Waterproof Digital Refractometer - Brix 0 to 60% Grow1 5' Steel Stake 0℃ 50~104°F LCD Size 30(L)

0℃ 50~104°F LCD Size 30(L) *1 8 (W) mm Operating Temperature 0~40℃ Operating RH% Humidity ＜85% Storage Temperature 0~40℃ Storage RH% Humidity ＜80% Sensor Response Time ＜30 seconds Sensor Warmup time ＜60 seconds after power up Sensor Life Time >6 months (with good maintenance) Meter Size 176(L) * 39(W) * 39(H) mm Weight ~265g Battery 3

such as soil preparation and seed sowing

SOLUBLE POTASH (K2O) 4

The activated charcoal features an enhanced surface area with a higher adsorption rate to help extend the time between refills

If your application requires a deeper vacuum

Waterproof Digital Refractometer - Brix 0 to 60% Grow1 5' Steel Stake 0℃ 50~104°F LCD Size 30(L)This refractometer is housed in a protective, rubberized IP65 waterproof case to safeguard the electronics from wet environments and makes for easy cleanups. Measure samples as small as 1 ml, in the field with laboratory accuracy. Sample temperature is initially displayed on the large LCD followed by the measurement results. The sophisticated microprocessor provides automatic calibration, automatic temperature compensation and automatic shutoff (after