Product feature
1. The alarm using programmable microcomputer chip control, alarm accurately and reliably.
2. Built-in high Loudness-siren and high-intensity warning lights, dual deterrent effect.

Add a wireless siren method
The siren is set as an external siren: the siren at this moment is equivalent to a wireless external siren, the standalone alarm system will give sound and light alarm as long as the host has a warning alarm signal. Firstly,siren connecte to the power adapter, then press the SET button about 4 seconds then release, siren built-in buzzer will "Di""Di""Di""Di" 4 sound and accompanied by flashing lights. The wireless siren enter into learning state, waiting to receive Alarm code sent by the alarm host. After receiving the signal ,Siren will continue issued a trickle"Di""Di""Di""Di", it means means learning success.

Delete wireless siren
Siren connected to the power adapter, press and hold the setting button until siren continuous "Di""Di""Di""Di""Di"5 sound means clear all the alarm code.

Technical parameters
Working voltage: AC 180V ~ 250V DC5V
Standby power consumption: ≤ 13mA
Siren sound pressure: 110 dB
Built-in battery: 1000MA lithium battery                       
Wireless frequency: 315/433 / 868MHz /
Coding method: EV 1527 IC / 4.7M / open code 0010 / code 0010
SC 2262 IC / 4.7M / Code 0100 / Code 0010
Backup battery: AAA 5V
Receiving distance:> 100 meters

Attention
1, The machine should be regularly tested.
2, Install the antenna as far as possible away from the metal object, in order to obtain the best transmission distance.
3, Try to avoid using two or more infrared detectors in the same area, so as not to trigger at the same time lead to the machine does not receive the signal.
4, Although the alarm is used daily, but it must also be regularly maintained, regular testing, in order to ensure the stable, reliable and safe operation. Usually sirens, every three months must be a comprehensive test, the detector is best to test once a month