SOAN 03DS (Wireless Sensor open the metal doors). For massive metal doors (garages, warehouses, metal shutters in tents / stores, massive doors). This reed switch is protected against magnetic interference, which may appear in the massive metal door.
Technical characteristics:
- Trip threshold - 3.0 - 5.0 cm
- Supply voltage 9-12 V (23A battery)
- Hours Battery - up to a year (when triggered 3 times a day)