LogiCO2 Mk9 CO2 sensor add-on kit
LogiCO2 Mk9 CO2 sensor add-on kit
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LogiCO2 Mk9 CO2 sensor to extend or replace a detection point
The LogiCO2 Mk9 CO2 Sensor measures CO2 concentration, displays the values on screen and generates an alert when the configured alarm levels are reached. It is a suitable solution as a replacement or expansion within an existing LogiCO2 system.
What this product offers
This sensor is designed to monitor CO2 concentration in an enclosed space and warn when potentially dangerous levels are reached. It can operate connected to a LogiCO2 central unit or be integrated into a broader monitoring system.
Its NDIR technology, MODBUS communication and automatic self-calibration make it a solid technical option for hospitality, wineries, breweries, technical rooms and other environments where CO2 is used or stored.
At Install Beer, as official distributors in Europe and providers of installation and maintenance services, this type of sensor is particularly suitable for extensions, replacements, and maintenance of LogiCO2 systems.
Key data
Main features
- CO2 measurement by NDIR Uses non‑dispersive infrared and a thermistor to control CO2 concentration.
- Integrated display Shows CO2, TWA and temperature when the thermal function is enabled.
- Local audible alarm Includes an audible warning when an alarm level is reached.
- Professional connectivity Communicates via RS485 MODBUS.
- Automatic self-calibration Performs periodic self-calibration under normal conditions.
- Available outputs Integrates 2 x 24 V DC transistor outputs.
- Compatible with control unit Can be connected to the LogiCO2 central unit.
- Use as spare or expansion The official package includes the Mk9 CO2 detector as a standalone unit.
Technical specifications
| Parameter | Data |
|---|---|
| Brand | LogiCO2 |
| Model | CO2 Sensor Mk9 |
| SKU | LG020 |
| MPN / manufacturer part number | 1134 |
| Equipment type | CO2 sensor for safety system |
| Fuente de alimentación | 24 V DC |
| Power consumption | <300 mA according to the official page; the system manual states 56 mA at rest and 68 mA in alarm for Mk9 |
| Wiring connections | RJ45 |
| Digital interface | RS485 MODBUS serial |
| Outputs | 2 transistor outputs 24 V DC, min. 1 mA |
| Audible signal | 85 dBa (1 m) max. according to the official page; the system manual states 76 dBa (1 m) max. for Mk9 |
| Operating principle | NDIR and thermistor |
| CO2 measuring range | 0–3% vol. |
| Extended CO2 range | 3–6.7% vol. |
| Sampling mode | Diffusion |
| TWA | Calculation over 8 hours with a 2-minute sampling period |
| Resolution | 0.01% vol. |
| CO2 accuracy | ±200 ppm ±10% of reading |
| Annual zero-point drift | <0.01% vol. with automatic self‑calibration |
| Operating temperature | -20 to +50 °C according to the official website; the system manual states 0 to +45 °C |
| Operating humidity | 0 to 95% RH non-condensing |
| Warm‑up time | 1 min at 22 °C |
| Sensor service life | >15 years |
| Dimensions | The official page states Ø 90 mm x 120 mm; the Mk9/Mk90 manual states 90 x 161 x 38 mm |
| Ingress protection | IP54 according to the official website; the Mk9/Mk90 manual states IP56 for Mk9 |
| Niveles de alarma predefinidos | 5,000 ppm instant alert, 5000 ppm 8‑h TWA, 1.5% STEL average, 3.0% STEL |
| Scope of supply | CO2 Mk9 detector |
| Weight | 1 kg |
Compatibility and use cases
This sensor can be used as a standalone unit, connected to a LogiCO2 central unit, or within a computerized supervision system. It also supports connection of horns/beacons or other external boxes to add functionality.
It is suitable for bars, pubs, technical rooms, wineries, breweries, soft drink plants and other spaces where CO2 may accumulate in the event of a leak.
Installation and considerations before buying
- Mk9 and Mk90 CO2 sensors must be installed at a maximum of 30 cm from the floor.
- The maximum distance to the distribution or leak point is 5 m.
- Each sensor covers a maximum of 78 m².
- If the room has only mechanical ventilation, the manual states that it must have a sensor.
- It is advisable to install it in an area where it is less exposed to impacts or mechanical damage.
- Before purchasing, confirm whether you need only the sensor or also a central unit, beacon, transformer or signaling accessories.
Recommended maintenance and use
Since this is a safety product, LogiCO2 recommends carrying out a functional check at least once a year.
After a replacement or expansion, it’s advisable to check the display reading, communication with the control unit if present, and the response of the system’s audible and visual alarms.
Frequently asked questions
Is this product an O2 add-on kit?
No. The item corresponds to the CO2 Sensor Mk9, that is, a CO2 sensor.
Can it operate without a central unit?
The official page states that it can be used as a standalone unit, connected to a central unit or within a larger computerized system.
What alarm levels does it come preset with?
5,000 ppm instant alert, 5,000 ppm 8 h TWA, 1.5% average STEL and 3.0% STEL.
¿Dónde debe instalarse?
At a maximum height of 30 cm from the floor and a maximum distance of 5 m from the CO2 distribution point.
What area does one sensor cover?
Up to 78 m² according to the Mk9/Mk90 system manual.
Does it require maintenance?
Yes. The manufacturer recommends a functional check at least once a year.
Shipping: check availability, lead time and applicable cost before completing your order.
Terms: see the shipping, returns and warranty pages for the applicable conditions.
Structured technical information
Information to choose, install and maintain this product
Technical specifications
Select a variant to see its technical specifications.
- Tube size
- Thread
- Connection
- RS485 MODBUS + RJ45
- Pressure
- Temperature
- Dimensions