HM Digital COM-300L pH EC TDS Meter - Waterproof 5-in-1 Professional Tester quick check meter IP-67 Waterproof: Fully submersible and

IP-67 Waterproof: Fully submersible and floats—perfect for field testing and harsh environments

Heavy Duty & Safe

and water quality applications

and water treatment facilities that demand both precision and documentation

and standard pH electrodes

HM Digital COM-300L pH EC TDS Meter - Waterproof 5-in-1 Professional Tester quick check meter IP-67 Waterproof: Fully submersible andProfessional 5 in 1 Waterproof pH EC TDS Salinity Temperature Meter The HM Digital COM 300L is a professional grade waterproof combo meter that measures pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity, and Temperature in a single rugged instrument. With IP 67 waterproof rating, digital calibration, and replaceable probe technology, this meter delivers lab quality results for hydroponics, water treatment, aquaculture, pools,