Hanna Instruments GroLine PH/EC&TDS Combo Tester HI98131 pH Down Quick Cal Mode to calibrate

Quick Cal Mode to calibrate pH and EC/TDS with one solution

narrow band of frequency that allows for strong signal penetration through buildings and greenhouses

With NIDO ONE V2

Thanks to the wide beam optics and high light output

Hanna Instruments GroLine PH/EC&TDS Combo Tester HI98131 pH Down Quick Cal Mode to calibrateWaterproof Automatic temperature compensation Automatic calibration Replaceable pH electrode cartridge High accuracy graphite EC TDS probe Calibrate pH and EC with one solution Hanna Warranty: 1 year for meter, 6 months for probe Product Specifics: This is a slim, lightweight, and waterproof pocket sized meter that measures pH, conductivity (EC), total dissolved solids (TDS) and temperature. The meter operation is simplified with two buttons. One is