Wireless 433MHz Smoke Sensor Detector Built-in Transmit Antenna Long Distance

Wireless 433MHz Smoke Sensor Detector Built-in Transmit Antenna Long Distance. Wireless 433MHz Smoke Sensor Smoke Detector Built-in Transmit Antenna Long Distance Work Support M2B G2B PG103 W2B G18 G90B 30A. Work Frequency: 433MHz. The principle of detecting is granule in the smoke can reflect infrared light.. Condition:: New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. See all condition definitions : Brand: : NiWoolf , Battery Type: : 9V 6F22: MPN: : Does not apply , Work Frequency: : 433MHz: Type: : Smoke Detector , Usage: : For Alarm System: Model Number: : Smoke-02-a , Working Principle: : Detect Smoke: Color: : White , Size: : 10.5 x 10.5 x 3.5cm: UPC: : Does not apply ,

Wireless 433MHz Smoke Sensor Detector Built-in Transmit Antenna Long Distance