Wireless Remote Control 2000m/1.24mile（No Wall) Control Siren Turn On or Turn Off One Remote Control up to 15 Alarms

【Function】The remote control is mainly used to control the alarm to turn on or off!  Press the "ON" button to turn on the alarm, press the "OFF" button to turn off the alarm.  An alarm with a remote control distance of 2000m can be equipped with up to 15 remote controls! The remote control needs to be paired with the alarm before use 【Remote distance】Remote control to control the alarm off or on, the remote distance is 2000 meters / 1.24 miles (in the open without wall obstruction). There is a power switch button "N or F" on the side of the remote control, toggle the power switch to "N" to turn the remote control on, toggle the power switch to "F" to turn the remote control off. 【Alarm installation limit】1 remote control can control up to 20 alarms. In an open environment, the distance between the remote control and the nearest alarm should not exceed 2000m/1.24 miles, and the distance between two adjacent alarms should not exceed 0.12 miles/200m! When the remote control presses the ON