Dual Telephone Line Surge Suppressor The ELK-955 is a Two-Line RJ31X/38X Telephone Jack containing solid state transient suppression designed to protect the telephone inputs on an alarm control. It responds to power surges and transients in less than 1 nanosecond, automatically restoring after each surge within the specified ratings. The ELK-955 is compact and easy to install and features high quality, clearly...
Smoke Detector, 500 Series, Photo, 2-wire, CleanMe®, 6-24VDC Discontinued and Replaced with 521NB Replacement for ESL 429C Alarm Current Consumption[Maximum] 60.0 mA Detector Head Depth[Nominal] 2.0 in Detector Head Diameter[Nominal] 5.0 in Drift Compensation Adjustment 1 %/ft Field Wiring Size[Minimum] 12.0...
Smoke Detector, 500 Series, Photo, 4-Wire, 12-24VDC, UL Discontinued - Can Use ESL 541NB as a replacement The 500 Series self-diagnostic, two & four wire smoke detectors are conventional direct-wire smoke detectors with analog features such as remote maintenance/trouble reporting (CleanMe®), drift compensation, and multi-criteria detection. The 500...
Smoke Detector, 500 Series, Photo, 4-Wire, Heat, 12/24VDC Discontinued - No Stock Remains! Can use System Sensor 4WTB as a suggested replacement The 500 Series self-diagnostic, two & four wire smoke detectors are conventional direct-wire smoke detectors with analog features such as remote maintenance/trouble reporting (CleanMe®), drift compensation,...
CALL FOR AVAILABILITY Four Wire Photoelectric Smoke Detector 6-33VDC Can use as a Replacement for ESL 449C which is discontinued Built-in sounder available Patented CleanMe feature Built-in dust compensation Field-replaceable optical chamber