Product features:
*Built in microprocessor chip with intelligent functions such as automatic calibration, automatic temperature compensation, data storage, function settings, self diagnostic information, automatic shutdown, and low voltage display
The patented three composite fluoride ion electrode is composed of an ion electrode, a reference electrode, and a temperature electrode. It has stable potential, fast response, and is easy to use without stirring or adding reagents. It can directly measure the fluoride ion concentration of the sample and switch between mg/L, ppm, and pF concentration units
Technical parameters:

Type	Parameter values
Fluoride ion
measuring range	1.00～5.00pF 0.19～1900mg/L
Display units	mg/L, ppm, pF
Accuracy	±0.01 pF
Temperature compensation range	0~80 ℃ (automatic)
pH
measuring range	0～14.00pH
resolution	0.1/0.01pH
accuracy	±0.01 pH
Temperature compensation range	0-100 ℃ (automatic)
ORP
measuring range	±1999mV
accuracy	±0.1%FS
Storage	200 sets
Storage Content	Number, measurement value, measurement unit, and temperature value
power supply	Two AA batteries (1.5V × 2)
Size and Weight	65×120×31mm/186g
IP GRADE	IP57
Standard configuration	Host+F501-S fluoride ion electrode+201T-S pH electrode+ Fluoride ion standard solution+pH correction solution+carrying case+instruction manual