- Strong anti-interference
- Low power consumption
- Idea for home, office, factories, guest rooms in hotel etc..
- Open the battery compartment cover of the receiver and load 4 x R14/C batteries (Not included)
- Fix the transmitter on the wall near the door with screws or adhesive tapes.
- Avoid placing transmitter near high temperature moist area, metal or electromagnetic surfaces
- Please replace the battery if the transmitter is not functioning properly
- Package Dimensions10.5x5x17cm