End-of-life product: 2023-01-31


Wireless carbon monoxide (CO) combined with smoke detector

EWF1 Alarm panel
LED operation indicator
Lifetime 7 years
Photoelectric sensor for slow smouldering fires and carbon
Quick fix mounting plate for easy installation

What is it?

EWF1CO is a wireless electrochemical-based carbon monoxide (CO) detector combined with photoelectric-based smoke detector designed to detect smouldering fire.

What it does?

When the concentration of smoke/CO exceeds a given threshold, the system will cause alarm, resulting in built-in siren activation and SMS text message and phone call delivery (by default) to the listed user’s phone number.

Main features

  • Photoelectric sensor for slow smouldering fires and carbon
  • Non-radioactive technology for environmental friendly
  • High and stable sensitivity
  • Quick fix mounting plate for easy installation
  • LED operation indicator
  • Built-in speaker for audio alarm indication
  • Tamper switch: for device detachment from the wall detection
  • Electrochemical-based carbon monoxide (CO) sensor
  • Lifetime 7 years

Frequently asked questions (FAQ)

How to restore default parameters?

  1. Remove the battery from EWF1/EWF1CO.

  2. Press and hold the RESET button.

  3. Insert the battery back to EWF1/EWF1CO.

  4. Hold the RESET button until you hear a short beep.

  5. Release the RESET button.

What battery should I use for replacement?

We strongly recommend using EVE CR9V-P, Energizer LA522 battery or Ultralife U9VL-J 6F22.

What are the prices of ELDES production?

To get the prices of the devices please check ELDES disributors’ Internet sites. Otherwise, feel free to contact out partners in your country/city by telephone or e-mail.

Can I purchase ELDES devices directly from you?

You can purchase ELDES production only from our distributors. If you have any ideas or intentions to create a new nonstandart device or suggestions how to improve our current devices contact us directly or our partners in your country.

Where can I purchase ELDES devices if your distributors are not available in my country?

Feel free to contact us.


Carbon monoxide detection typeElectrochemical
Carbon monoxide detection range0-400 ppm
Alarm sound level85dB at 3m
Battery typePrimary 9V Lithium 1200mAh ANSI/NEDA 1604LC
Number of batteries1
Battery operation time~18 months (might vary in different conditions)
Wireless transmitter-receiver frequency868/915 MHz
Wireless communication rangeUp to 30 meters in premises; up to 150 meters in open areas
Built-in temperature sensorYes
Range of operating temperatures+5 up to +45°C
Humidity0-90% RH @ 0… +40 °C (non-condensing)
Sensitivity to smoke3.0-6.0 % Obs /m
Compatible with alarm systemsESIM364, ESIM384, Pitbull Alarm, Pitbull PRO
Dimensions110mm diameter

Where to buy?