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Interconnectable Optical Smoke Alarm with Rechargeable Battery
KF20R


  • Interlink with up to 23 Firex hard-wired alarms

  • Alarm memory

  • Dust compensation and bug screen

  • Auto reset after activation

  • Tamper-resistant locking device

  • Mains operation – Built-in rechargeable Lithium back-up

For large order quantities, please call our Customer Service team on 0800 917 0722
Power Source
230V AC Mains
Sensor
Optical, circular lateral chamber with insect-resistant width slot entry portals and added bug screen mesh
Battery Back Up
Built in Rechargeable lithium back up
  • Mains-powered optical smoke alarm that can be interlinked with up to 23 other Kidde mains alarms, be they ionisation, optical or heat.

  • Once interlinked, the detection of the relevant danger by an individual unit will sound across all the connected alarms.

  • Optical alarms are for use in escape or circulation routes and in areas where there is a danger of ignition of furniture and surroundings by cigarettes producing slow, smouldering fires.

  • This mains-powered unit should be installed by a qualified electrician and can be used throughout the home, except in the kitchen where a Firex Heat Alarm is recommended. These alarms comply with UK Building Regulations for new housing and associated standards (Grade D BS 5839, Part 6).

  • Interlink with up to 23 Firex hard-wired alarms – all alarms sound if danger is detected

  • Alarm memory – identifies source unit within interconnecting network

  • Combined Test/Hush button allows regular testing of alarm function and can be used to temporarily silence nuisance alarms,/li>

  • Auto reset after activation

  • Tamper-resistant locking device – prevents unauthorised removal without the use of a tool

  • Mains operation – Built-in rechargeable Lithium back-up tamper-proof battery

  • Model KF20R

  • Power Supply 230V mains-powered with 9V Alkailine battery back-up

  • Temperature Range 0ºC to + 40ºC

  • Humidity Range Up to 93% Relative Humidity (RH) non-condensing

  • Storage and Transport -20ºC to +60ºC and 5–95% relative humidity (RH) non-condensing

  • Alarm Dimensions 127 x 127 x 39mm

  • Bracket Dimensions 133 x 133 x 6mm

  • Alarm Weight 242g

  • Warranty 6 years

  • Approvals BSI certified to BS EN14604:2005

  • CE tested and certified Sensor Optical, circular lateral chamber with insect-resistant width slot entry portals and added bug screen mesh

  • Chamber Size 35mm outside diameter x 16mm depth approximate (external)

  • Detection Band Infrared light wavelength

  • Button Test Simulates the effect of smoke within the sensing chamber, checks electronics and sounder

  • Automatic Self-test Circuitry is tested and unit beeps (chirps) if fault is detected

  • Supply Voltage 230V AC, 50 Hz (nominal UK voltage)

  • Power Consumption < 15mA

  • Connection Push-in/snap-fit type connector with 150mm long flying leads (supplied)

  • Battery Back-up User-replaceable alkaline 9V battery (522/6LR61)

  • Power-on Indicator Continuous green LED

  • Alarm Sounder Electronic piezo-electric sounder (T3 pattern sound - 3 pulses - space - 3 pulses), soldered contacts

  • Sound Output 85dB (A) minimum at 3 metres

  • Alarm Frequency 3.2 kHz typical

  • Dust Protection In-built foam gasket in rear of alarm to prevent dust ingress into rear of the alarm

  • Alarm Status Red LED flashes approx once every five minutes = normal operation

  • Red LED flashes once a second = sensing smoke (sounder alarm sounds)

  • Red LED flashes once every ten seconds = in hush condition (auto-reset after 15 minutes)

  • Interconnection Up to 24 Firex and Kidde ‘Slick’ units (smoke, heat and CO) can be hardwire interconnected with optional control (see below)

  • Optional Controls Wired Remote Test and Hush Unit (REMTH) allows test and hush of interlinked units

  • Optional Pattresses SMK23RU also has integral switchable relay for operating remote devices

  • SMK4896 – Surface mounting base for added ease of installation

  • Fixing Mounting bracket ring supplied with two ‘T’ slot fitting option

  • 57mm spacing to a maximum of 90mm for standard screw fittings on back boxes

  • Bracket has 50mm diameter central access hole for cabling

  • Plastics used NORYL – Cover, main body and mounting bracket

  • Lead-Free Status All Firex alarms are lead-free

  • Mains-powered optical smoke alarm that can be interlinked with up to 23 other Kidde mains alarms, be they ionisation, optical or heat.

