp. sensor
Range 2∼12pH  0∼50℃
Functions One-point (2-point) calibration, automatic
,temperature compensation, waterproof
automatic power off, error massages
Resolution 0.01pH　1℃
Accuracy ±0.05pH ±1℃
Operating Temp. Range 5∼40℃
Measuring
Temperature Power ON:
"pH/temp."
will flash in turn
Waterproof IP67
Calibration 1 point with 3 points auto-cal. memory,
Power 3V
CR2032×1
Battery life 150 hours (approx)
Comparison:
Model S2K712 (S2K922) KS701,723
Range 2∼12pH  0∼50℃ 2∼12pH
Display pH and ℃ 0nly pH
Accuracy ±0.05pH ±1℃ ±0.2pH
Operating Temp. Range 5∼40℃ 5∼40℃
Temperature Compensation Automatic none
Calibration 1 point with 3 points auto-cal. memory, 2.0pH-12.0pH ( Optional 2 points ) KS701:1 point
KS723:2 points
Power CR2032 X 1 CR2032 X 2
The Standard Reference Electrode R2K712
The replaceable reference electrode R2K712 is new model which is possible to make one-drop measurement without any contamination and improve the pH-responses of ISFET-pH meters. The R2K712 is compatible with the MiniLab pH meters of IQ120, IQ125 and IQ128 only. ，

Order Information:

• S2K712(KS701 pH 6.9   Self One  point Calibration)

• S2K922( KS723 pH 7.0, pH4.0, pH 10.0  Able to choose 2 point calibration )

• Reference Electrode : R2K712