Nano Sensorics CarbonLess

The LoRaWAN sensor for CO2, temperature and humidity indoors

The Nano Sensorics CARBONLESS is an indoor sensor for the complete measurement of CO2 concentration, temperature and humidity. The sensor is housed in a room sensor enclosure, designed for wall mounting and operates fully wirelessly with 3.6 V AA lithium batteries. An integrated advanced intelligent (AI) calculation algorithm ensures reliable acquisition of the measured variables; data transmission is performed via a Class A LoRaWAN® radio network.

The CARBONLESS is easy to set up and connect to the LoRaWAN radio network. Thanks to the integrated AI algorithms and Automatic Baseline Correction (ABC) technology, the sensor automatically calibrates itself in normal indoor environments.

CO2, temperature and humidity in one device

The CARBONLESS simultaneously records the three most important parameters for a healthy indoor climate.

How the CARBONLESS is designed

The compact room sensor housing measures 86 x 86 x 25.5 mm and weighs 80 g without batteries.

Reliable radio connection over long distances

The CARBONLESS uses LoRaWAN® for energy-efficient and long-range data transmission.

Adjust settings via downlink

After installation, the CARBONLESS can be conveniently configured remotely without having to open the device again.

• Measuring interval (Tx period) adjustable via downlink on port 3, minimum 30 seconds
• Green status LED can be switched on, off or toggled for 5 seconds via downlink
• Device reset can be triggered via downlink command
• Multiple settings can be combined in a single downlink message
• Optional configuration additionally possible via NFC directly on the device

Factory-calibrated with automatic self-calibration

The CARBONLESS is factory-calibrated and requires no further maintenance in normal operation.

Thanks to the integrated intelligent calculation algorithms (AI) and the Automatic Baseline Correction (ABC) technology from Nano Sensorics, the sensor is maintenance-free in normal indoor environments. A “normal environment” is defined as a room without continuous 24-hour occupancy and without permanently high CO2 levels.

The ABC technology continuously tracks the lowest measured CO2 value over a defined period and compensates for long-term drift against the expected fresh air value of 400 ppm CO2. In a normal indoor environment, the CO2 value temporarily drops almost to outdoor air level over the course of a week; by comparing the lowest value over 7 days with this 400 ppm reference point, the CARBONLESS detects whether a zero-point adjustment is necessary.

If a room is permanently occupied and the CO2 value never drops to background level – for example in closed, unventilated rooms – the ABC algorithm does not work reliably. In this case, the ABC function must be deactivated and the sensor must instead be calibrated manually every two to three years.

For manual calibration, the device is taken outdoors to fresh air for 10 minutes after inserting the batteries; the sensor uses the CO2 values measured there as a reference for calibrating the indoor values.

Installation in a few steps

The installation manual describes the procedure from battery installation to network connection.

Important safety instructions

• The sensor is intended exclusively for indoor use
• Do not disassemble, crush or puncture the housing or battery
• Remove batteries when not in use to prevent leakage
• Keep the device and battery dry and away from liquids
• Use only equivalent battery types recommended by the manufacturer
• Do not throw batteries into fire – even damaged batteries can explode
• Do not bend, deform, paint or place the sensor in a microwave
• Do not insert foreign objects into housing openings, do not close the openings
• Do not dry the device with an external heat source such as a microwave or hair dryer
• Do not clean with solvents or alcohol, only with a slightly damp cloth
• The sensor is not washable and not paintable
• Not suitable for metrological or commercial billing purposes

According to the manufacturer’s declaration of conformity, the device meets the requirements of the EMC Directive 2014/30/EU, the Low Voltage Directive 2014/35/EU and the RED Directive 2014/53/EU and bears the CE and RoHS markings.

Notes on transport and storage

Packaged sensors can be transported in any closed vehicle. The devices should be securely fastened to avoid impacts and shifting in the vehicle and must be protected against mechanical damage. Aggressive chemical substances must not be stored together with the sensors due to the risk of corrosion.

Manufacturer’s warranty

The manufacturer grants a warranty of 12 months from the date of manufacture, provided that transport, installation, storage and operating conditions are complied with. The warranty only applies in the case of intended use and if there has been no manipulation or external damage by the user. An extension of the warranty is possible for an additional charge.

Environmentally friendly disposal

The CARBONLESS falls under the Waste Electrical and Electronic Equipment Directive (WEEE Directive 2012/19/EU). The device and its components must be disposed of separately from household and industrial waste at a local collection point. The battery must be disposed of separately.

Areas of application

According to the manufacturer, the CARBONLESS is suitable for a wide range of indoor monitoring tasks.

• Indoor climate monitoring in general
• Smart Buildings
• Government buildings
• Public buildings
• Banks
• Industrial facilities and factories

The Nano Sensorics CARBONLESS combines the measurement of CO2, temperature and humidity with battery-powered, wireless LoRaWAN connectivity and automatic self-calibration in one device – suitable for continuous monitoring of indoor air quality in buildings and industrial facilities.

Frequently asked questions