These fully-supervised transmitters enable you to program check-ins at 10-second, 30-second, 60-second and 5-minute intervals--perfect for high security installations that desire a tight supervision window, or residential installations where a four-hour window is sufficient. In addition to conventional door contacts, consider using Inovonics Universal Transmitters with shock sensors, holdup buttons, pressure mats, temperature sensors, status relays, and a host of other sensors and devices. FA210 Reduced Size Universal Transmitter Available in off-white (FA210) or brown (FA210-BN). For use with any standard contact or sensor, this reduced-size universal transmitter comes with case tamper and supports and end-of-line resistor. Mounting bracket provided for quick and easy installation. Uses a 3V lithium battery that is end-user replaceable. FA210 Reduced Size "Wide Gap" Door/Window Transmitter Available in off-white (FA210W) or brown (FA210W-BN). Same as the FA210 but includes two built-in magnetic reed switches-one on top, and one on the side for maximum flexibility. Includes magnet that supports a 5/8" gap. FA200W "Wide Gap" Door/Window Transmitter Same as the FA200 but includes a built-in magnetic reed switch and large magnet to support a one-inch gap. FA200 Slim-Line Universal Transmitter For use with any standard switch, sensor, or device that changes state from Normally Open to Normally Closed, or vice versa. Fully-supervised with case tamper, this transmitter also supports an end-of-line resistor for true security.