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Door sensor alarm


2018-2-4 15:41:24
Introduction

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Powerful features of our Door sensor alalrm are as follow:

1.Use 3.6V factory lithium battery,can be use more than 10 years;

2.Have TEST button and LED light,provide 2 ways to check whether power is enough;

3.The length of line can be customized;

4.Sensive:the alarm will ring once the distance between alarm unit and magnet sensor over 15mm.


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