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PIR sensor wireless curtain effect for wireless alarm FR575
![](https://store.open-electronics.org/image/cache/catalog/data/SicurezzaeVideosorveglianza/8100-FR575TENDAPIR_main-400x400.jpg)
PIR sensor curtain effect for doors and windows. Designed to be used with the GSM / SMS / RFID wireless burglar alarm unit (FR575), it has a very narrow detection angle (15°) which allows you to discriminate the movements in the room and detect only those near doors and windows. When it detects motion, the internal 433 MHz transmitter sends a coded signal to the wireless control panel, triggering the alarm. It has a low battery signal