• UL217 8th editon, CAN/ULC-S531,
    UL268 7th editon Ready
  • Highly reliable Photoelectric technology
  • Fixed high temperature and ROR fast response
    thermistor sensor
  • Temperature reporting capability
  • Advanced sensing technology reducing cooking
    nuisance alarms
  • Unique modular plug-in radio design
  • Large EZ-Press™ and Test/Hush button
  • Automatic low battery indication
  • Automatic smoke chamber status
  • Built-in sounder – 85dBA at 3 meters
  • LED Alarm indication
  • Easy to install twist-on base design
  • Micro-mesh insect screen
  • 5 year warranty
Product Description

The EiA660 Multi-Criteria Smoke Alarm uses high-reliability photoelectric sensing technology and fast acting thermistor based temperature sensing technology, providing quick warning of all standard residential fire types, including smoldering fires other devices might take longer to detect.

A unique external 8 pin header design enables simple, plug-in interface with a wide range (frequency and/or protocol) of custom OEM radio modules. No need to open the housing or to solder ribbon cables. EiA660 devices are specifically designed for simple & intuitive, time-saving installation, commissioning and maintenance. All necessary mounting hardware is included.

The large, ergonomic, easy-to-find, Test/Hush button enables full testing and the ability to temporarily silence false/nuisance alarms. Patented, high-performance optical chamber with integral micro-mesh™ fixed insect screen further reduces the possibility of false alarms.

Technical Specifications

Sensor Types

Thermistor: High temperature range 135°F ± 4°F

ROR: 15°F/min when >104°F

Photoelectric (Optical)

Radio Integration

Plug-in 8 Pin header

Integrated Head Removal Tamper Switch

When head is removed a signal can be sent to the panel/hub via the RF module

Sound Level

Minimum output 85dBA at 3m. The sounder contacts are soldered directly to the piezo disc for additional security

Button Test

Checks the sensors, electronics, battery and horn

Silence function

Silences nuisance alarm (automatically resets after approximately 10 minutes)

Supply Voltage

1 x CR123A battery. Provision is made for a second optional CR123A battery.

LED Indication

RED - Power up, button test, in alarm, in hush, memory,

YELLOW - Power up, low battery, sensor fault, end of life

Operating Temperature Range

40°F to 100°F (*)

Storage Temperature Range

14°F to 104°F (*)

Humidity Range

15 % to 95 % Relative Humidity

Product dimensions

115mm x 55mm or 4.53” x 2.17” 


245g or 8.64 ounces  (Includes packaging)


5 year (limited) warranty


(*)  Temperature and Humidity conditions are for normal operation and storage. Units will function outside these ranges as required by the specific Product Standards. However, extended exposure to conditions outside these ranges may affect product life. For advice on prolonged operation outside these ranges consult the manufacturer.

Model Variations


Short Description

EiA660WBase model
EiA660iWBase model with AudioLINK  
EiA660RFBase model with Ei Electronics module fitted 

Base model with RadioLink module fitted and AudioLINK



Datasheet EiA660 - UL 8th Edition Approved


Datasheet EiA660 - UL 7th Edition Approved


Book Cartoon icon        Manual EiA600 Series