smoke Detector Notifer typ: FSP 851 Base: B501 by Honeywell FSP-851 Features - Sleek, low-profile design. - Addressable-analog communication. - Stable communication technique with noise immunity. - Low standby current. - Two-wire SLC connection. - Rotary, decimal addressing (1-99 on CLIP systems, 1-159 on FlashScan systems). - Dual LED design provides 360 viewing angle. - Visible bi-color LEDs blink green every time the detector is addressed, and illuminate steady red on alarm FlashScan systems only). - Remote test feature from the panel. - Walk test with address display (an address on 121 will blink the detector LED: 12-[pause]-1(FlashScan systems only). - Built-in functional test switch activated by external magnet. - Built-in tamper-resistant feature. - Sealed against back pressure. - Optional relay, isolator, and sounder bases. Specifications - Size : 5.3cm high x 10.4cm diameter installed in B501 base - Operating Temperature : FSP-851, 0C to 49 - Relative Humidity : 10%-93% noncondensing. Electrical Specifications - Voltage Range : 15-32 volts DC peak. - Standby Current (max. avg.) : 300"A @ 24VDC (one communication every five seconds with LED enabled). - LED Current (max.) : 6.5mA @ 24VDC