High temperature photoelectric 9v battery operated optical heat sensitive detector sensor with smoke alarm
SR-820DHS Independent Photoelectric smoke & heat alarm
Battery operated or AC power
Comply with BS EN54-4; UL539
Photoelectric sensing technology
Low Battery warning
Low 85dB Alarm
Instant Test Button
57 ºC(135ºF)Fixed Rate Temperature Sensor
|Operating voltage||9V battery|
|Horn output||85dB at 10ft|
|Humidity range||5%~95% relative humidity (RH)|
|Smoke alarm point||2.06%/ft|
Shenzhen SUMRING Technology Co. Ltd is a Hi-tech enterprise specialized in the research & development of security and fire alarm products, including PIR detector, smoke detector, gas leakage detector, Carbon Monoxide detector, fire alarm bell/strobe siren, manual call point, magnetic contact ,Bluetooth module etc
Q1. Can I get one sample for test before big order?
A: Sure,you can. Please leave a message we will contact you soon.
Q2. Can I get the item less than MOQ?
A: Yes, you can and the final price will depend on your quantity.
Q3. Can I print my logo on the item?
A: Yes, please contact us.
Q4, What's the lead time when I place order?
A: Small Qty order needs5-7 working days, big Qty order usually needs 7-20 working days after payments arriving. That's depends on order Qty.
Q5,How long is your products quality warranty?
The warranty period is 2 years from the factory, if there are individual quality problems, we will replenish the customer in the next batch of orders
Our contact info:
Tel: 86- 755-89571625
Fax: 86- 755-89571207