STI Wireless Exit Stopper Multifunction Door Alarm 8-Channel Receiver
STI Wireless Exit Stopper Multi-Function Door Alarm with 8-Channel Receiver-STI-6400WIR8. It can also serve as an inexpensive security device and help prevent theft. ✔️Supervised wireless, 433 MHz. ✔️Includes 8-Channel Receiver (STI-34108).