Model  FC-28-J  Quantity  1  Color  Blue  Material  PCB  Features  Nickel plating, widen sensor area, high electric conduction performance, anti-rust. Wide range detection, relay closing when the soil humidity higher than setting value, and break when lower than setting value. With delay function, delay time: 3~5s, when humidity value reach critical point, relay shows flash strobe. With power indicator and indication of relay close.  Specification  Power supply: DC 12V, input current > 50mA  Application  Widely use in garden, household flowerpot, etc. Great for Arduino DIY.  English Manual/Spec  Yes  Packing List  1 x Soil humidity sensor module     1 x Soil sensor     2 x Dupont cables (20cm)<img src="//112.74.112.28/down/products/192987/192987_000.jpg">