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Showing results for tags 'replacing battery'.
Hi, I have just replaced the battery of my door sensor which used over a year. After replacing, I can't get any reading of my door sensor. Then I force removed the device and I can't add the door sensor to my HC2 anymore. I also reset the sensor by clicking both TMP at the same time when placing the battery, but the LED just blinked 8 times in 5 sec, this makes me feel weird. The sensor does react when it sense the magnet around. Does anyone know how to add to HC2 in my case? Thanks a lot. Regards, Brendan