Sending Loudness Rating: ≥+2dB ≤+12dB
Accept Loudness Evaluation value: ≥-8dB ≤-1dB
STMR: ≥+3dB ≥+10dB
4. Function Introduction
1.Auto-dial function: press the emergency button, after 3 ~ 5 seconds will automatically connect to the specified number for you
2.Switch monitoring screen: press the emergency button, it will produces a switch signal,the main monitoring will switch to the emergency call position
3.Call flash hints: when there is an incoming call,high brightness leds start flashing, suggesting there’s phone come in.
4.Talk time limit: Automatic timing starts 7 minutes as answered the phone,automatically hang up when time’s up,prevent long time calls occupy line resource (the factory preset functions).
5.Auto Hang Up: After calling hang up,busy signal detected,automatically terminated.
Waterproof Rate: IP54
Installation type: Flushed mounting
Install screw: M6*20Phillips added hexagonal flat combination of three screws+M6 roof explosive/4 sets of each