... fault indicator,blocking magnet,Led light,voltage sensor,temperature and humidity controller,etcIn-door High ... .Function1. Via shield cable and low volume capacitive coupling electrodes,having safest testing voltage.2. ... ,having more longer life time.4. The capacitance of the auxiliary points is 7A,250 V ... ;35-35kV. Remark: 1. General using capacitance of sensor 2.When you order our products, pls ...