FEATURES Lithium replaceable battery back-up Optional RF module Indicator lights for test/hush/silence and fault warnings Loud alarm: 85dB(A) @ 3m CSIRO ActivFire listed Meets Australian smoke alarm standards (AS3786:2014) 7 year warranty SPECIFICATIONS Model Number: 240V 10yr: EP-VC-240-10 Normal Operating & Storage Temperature: 0° to 40° Dimensions: 140mm x 44.9mm Weight: 281g Warranty: 7 Years Power: 240V with 1yr 9V Alkaline or 10yr 9V lithium replaceable battery Sensor: Photoelectric optical chamber Alarm Volume: >85dB(A) @ 3m Interconnect: Radio Frequency (RF) enabling connection with up to 40 alarms on one wireless network Normal Operating & Storage Humidity: 15% to 95% relative humidity (non-condensing) See Brochure Emerald Planet Interconnectable Smoke Alarms and Accessories