<p>The Honeywell SF340F is a hard wired, reliable carbon monoxde alarms designed for use in all residential and light commercial environments. The SF340F&nbsp;features a relay and interconnect&nbsp;output enabling the control of devices such as safety solenoid valves, additional alarms etc.&nbsp;Utilising Honeywell&#39;s advanced ECO-Sure electrochemical cell sensing technology, the SF340 co alarm&nbsp;comes complete with a full 10 year guarantee on the main unit and a full 5 year guarantee on each sensor module.</p> <p>Features:</p> <ul> <li>Unique 5 year module replacement system</li> <li>Up to 5 years battery back up</li> <li>Low maintenance &amp; low cost of ownership</li> <li>Secure installation</li> <li>Easy integration within existing systems</li> <li>Every alarm is tested and calibrated in&nbsp;carbon monoxide</li> <li>No re-wiring or main unit replacement costs</li> </ul> <p>Specifications:</p> <ul> <li>Detection Principle: Electrochemical cell</li> <li>Operating Voltage: 230Vac or 12/24Vdc</li> <li>Backup Battery: 9Vdc pp3</li> <li>Power Consumption: &lt;2.5W</li> <li>Main Unit Life: No replacement required (10 year guarantee)</li> <li>Module Life: 5 years (guaranteed)</li> <li>Module Replacement Warning: Double buzzer chirp every minute</li> <li>Alarm Indication: Buzzer and flashing red light</li> <li>Buzzer Output: 85 decibels (dB) at 3m</li> <li>Operating Temperature Range: -5 to +40&deg;C</li> <li>Alarm Levels: (BS7860: 1996) 150ppm, between 10 to 30 minutes, 350ppm within 6 minutes</li> <li>Weight: 575g approx.</li> <li>Dimensions: 170 x 110 x 65mm</li> <li>Test Facility: Yes</li> </ul>