Ei105R Low Voltage Optical Smoke Alarm

The Ei105R is an Optical Smoke Alarm designed to connect to a panel for its low voltage power supply (10.2 – 14V DC).  This Alarm is fitted with volt free contacts that can be used to switch an external device. 

  • Optical Sensor
  • 10.2-14V DC supply
  • 1 Volt-free contact output (No/NC)
  • Hardwire interconnect
  • Test button
  • Integrated piezoelectric sounder

EN 14604:2005 + AC:2008

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The Ei105R Optical Smoke Alarm is designed to connect to a panel for its low voltage power supply (10.2-14V DC) but also as a trigger via a built in relay.  When smoke is detected, the horn will sound and the relay will switch.   

The Ei105R may operate as a standalone Alarm or may be hardwire interconnected  to other Ei low voltage Alarms from the same range.  In an interconnected system, an Alarm sensing fire will cause all others to alarm and switch contact (depending on installation configuration). Up to 12 Alarms from the same range can be interconnected. 

The Test button allows the user to check the operation of the Alarm.  This will check the sensor, sounder, internal circuitry and relay.  When the Test button is pressed, the horn will sound within 10 seconds and the relay contacts will change over about 4 seconds after the horn sounds.  All interconnected Alarms should sound within 10 seconds.  When the button is released, the horn will stop sounding and the relay contacts will change back 4 seconds later.

The Ei105R self-checks its chamber sensor every 40 seconds.  Any fault condition found will be indicated by sound beeps.

Sensor: Optical
Product life: 10 years
Supply voltage: 10.2-14V DC
Relay Contacts rating:
24V, 1A resistive, NO/NC
Interconnection: via Hardwire
Sound level: 85 dB(A) at 3 meters
Button Test: Checks sensors, electronics, horn and relay contacts operation
Visual indicators:
Red LED: Power and alarm
Normal Operating and Storage Temperature: 
-10°C to 40°C
Normal Operating and Storage Humidity Range:  15% to 95% relative humidity
Plastic material: UL94 HB
Fixing: Screw fixing and mounting plate supplied
Dimensions:
Product: 130mm x 115mm x 45mm
Packaged: 155mm x 135mm x 55mm
Weight:
Product: 180g
 Product + packaging: 230g
Warranty: 5 years

Product Manual

Product Datasheet