Safety Technology International

The Wireless Exit Stopper is a unique and highly effective way to alert you to any unauthorised exits or entries through emergency exit doors. This exit door stopper can also serve as an inexpensive security device and help prevent theft as well. If the protected door is opened, the wireless door alarm emits a piercing 95/105 dB alarm when a protected door is opened and sends a wireless signal to an STI receiver. Operates up to 300m (line of sight), 433 MHz. The device is easy to install. However, if there are any questions, please view the install sheet located in the Literature tab on the web page. New product features! – Flashing beacon alarm, low battery indicator & dual language warning instructions.