Features reliable temperature stable semiconductor technology with calibration checks. Operates on one 9V battery ( included) . Gypsum blocks are cast around stainless steel electrodes. Range is 0.1 to 15 bars tension. 3-1/ 2" Digital display has 0-100 arbitrary scale. Meter readings can be converted into terms of available soil moisture or soil moisture tension by referring to calibration curves found in operating instructions. Carrying case, battery, and instructions included.
Order gypsum blocks separately.