Waterproof meter. Simple calibration. Complete with batteries and calibration fluid sachets.
Waterproof and floating case. Automatic calibration. Complete with batteries, battery life indication and calibration fluid sachets. This new unit has the added advantage of a replaceable pH electrode for longer life.
Now two units. A weatherproof sensor, display unit is positioned in the greenhouse. This "talks" to a Main unit with a large LCD display by wireless transfer 418 Mhz up to 30mtrs away. This displays temperature and relative humidity being upgraded every few seconds. Max & Min Temperature in C or F. Range -5 to + 50C and relative humidity 25% - 95%.Highest and lowest stored and displayed and reset anytime. Batteries included.Alarm FacilityAlarms can be set on the main unit to warn of high or low temperatures at the sensor unit. A Must for the Orchid - Tropical Grower.
Two additional Units can be added and information transmitted, and read on the original Main Unit.
