HM Digital Waterproof pH Meter PH-200 ac-dehumidification-humidification This expands the list of

This expands the list of devices compatible with these controllers and enables them to provide intelligent programming functions like climate triggers

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4 x 10" (4 x 25 cm)

Holds up to 20 lbs of substrate and 10 lbs of grain (approx 20 qts)

UV+IR light

HM Digital Waterproof pH Meter PH-200 ac-dehumidification-humidification This expands the list ofHM Digital Waterproof pH Meter, PH 200 The PH 200 is a professional grade pH Temp meter ideal for all pH testing water. With its advanced microprocessor it provides highly accurate dependable readings in such applications as hydroponics, purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, and agriculture.