Pen Type Salinity & Temperature Meter Atc Nacl Salt Water Quality Tester For Saltwater Aquarium Hydroponics Food

MEASURING RANGE: 0~9999 ppm or 10.0ppt~100.0ppt or 0.0%~10.0% or 0.950~1.080 (S.G.) based on NaCl with ±%F.S ±1 digit / ±0.5°C Accuracy DISPLAY: Dual Temperature and Salinity in four measurement units (ppm ppt % S.G) / 30 x 18mm LCD Size APPLICATION: Salinity measurement in fish pond tank aquariums laboratories food processing hydroponics Aquaculture and other water monitoring facilities. FEATURES: Waterproof IP65 / One touch calibration / Auto power off and Non-Sleep mode disable / Multi points calibration POWER SUPPLY / SENSOR : 4 x LR44 button batteries