The STI-V34400 Wireless Universal Alert will let you know if the monitored site is tripped. It can be used on a medicine cabinet, garage door, gate, window: anything that you want to monitor for motion.
A wireless signal is sent from the Universal Alert to the receiver. Alert works with the 4-Channel Wireless Receiver, 4-Channel Wireless Voice Receiver or 8-Channel Wireless Receiver. Programmable transmitter can be used as the following: one on board reed switch, one set of remote terminals or as a tilt switch. It has a supervised battery and signal reception and has a range of up to 1000 feet (line of sight).
Everything you need to know about the STI 4-Channel Voice Receiver