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best fire detectors fire alarm smoke detector safety designer smoke alarms
Main feature
1. Easy installation and maintenance
2. Light Labyrinth with High stability & High accuracy
3. High adaptability to the ambient,with dustproof,mothproof,moisture proof and anti-white light function
4,This is 4 wire type (2 wire please click here!)
5. DC 9-35V wide voltage operating range
6.Low standby surrent
7. Power supply non-polarized input
8. Twin LED for 360 degree visual
9. Flashing LED power indicater
10. Alarm output is relay output
11. Metal shield, anti-electromagnetic interference
12. Two-year limited warranty
13. Suit for detect the smoke in house, shop, hotel, restaurant, office building, school etc...
Technical Specification
| Model | SR-811-4 |
| Input voltage | DC9~35V |
| Static current | 500uA(replay N.O.) |
| 12mA(relay N.C.) | |
| Alarm current | 18mA(replay N.O.) |
| 10mA(relay N.C.) | |
| Alarm indication | red LED on |
| Operating temperature | -10~+50°C |
| Humidity | 0%~95%RH(No condensation) |
| Alarm output | relay output |
| Contact rating | 0.5A@DC28V |
| Sensitivity | 0.5dB/m(±0.1dB/m) |
| Dimension | 103*53mm |
Detailed pictuers
* Express(UPS, DHL, Fedex, EMS, etc) is available.
* Sea and Air delivery is available
* welcome your agent to deal with our products .
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 smoke alarm than MOQ?
A: Yes, you can and the final price will depend on your quantity.
Q3. Can I print my logo on the smoke alarm?
A: Yes, please contact us.
Q4, What"s the lead time when I place bulk 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.
Tel: 86- 755-89571625
skype :cnsumring03
TradeManager:sumring
Website: http://www.sumring.com