Our main product include Hand Held Refractometer, digital refractometer, thermometer, pH meter, conductive meter, TDS meter, electrode, Tachometer，thickness meter, sound level meter, humidity meter, moisture meter, Lux meter, spectrophotometer, and Surveying Instruments etc.
Specifications:
Features:
- ph meter,tds meter,ec meter
Ordering information:
- Minimum Order: Negotiable