smoke heat detector
1.Self-test button
2.Low-battery warning
3.LED operation indicator
4.CE,RoHS certified

UL Standard Stand-alone smoke heat detector JB-SH04 

Main Features

1.Detect both smoke particles and heat in single unit

2.Operated with single 9V DC block battery with temporary silence function

3.Single 9V DC block battery for power backup

4.Battery drawer design for easier battery replacement

5.Extra loud alarm sound over 85db at 10 feet(3m)

6.Self-test button

7.Battery missing indicator

8.Low battery warning indicator

9.LED operation indicator

10.CE abd RoHS certified

11.Complies with EN14604,EN54-5 and UL standard

12.Dimensions: Ø107x 38MM