First Alert BRK SM6W01 Hardwired Smoke Alarm with AA Battery Backup

First Alert BRK SM6W01 Hardwired Smoke Alarm with AA Battery Backup Hardwired 120 VAC photoelectric smoke alarm with replaceable AA battery backup from BRK (Resideo). Interconnects with up to 18 compatible alarms (12 smoke) including the First Alert SC5 smart alarm. Features SoftCue reminders, LED indicators and a side-loading battery drawer. Key Features Photoelectric smoke sensing, 10-year service life 120 VAC hardwired with replaceable AA battery backup (Kendal LR6, Energizer E91 or Duracell MN1500) Interconnect up to 18 alarms (12 smoke alarms max); works with most hardwired First Alert and BRK alarms Interconnect with First Alert SC5 smart alarm for app alerts and remote monitoring SoftCue early-warning low-battery chirp LED indicators for alarm, power, battery and replace-device status Side-loading battery drawer Latching and silence features; self-diagnostics; end-of-life signal Two tamper-resistant locking pins Gasketless base with wide rotation range Standardized mounting bracket and optional trim ring Specifications Sensor Photoelectric Power 120 VAC @ 60 Hz, 0.7 A Battery backup AA (replaceable) Alarm dimensions 5.2 in dia. x 1.76 in H Weight 0.54 lb (244.94 g) Audio alarm 85 dB at 10 ft (3 m) Interconnect Yes - up to 18 alarms, 12 of which can be smoke alarms Operating temperature 40-100 °F (4.4-38 °C) Humidity range 20-95% RH non-condensing (agency compliance 93% max) Color White Standards UL 217 In the Box SM6W01 smoke alarm AA backup battery Standardized mounting bracket Easy-Fit trim ring (optional use) AC connector (wiring harness) Mounting screws and anchors (shown in manufacturer contents photo) Related Models SM6W01-CP (6-pack) SM6W01-P48 (48-pack, no box) SM6W01-P48NB (48-pack) SC6W10 (hardwired smoke/CO) First Alert SC5 (interconnect) Replaces: SMI100-AC, SM300-AC, SM100V-AC Specifications taken from the manufacturer's published literature. Manufacturer specifications are subject to change without notice.