It consists of photoelectric system, signal processing identification circuit and alarm circuit. The infrared scatters on the surface of the smoke when the smoke enters the darkroom of the detector, then the photoelectric diode receives the scattered light and generates the photoelectric signal current. The photoelectric signal generates the alarm signal after being processed by the identification circuit, accordingly the purpose of alarming is achieved.
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SD-202 3V Battery stand alone fire security detector smoke alarm SD-202 2 wires smoke detector is our featured factory price smoke detector with 3V voltage which is widely hot-sale around worldwide. With ISO9001-2000 Certified, Chicheng products are mainly divided into household gas alarm, portable single/multi gas detector, industrial fixed gas detecting transmitter, etc. Henan Chicheng has a mission to offer proper device and excellent all-round services to customers from automotive production plants, petrochemical, gas, pharmaceutical and metallurgical industries.
4, Q: what's the price9 A: Price depends on quantity, we have the best price as we are the original manufacture . 7, Q: Does your detector the same as other company9 A: except JKD-510&602, others is our patented product. 9, Q: how do you shipping the goods9\ A: always by Express, aslo we accept sea shipping, but it takes long time. .
Main Features • High stability optical chamber • Circular LED indicator for 360° visibility • Network by relay, N.O/N. C optional • Adopted CMOS with low power consumption • High adaptability to the ambient, with dustproof, mothproof, moisture proof, anti-white light, and high EMI immunity • DC10-35V input voltage • Orientation differences: Mmax: Mmin<1.6 • Unique bracket design, easy installation Technical Specifications Input Voltage DC 10-35V Static Current ≤50uA (DC 12-35V) Alarm Current 40-80mA (DC 12-30V) Operating Humidity 10%-95% RH (Non coagulating) Operating Temperature -10°C- +55°C Alarm Reset Auto reset (power off reset, ≤0.5s optional) LED Indication Detecting: Green LED flash Alarm: Red LED ON Wiring Mode Non polarized, 4-wire with relay output Installation Ceiling mounted Detecting Area 60m² ( with 4 meter height ) Detecting Sensitivity Dimension Φ100*48mm Product Show OEM & ODM Service Culture,Cetificate Pack Ship & Payment Contact us
4,587 smoke alarm products are offered for sale by suppliers on Alibaba.com, of which fire detectors accounts for 41%, alarm accounts for 34%, and smart home accounts for 1%.
A wide variety of smoke alarm options are available to you, such as smoke, fire, and personal. You can also choose from ip54 smoke alarm, as well as from remote control, tamper alarm, and waterproof / weatherproof smoke alarm, and whether smoke alarm is toys, or industrial magnet.
There are 4,591 suppliers who sells smoke alarm on Alibaba.com, mainly located in Asia. The top countries of suppliers are United States, China, and Taiwan, China, from which the percentage of smoke alarm supply is 1%, 98%, and 1% respectively.