315mhz 433mhz wireless doorsensor anti-theft emitter alarm system with magnetic strip
1. Check if the ic code is right.
2. Reduce the distance between the host and the emitter.
3. Avoid the reinsforced concretewall and appliances between the host and the emitter.
4. Do not mount on the position which is rainy or wet.
1 x door window magnet sensor
2 x double-sided stickers
1 x 12v 23a battery
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