Connect to the panel's negative bell trigger. The sounder activates when this terminal is pulled to 0V (or +12V is removed, depending on jumper settings).
When the input is activated (e.g., fire zone goes into alarm), the output relay energises immediately (or after SW1-4 delay). When the input restores, the output de-energises automatically. elmdene 7422-sfg-g3f manual
Microprocessor-controlled with self-test functions every 24 hours to check battery and piezo health. Installation & Maintenance Notes Connect to the panel's negative bell trigger
“2. The Elmdene 7422-SFG-G3F is not an alarm. It is a key. To find the lock, reverse the polarity of terminals 4 and 7, set dip-switch 3 to ‘ON,’ and place your left hand on the chassis during the second tone.” The Elmdene 7422-SFG-G3F is not an alarm
(Alternatively, most wholesalers provide a QR code on the box that links directly to the product datasheet.)
Elmdene 7422-SFG-G3F is a professional-grade external intruder alarm sounder, or "bell box," manufactured by and primarily used in ADT security systems