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Hands-free monitoring and dosing of solution pH levels
The Ona Breeze Dispenser Fan provides odor neutralization for rooms up to 1
Master controller EL1 & EL2 Gen 2
0EC (60CF or 4200ppm)
Air-pump for aquariums
COM-100 EC/TDS/Temp Combo Meter - HM Digital Measuring Tools/Calibration Hands-free monitoring and dosing ofThe COM 100 is a professional grade level EC TDS Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. Features: Measures electrical conductivity (EC), total dissolved solids (TDS), salinity and temperature. UPGRADED: Four scales: S, mS, ppm 0. 5
US$ 549.98
US$ 30.12
US$ 189.95
US$ 36.95
