Door and window alarms door contact sensor switch

Door and window alarms door contact sensor switch

The SR-M51 door contact switch is a peripheral security sensor that lets an alarm system know whether a door is opened or closed. When a door /window are opened, the door contact switch will activate and let the system know about the situation. The system will then respond based on the programming settings for that zone.

Technology parameter:

here are the real shot of the door contact switch：

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（door contact switch/magnetic safety switch） etc. SUMRING obtained ISO9001 quality system certificate and every year invested 20% of earned into Research & development.

FAQ

Q1:Are you manufacture or trading company?
A1:We are a professional manufacture specialize in fire alarms and home security products

Q2:What is the moq of the combustible gas leak detector?
A2:As usual,there is ready stock for our regular & hot selling models.
So any order quantity is welcome.

Q3:Can I customize LOGO and customized functions?
A3:Yes you can. Packaging, products, instructions can be printed logo. and functions we have professional R&D team to support best service.

Q4:How about the quality of your products?
A4:Our raw materials are purchased from qualified suppliers.

Q5:How long is the warranty time of the products?
A5: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.