CO2 sensor · LogiCO2
LogiCO2 Mk90 CO2 sensor to extend or replace a detection point
The LogiCO2 Mk90 CO2 sensor is a detection module with integrated audible and visual alarm that measures CO2 concentration in confined spaces and connects to the Mk9 central unit within the LogiCO2 safety system.
What this product offers
This product is intended to expand an existing installation or replace an Mk90 sensor within a LogiCO2 system. It is not a complete kit with control unit, siren/beacon and power supply, but the sensor module only.
Its main advantage over a basic sensor is the Mk90 construction itself: translucent housing, high‑intensity red alarm LEDs, local audible indication and LCD display showing CO2, TWA and temperature when the thermal alarm is active.
At Install Beer, as official distributors in Europe and technical service for installation and maintenance, this type of module is particularly suitable for extensions, replacements and maintenance of already installed LogiCO2 systems.
Key data
Manufacturer’s part number
1190
SKU Install Beer
LG015
Type
CO2 sensor for Mk9 system
Measuring range
0–3% vol.
On-screen display
Up to 6.7% vol.
Protection
IP54
Important: the official page states that the package includes the Mk90 sensor. Before purchasing, it is advisable to confirm whether your replacement or expansion also requires cabling, central unit, siren/beacon or other system accessories.
Main features
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Built‑in alarm The sensor includes audible and visual indication instead of relying solely on the control unit.
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High‑intensity red LEDs The Mk90 adds enhanced visual warning thanks to its translucent housing and visible alarm LEDs.
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LCD display Shows current CO2 concentration, TWA, and temperature if the temperature function is enabled.
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NDIR detection Uses non-dispersive infrared and a thermistor to measure CO2.
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Professional communication Integrates via RS485 Modbus within the LogiCO2 system.
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Configurable address The manual allows ID configuration from 1 to 12 via DIP switches.
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Automatic self‑calibration Reduces annual zero‑point drift and helps maintain reading stability.
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Long service life The manual states a sensor life of more than 15 years.
Technical specifications
Confirmed technical specifications of the LogiCO2 Mk90 CO2 sensor
| Parameter |
Confirmed data |
| Brand |
LogiCO2 |
| Model |
CO2 Sensor Mk90 |
| SKU |
LG015 |
| MPN / manufacturer part number |
1190 |
| Equipment type |
CO2 sensor for LogiCO2 safety system |
| Compatibility |
Connectable with Mk9 Central Unit and Mk9 CO2 Sensor Set |
| Fuente de alimentación |
24 V DC |
| Consumption without alarm |
56 mA |
| Power consumption in alarm |
117 mA |
| Wiring connections |
RJ45 |
| Digital interface |
RS485 Modbus serial port |
| Outputs |
2 x 24 V DC transistor outputs, min. 1 mA |
| Display |
LCD |
| Sound signal level |
80 dBa (1 m) max. |
| Operating principle |
Non-dispersive infrared (NDIR) and thermistor |
| CO2 measuring range |
0–3% vol. |
| On-screen display |
Current CO2 concentration from 0.0% to 6.7%, TWA and temperature if the thermal alarm is enabled |
| Accuracy |
±200 ppm ±10% of reading |
| Resolution |
0,01 % vol. |
| Annual zero-point drift |
<0.01% vol. with automatic self-calibration function |
| Operating temperature |
0 to +45 °C |
| Operating humidity |
0 to 95% RH non-condensing |
| Warm‑up time |
1 minute at 22 °C |
| Sensor service life |
>15 años |
| Dimensions |
90 x 161 x 38 mm |
| Ingress protection |
IP54 |
| Overvoltage |
Category II |
| Pollution degree |
II |
| Preset levels |
Awareness >5000 ppm, low alarm 1.5%, high alarm 3%, TWA 5000 ppm |
| Scope of supply |
CO2 Sensor Mk90 |
| Weight |
1 Kg |
Compatibility and use cases
This sensor is designed to be integrated into the LogiCO2 safety system with Mk9 central unit and sensor ID configurations. It is suitable as a spare or extension when a CO2 safety installation is already in operation.
It is suitable for hospitality, wineries, breweries, cold rooms, technical rooms and other confined spaces where CO2 is used or stored and an additional detection point or replacement of an existing sensor is needed.
It is also a useful option when you want to maintain the same LogiCO2 architecture and the same local alert logic in the sensor itself.
Installation and considerations before buying
- The manual states that the sensor should be installed at a maximum height of 30 cm from the floor.
- It must be installed at a maximum distance of 5 m from the CO2 distribution point or potential leak source.
- Each sensor covers a maximum area of 78 m² in an enclosed space.
- It is advisable to mount the sensor in an area where it is less likely to be hit by moving objects, boxes, or cleaning equipment.
- If the system includes a siren/beacon, it must be mounted above the sensor, approximately 2–2.4 m from the floor and clearly visible from the entrance.
- Before purchasing, confirm whether you need only the sensor or a complete set with central unit, beacon, and power supply.
- As it is a safety component, installation and functional testing must be carried out with proper technical judgment.
Recommended maintenance and use
The manual recommends performing a functional check at least once a year, precisely because this is a safety product.
In real‑world use, it is advisable to periodically check the displayed reading, LED operation, audible signal, and correct integration with the rest of the system, especially after replacing the sensor or changing its ID address.
Frequently asked questions
Is this product a complete CO2 alarm kit?
No. It is the Mk90 sensor, designed to be integrated into a LogiCO2 system with Mk9 central unit or as a replacement within an existing installation.
Which system is it compatible with?
The official page indicates compatibility with the Mk9 central unit and the Mk9 CO2 Sensor Set.
What exactly does it measure?
Measures CO2 concentration and displays on screen the current concentration, TWA and temperature when the thermal alarm is active.
What are the default alarm levels?
By default, the manual specifies awareness >5000 ppm, low alarm 1.5%, high alarm 3%, and TWA 5000 ppm.
¿Dónde debe instalarse?
It must be installed at a maximum of 30 cm from the floor and less than 5 m from the distribution point or potential CO2 leak source.
Does it require periodic maintenance?
Yes. The manufacturer recommends at least one functional check per year.
