HM Digital Waterproof pH Meter PH-200 Pots and Containers Mini-Blocks sit in a tray

Mini-Blocks sit in a tray (flat) without support for easy starting of seeds and cuttings

increase efficiency of water use and drought tolerance

Operating Voltage: 8 to 15V

Vermicrop Organics VermiBlend Premium Soil Amendment was created for the organic gardener

Rigid shape does not fold over when watering or filling

HM Digital Waterproof pH Meter PH-200 Pots and Containers Mini-Blocks sit in a trayHM 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.