COMET T5640 – PoE WebSensor for CO₂ 0–5000 ppm

COMET T5640 – PoE WebSensor for CO₂ 0–5000 ppm, NDIR Sensor, IEEE 802.3af 

The COMET T5640 is the professional PoE WebSensor (T-Line) for precise CO₂ concentration measurement, featuring an integrated NDIR sensor and Power over Ethernet (IEEE 802.3af). As a true remote CO₂ monitor, it is the ideal solution for modern indoor air monitoring in offices, schools, conference rooms, server rooms, production halls, hospitals, theaters, or anywhere elevated CO₂ levels can cause fatigue, concentration loss, and health risks.

The maintenance-free dual-wavelength NDIR sensor with multipoint calibration and automatic aging compensation measures CO₂ extremely accurately from 0 to 5000 ppm (±(50 ppm + 3 % of reading) at 25 °C and 1013 hPa). The sensor is highly resistant to contamination, offers long-term stability, and is perfect for process control and demanding applications. CO₂ values are shown on the integrated display or indicated by a color LED—clearly visible for quick responses.

Via Ethernet (RJ45) with PoE, the sensor integrates seamlessly into networks since power and data run through a single cable! Direct connection to the COMET Cloud (3 months free, then 1 Credit/year) enables charts, exports, alarms, and remote access via app or browser. Alternatively, use Modbus TCP, SNMP, JSON, or XML for your own SCADA/BMS/IoT solution. The T5640 is robust, maintenance-free, and built for continuous industrial use – made by COMET.

Why the COMET T5640 is the professional CO₂ WebSensor with PoE:

• Power over Ethernet IEEE 802.3af – power + data through one cable
• Pure CO₂ focus – 0 to 5000 ppm
• Precise NDIR sensor – dual-wavelength & aging compensation
• Ethernet interface – direct network integration
• COMET Cloud ready – 3 months free, low cost afterward
• Modbus TCP, SNMP, JSON, XML – open for third-party systems
• LED + display – color signalling & visualization
• Remote alarm function – e-mail, SNMP trap, Syslog
• IP30 protection – for indoor use
• 3-year warranty

Technical data T5640:

• CO₂ measuring range: 0 to 5000 ppm
• CO₂ accuracy: ±(50 ppm + 3 % of reading) at 25 °C and 1013 hPa
• Resolution: 1 ppm
• Measurement interval: 15 s
• Interface: Ethernet (RJ45) with PoE IEEE 802.3af
• Cloud: COMET Cloud (3 months free)
• Protocols: WWW, Modbus TCP, SNMPv1, SOAP, XML
• Alarm protocols: E-mail, SNMP Trap, Syslog
• Power supply: PoE IEEE 802.3af or 9–30 V DC
• Operating temperature: –30 to +60 °C
• Protection rating: IP30
• Dimensions: 88.5 × 72.5 × 39.5 mm
• Weight: approx. 140 g
• Warranty: 3 years

Perfectly suited for:

• Schools, kindergartens & lecture halls
• Offices & open-plan offices
• Conference & meeting rooms
• Server rooms & data centers
• Hospitals & medical practices
• Production & storage halls
• Indoor air quality according to DIN 1946-6
• Smart building & energy management

Setup – done in minutes

Connect the network cable with PoE – done! The integrated web interface guides you through setup. Online with COMET Cloud in seconds – no additional power supply required.

Summary:

• CO₂ WebSensor with Power over Ethernet (PoE) and remote alarm
• A multi-level CO₂ and temperature adjustment process ensures excellent CO₂ measurement accuracy over the entire operating temperature range
• This is essential for process control and outdoor applications
• The dual-wavelength NDIR CO₂ measurement method automatically compensates for aging effects
• The CO₂ module is highly dirt-resistant, maintenance-free, and offers outstanding long-term stability.
• CO₂ concentration is shown on the display or indicated by a color LED.

Scope of delivery:

• T5640
• User manual
• Traceable calibration certificate
• Free TSensor software for transmitter configuration
• COMET Cloud for 3 months