Manual test, auto-reset <br />Photoelectric sensor <br />Sound & flash alarm <br />Single sided fiberglass PCB<br />High stability to the environment <br />High density SMT design <br />Specifications:<br /><br />Material: ABS Plastic<br />Output pulse voltage: 2000 kv<br />Battery: included <br />Color: white<br />Power supply: 9 Volt battery<br />Static current: ≤10uA <br />Alarm current: ≤15mA <br />Working temperature: -10 to +50 degree Celsius <br />Humidity: ≤95%RH <br />Alarm mode: sound & flash <br />Sensitivity: 85dB at 10 feet<br />Monitoring area: 20 square meter <br />Size: 107 x44 mm   <br /><br />What's in the box?<br /><br />1 x Standalone smoke detector<br />1 x Built-in 9V battery<br />1 x English manual<br />Color box Packing<br /><img src="http://img6.eachbuyer.com/x9/p100/cq930_1.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq930_2.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq930_3.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq930_4.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq930_5.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/cq930_6.jpg" / noproxy>