  • Once interlinked, the detection of the relevant danger by an individual unit will sound across all the connected alarms.

  • Optical alarms are for use in escape or circulation routes and in areas where there is a danger of ignition of furniture and surroundings by cigarettes producing slow, smouldering fires.

  • This mains-powered unit should be installed by a qualified electrician and can be used throughout the home, except in the kitchen where a Firex Heat Alarm is recommended. These alarms comply with UK Building Regulations for new housing and associated standards (Grade D BS 5839, Part 6).

  • Interlink with up to 23 Firex hard-wired alarms – all alarms sound if danger is detected

  • Alarm memory – identifies source unit within interconnecting network

  • Combined Test/Hush button allows regular testing of alarm function and can be used to temporarily silence nuisance alarms,/li>

  • Auto reset after activation

  • Tamper-resistant locking device – prevents unauthorised removal without the use of a tool

  • Mains operation – Built-in rechargeable Lithium back-up tamper-proof battery

  • Model KF20R

  • Power Supply 230V mains-powered with 9V Alkailine battery back-up

  • Temperature Range 0ºC to + 40ºC

  • Humidity Range Up to 93% Relative Humidity (RH) non-condensing

  • Storage and Transport -20ºC to +60ºC and 5–95% relative humidity (RH) non-condensing

  • Alarm Dimensions 127 x 127 x 39mm

  • Bracket Dimensions 133 x 133 x 6mm

  • Alarm Weight 242g

  • Warranty 6 years

  • Approvals BSI certified to BS EN14604:2005

  • CE tested and certified Sensor Optical, circular lateral chamber with insect-resistant width slot entry portals and added bug screen mesh

  • Chamber Size 35mm outside diameter x 16mm depth approximate (external)

  • Detection Band Infrared light wavelength

  • Button Test Simulates the effect of smoke within the sensing chamber, checks electronics and sounder

  • Automatic Self-test Circuitry is tested and unit beeps (chirps) if fault is detected

  • Supply Voltage 230V AC, 50 Hz (nominal UK voltage)

  • Power Consumption < 15mA

  • Connection Push-in/snap-fit type connector with 150mm long flying leads (supplied)

  • Battery Back-up User-replaceable alkaline 9V battery (522/6LR61)

  • Power-on Indicator Continuous green LED

  • Alarm Sounder Electronic piezo-electric sounder (T3 pattern sound - 3 pulses - space - 3 pulses), soldered contacts

  • Sound Output 85dB (A) minimum at 3 metres

  • Alarm Frequency 3.2 kHz typical

  • Dust Protection In-built foam gasket in rear of alarm to prevent dust ingress into rear of the alarm

  • Alarm Status Red LED flashes approx once every five minutes = normal operation

  • Red LED flashes once a second = sensing smoke (sounder alarm sounds)

  • Red LED flashes once every ten seconds = in hush condition (auto-reset after 15 minutes)

  • Interconnection Up to 24 Firex and Kidde ‘Slick’ units (smoke, heat and CO) can be hardwire interconnected with optional control (see below)

  • Optional Controls Wired Remote Test and Hush Unit (REMTH) allows test and hush of interlinked units

  • Optional Pattresses SMK23RU also has integral switchable relay for operating remote devices

  • SMK4896 – Surface mounting base for added ease of installation

  • Fixing Mounting bracket ring supplied with two ‘T’ slot fitting option

  • 57mm spacing to a maximum of 90mm for standard screw fittings on back boxes

  • Bracket has 50mm diameter central access hole for cabling

  • Plastics used NORYL – Cover, main body and mounting bracket

  • Lead-Free Status All Firex alarms are lead-free