Now it is V1.2 Version Supports Gravity 3-Pin interface;Supports Analog output Applications For Garden plants,Moisture detection,Intelligent agriculture Operating Voltage: 3.3 ~ 5.5 VDC;Output Voltage: 0 ~ 3.0VDC Interface: PH2.0-3P;Dimension: 98mm * 23mm (3.86in x 0.905in)