Edwards EST SIGA-AB4G-LF Low-Frequency Sounder Base

The Edwards EST SIGA-AB4G-LF is a low-frequency 520 Hz sounder base for Signature Series detectors that adds local audible output at the detector. It supports temporal signaling and can operate as a local alarm with its host detector or as part of a synchronized group under panel control. Use with a temporal pattern generator to separate fire and CO tones when required. Key Specifications: Type: Low-frequency detector sounder base for Signature Series heads Output/Tone: 520 Hz low-frequency output with temporal signaling Power: 16 to 33 VDC riser input Operation: Follows host detector alarm or group activation via system programming; supports synchronization on compatible systems Mounting: Flush to standard North American and European boxes; optional surface box available Operating Range: 32 to 120 °F; 0 to 93 percent RH, non-condensing Notes: For fire and CO tone separation, use with SIGA-TCDR Compatible Detectors: SIGA-OSD – Photoelectric smoke detector SIGA-OSHD – Optical smoke and heat multisensor SIGA-OSCD – Optical smoke and CO multisensor SIGA-OSHCD – Optical smoke, heat, and CO multisensor Other Signature Series smoke and heat heads Related Models & Accessories: SIGA-AB4GT – Sounder base for fire and CO applications with SIGA-TCDR SIGA-AB4G – Standard audible sounder base AB4G-SB – Surface-mount box for sounder base System Compatibility: Signature Series control panels using a Signature loop controller.