Wireless Carbon Monoxide (CO) Detector

SAFE CO Guard

CO Guard represents a new generation of wireless carbon monoxide detector with breakthrough detection using a second-generation electrochemical sensor, featuring an LCD display, a free-standing design and certification allowing extended installation including caravans, motorhomes and boats. The detector is intended for indoor installation, where it can operate as part of the SAFE alarm system with support of the Hub SAFE central control unit, or completely autonomously.

Power for up to 36 months is provided by a replaceable lithium battery. The detector excels in the accuracy of hazard detection combined with high sensitivity, stable performance and maximum resistance to false alarms.

Description of the Device

A Modern solution for detecting a silent danger

The CO Guard detector represents a modern solution for monitoring the carbon monoxide level in the monitored area. If the device detects danger in the form of a concentration of this invisible killer, it immediately triggers the built-in loud siren and at the same time sends an alarm signal to the central control panel of the SAFE alarm system. The device is powered by one 3 V CR123A lithium battery, which thanks to the detector's economical power management ensures long operation, for up to 3 years (after this period the battery will need to be replaced). CO Guard combines a minimalist design with advanced hardware and intelligent software, thereby setting a new standard in the field of fire safety.

SAFE – Professional fire safety solution

CO Guard carbon monoxide detectors, in combination with other peripherals of the SAFE alarm system such as Fire Guard smoke detectors, Rep radio signal range repeaters, or SAFE fire IP cameras and the Hub SAFE central control unit, are able to create a maximally effective basis of a comprehensive fire safety solution for securing any premises. By easily interconnecting and linking all these compatible devices, you gain a professional fire ecosystem.

A single application is all it takes

You can monitor, manage and control the SAFE ecosystem through a single intuitive interface of the free mobile app ProSAFE, which gives you effective control over any threat and enables an immediate response to potential danger at its onset. Monitor the status of each device in real time. Configure and adjust your alarm system settings remotely from anywhere. All information and instant notifications in one app on your phone 24 hours a day, 7 days a week!

Local CO alarm indication

If during detection the CO concentration reaches a certain defined threshold, the detector triggers a loud acoustic alarm signal of 85 dB accompanied by flashing of the red LED indicator signalling a carbon monoxide alarm, while the detector display shows the currently measured CO concentration. The purpose is to deliberately attract the attention of persons present in the building by means of a high noise level and intensive LED signalling to the fact that a potential danger is arising in some part of the building. The purpose of the CO alarm is then an immediate response to the alarm event or the movement of persons from the place of the emergency to a safe zone.

Unique design

The combination of battery power and the design of the detector housing allow installation by placing the device in an optimal position on a horizontal surface. Thanks to this, fixed installation of the detector on a wall is not required, and it can be placed (stood) freely and variably on horizontal surfaces such as shelves, bedside tables, window sills or other set-down areas. The electronic components and the detector's printed circuit board are provided with an insulating and protective coating with IZOVAX nanoparticles protecting the device electronics even in very humid environments. The device can therefore be placed or installed, for example, in bathrooms with a gas water heater or gas boiler, in boiler rooms, drying rooms and the like.

Stay safe even when you're on the road

CO Guard represents an uncompromising standard in protection against carbon monoxide – the silent killer that shows no mercy. Whether it is family houses, office premises, business establishments or recreational buildings such as cottages and cabins, our device provides reliable and continuous protection. Thanks to its top-class design it meets the demanding standards of EN 50291-2: 2019, which allows its installation also in caravans, motorhomes or on boats. Your safety thus remains an absolute priority for us, whether you are at home or on the road.

Memory of the highest measured value

The SAFE CO Guard carbon monoxide detector is equipped with an advanced memory function that monitors the highest measured carbon monoxide gas values. The memory records information about the highest measured CO concentration in ppm even during your absence.  By pressing the combined TEST/HUSH button you can at any time check on the LCD display the maximum level of the measured values retrospectively, since the last manual memory reset. The information is also stored and clearly displayed in the ProSAFE application of the alarm system.

Temporary alarm silencing

If the detector registers the threshold level of CO concentration, it triggers a warning signalization to activate the alarm. In case of unwanted acoustic alarm signalization, it can be temporarily silenced by pressing the TEST/HUSH button for up to 45 seconds. The temporary hush mode is indicated by the device by the red LED indicator flashing at a regularly repeating interval of once per second without accompanying acoustic buzzer signalization. If the CO concentration subsequently drops below the predetermined values, the detector automatically returns to normal operating mode.

Technical Specifications

Model Designation
  • SAFE 38240
    White version
    EAN code - 0728204235188
Classification
  • ClassificationCarbon Monoxide (CO) Detector
  • Type of DeviceWireless
  • Usage Indoor environment
  • Device TypeA
  • Device Lifespan10 years
Interface
  • Indication 3 built-in LED indicators​
    Standby mode: Green LED flashes once per minute
    Alarm: Red LED flashes once per second
    Fault: Yellow LED
  • LCD displayDisplay of measured values in ppm
  • Buttons1 × TEST / MUTE / Recall Measured Values button
Functions
  • Test ModeYes
  • Low Battery WarningYes
  • Temporary alarm silencingYes
  • Memory of the highest measured valueYes
Wireless Transmission
  • Carrier Frequency868.0 MHz – 868.6 MHz
  • Transmitter Power (EIRP)Limit 35.5 mW
  • Communication Distance Up to 1,000 m (3,280.84 ft) in open space
  • Communication TypeBidirectional
  • Encryption ModeAES128
  • Frequency Hopping Yes (automatic)
Detection Parameters
  • Detection TypeCarbon monoxide (CO)
  • SensorElectrochemical CO Sensor
  • Low battery detectionYes
  • Signalization Acoustic: 85 dB(A) at a distance of 3 m (9.84 ft)
    Visual: LED indicator, LCD display
  • Mute FunctionYes
  • Mute Time 45 seconds
General
  • Power Supply 1× 3V CR123A lithium battery (replaceable)
  • Power Consumption≤20 μA (operating)
    ≤10 mA (alarm)
  • Battery Life3 years
  • Operating Temperature–10°C to +40°C (+14°F to +104°F) (indoors)
  • Operating Humidity≤95% (RH without condensation)
  • Storage temperature–20 °C to +60 °C
  • Storage humidity5% to 95% relative humidity, non-condensing
  • Product Dimensions115.5 mm × 71.1 mm × 28.9 mm
  • Package Dimensions121 mm × 78 mm × 39 mm
  • Product Weight 1,25 kg
  • Package Weight1,82 kg
  • InstallationOn a wall or a horizontal surface
  • Coverage IP30
  • Housing MaterialPC + ABS
  • ColourWhite
  • ComplianceCE
    EN 50291-1: 2018
    EN 50291-1: 2018/AC:2021
    EN 50291-2: 2019 (residential caravans, motor caravans and boats)
    BS EN 50291-1: 2018
    EN 62479:2010
    EN 50663:2017
    EN 50270:2015
    EN 301 489-1 V2.2.3
    EN 301 489-3 V2.1.1
    EN 300 220-2 V3.1.1
    EN IEC 63000:2018
  • Compatibility Hub 2 Plus LTE SAFE 38300
  • Warranty36 months