LED Indication: “On” when ambient humidity is higher than the set value. Casing in VO self-extinguishing, shockproof thermoplastic material. Unit weight 0,16 Kg. Electric featuresPower supply: 230Vac 50Hz. Maximum dissipated power 2VA. Contacts rating: 6(3)A 250Vac. Type of action: 1B (micro disconnection)Voltage-free switching contacts.