COM-80 - EC Meter - HM Digital Grow Lighting & Bulbs/Reflectors Try to ensure there is

Try to ensure there is room for air to move between to stop moulds and bacteria from forming

digital display

one-part fertiliser for soil amended with lime

Controls AC & EC fans

anything bigger would probably be pushing it

COM-80 - EC Meter - HM Digital Grow Lighting & Bulbs/Reflectors Try to ensure there isThe COM 80 is easily the most advanced economically priced, reliable EC TDS meter on the market. With its versatility and durability, it is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more. Features: Measures electrical conductivity (EC), total dissolved solids (TDS). Excellent for nutrient testing Four scales: EC: S, mS; TDS: ppm, 0. 5 (NaCl) & 0. 7 (442)