Wireless motion detector
STI-V34700 wireless, indoor motion detector sends a wireless radio signal to a four-channel voice receiver when the sensor detects movement. The receiver offers ten tones/tunes and 53 selectable words in English or Spanish. Four tones/tunes/words can be programmed to identify which area requires assistance. The unit has a range of 1,000 feet between sensor and receiver. As many as four transmitters can be used with the same voice receiver.
Safety Technology International