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Support pre-alarm recording (10 sec
These wireless systems have a sensor/transmitter which monitors a 12-foot radius (24’ diameter) to detect disturbances in the magnetic field caused by vehicle traffic in driveways
Standby: 25mA Light Source IR LED Speaker Volume 0~90 dB Alarm Time Range 3~30 s (Adjustable) Dimensions Sensor- 3-1/4" x 2-9/16" x 1-1/2" (82 x 65 x 37mm)
In most instances
Wireless Warehouse Doorbell with Strobe PORTABLE DOOR BELL Support pre-alarm recording (10 secThis wireless warehouse doorbell is the longest transmission range known with a 4000 feet line of sight. The doorbell can also function as a magnetic contact for The receiver has many options including excellent volume control. Included is Transmitter , Receiver and programming May also be used with any Dakota alert 4000 series alarms to act as a relay to transmit the wireless signal further if necessary Item will be preprogrammed for tone at