Intro： ?High sensibility halogen detection technology ?igh intellectual recognition technology, no false alarm ?With run fan auto-switch, can get rid of danger automatically while alarm be used to house , marketplace,office Chara and Function: The overall small dish outward appearance design, the modelling artistic harmony, the installment simple and direct are convenient. Circuit design craft excellent, SMT pastes the piece craft, the low electricity consumes, the battery period of revolution is long. In the wireless launching system sets, code convenient, the transmission range is far. The product structure carries on the spreading craft, guards against the static electricity to report mistakenly, antijamming ability. Compatible, many kinds of alarm the way no matter what elects. The US smog detector special-purpose intelligence integrates the IC control, the fast response restores, sensitivity high, the performance long-term stability is reliable. Tech spec ： Operation voltage: 9V lithium battery 500mAh Quiescent current:< 6 mu A Alarm current:﹤40mA Operation temperature：-10℃～50℃ Alarm sound:70dB Install： no