STI's supervised wireless door alarm (Product #STI-V6400WIR4) helps stop unauthorized exits and entries of fire/emergency doors. When activated, it emits an ear piercing alarm for 30 seconds, three minutes or continuously and sends a radio signal to the 4-Channel Voice Receiver alerting it has been triggered (range up to 1000’ line of sight). Receiver “speaks” custom messages in English or Spanish, has 10 tones/tunes and 53 words. Up to four tones/tunes or words can be programmed in sequence to identify status (ex: rear door open, “ding” side door alert, emergency exit door open, etc.).
More Info: www.sti-usa.com/cd29