manufacturer of measuring instruments
English Česky Africa China Español Français Magyar Polski Sweden USA UAE

{{ txt }}

Show all results

Sensor for One Digital Temperature and Humidity or CO2 Probe, Ethernet Output and PoE

Sensor for One Digital Temperature and Humidity or CO2 Probe, Ethernet Output and PoE
Sensor for One Digital Temperature and Humidity or CO2 Probe, Ethernet Output and PoE
Sensor for One Digital Temperature and Humidity or CO2 Probe, Ethernet Output and PoE
Sensor for One Digital Temperature and Humidity or CO2 Probe, Ethernet Output and PoE

The TA3611 is a flexible Ethernet sensor designed for connecting one external digital probe.

It supports both temperature and humidity probes as well as the NDIR CO2 probe CO2G-10, allowing the device to be adapted to a specific application without hardware changes. Thanks to the innovated platform, the device offers a modern web interface, advanced security, and broad support for communication protocols.

A large backlit LCD display ensures clear local visualization of measured values, including dew point or absolute humidity calculation, while LED and acoustic signaling alert to alarm states.

The TA3611 is the ideal choice for environmental monitoring in locations where flexibility of the measured variable and easy integration into monitoring systems are required.

Main Benefits:

  • Support for T+RH or CO2 digital probes
  • Flexible use of one device for different applications
  • Backlit LCD display, acoustic and LED alarm signaling
  • Power supply 5–24 V or PoE
  • Integrated backup memory
  • Modern web interface, IPv4/IPv6 support, Modbus TCP, COMET Cloud, and fully encrypted communication (HTTPS, SNMPv3, TLS)
  • Integrated detachable bracket for easy installation

  • code
    TA3611
  • Warranty
    3 years
  • In stock
    4 pcs
  • 330.00 EUR
Add to quote

Technical data

Measured value

Temperature
Relative humidity
Counted values (dew point…)
CO2

TEMPERATURE SENSOR

Measuring range Depending on the connected DSxx probe
Accuracy Depending on the connected DSxx probe
Resolution 0.1 °C

HUMIDITY SENSOR

Measuring range Depending on the connected DSxx probe
Accuracy Depending on the connected DSxx probe
Resolution 0.1% RH

DEW POINT

Measuring range Depending on the connected DSxx probe
Accuracy Depending on the connected DSxx probe
Resolution 0.1 °C

CO2 SENSOR

Measuring range 0 to 10,000 ppm
Accuracy ±(100 ppm + 5% of reading) at 23 °C and 1,013 hPa
Resolution 1 ppm
CO2 probe cable length 1, 2 or 4 meters

GENERAL TECHNICAL DATA

Operating temperature range -30 to +60 °C
Measurement channels 1× digital T+RH probe (cable-mounted) or CO₂ probe, ELKA connector
Calculated values dew point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy, humidex, heat index
Supported temperature units degrees Celsius (°C), degrees Fahrenheit (°F)
Temperature compensation of the humidity sensor across the entire temperature range
Power supply Power over Ethernet (IEEE 802.3af) or 5–24 V DC
Network interface Ethernet
IP support IPv4, IPv6
Communication protocols HTTP(s), Web server (WWW), HTTP GET (JSON, XML), Modbus TCP, SNMPv1, SNMPv2c, SNMPv3
Alarm protocols Email (SMTP), Syslog
Measurement interval 1 s
Ingress protection (IP rating) IP30 (electronics)
Dimensions 116 × 85 × 42 mm (without connected probe)
Weight 220 g
Warranty 3 years

Premium Ethernet Sensors with Display and Local Signaling

The TAx6xx series represents a new generation of Web Sensor 2.0 premium sensors. They combine precise measurement, modern network communication, and local monitoring via an LCD display, LED signaling, and an acoustic alarm.

Ideal solution for:

  • server rooms and data centers
  • laboratories and healthcare
  • industrial facilities
  • offices, schools, and public buildings
  • cleanrooms

Why choose TAx6xx?

Local monitoring without a PC

  • Backlit segmented LCD display (4 brightness levels)
  • Display of values, alarms, and IP address
  • Three-color LED signaling (green / yellow / red)
  • Acoustic alarm with local and remote mute options

Advanced next-generation alarms

  • 2 adjustable alarms per channel (no direction limits)
  • System alarms (measurement, time, or configuration error…)
  • Signaling via: LED, acoustics, e-mail (TLS / STARTTLS), Syslog

Calculations and advanced analytics

  • Dew point
  • Absolute humidity
  • Specific humidity
  • Mixing ratio
  • Enthalpy
  • Humidex and Heat Index
  • Inter-channel calculations (e.g., temperature difference, CO₂ difference)

Maximum connectivity and security

  • HTTP / HTTPS (custom certificate upload)
  • SNMP v1 / v2c / v3 (SHA, AES128)
  • Modbus TCP (including alarm mute and limit changes)
  • IPv4 + IPv6
  • COMET Cloud / COMET Database
  • TLS communication
  • 4 user accounts, 3 permission levels
  • Firmware updates via web

Power without compromises

  • 5–24 V DC
  • PoE (IEEE 802.3af)
  • RTC with battery backup
  • Backed-up memory (>2600 records)

Typical applications

Data centers

  • Monitoring of temperature, humidity, and CO₂ with instant LED indication.
  • Laboratories: High-precision Pt1000 inputs, cable compensation, alarms.
  • Schools and offices: CO₂ air quality "traffic light" for ventilation control.
  • Industry: Durable solution with PoE and SCADA integration.

The new platform brings:

  • new compact design
  • removable bracket for easy mounting
  • unified firmware
  • enhanced cybersecurity
  • RTC with battery
  • advanced alarm system

Optional accessories and download

Ultra thin digital temperature/humidity probe

Ultra thin digital temperature/humidity probe

Temperature range: -10 to 60°C
code DIGIH/E-1
Price EUR 107.00 EUR
In stock 4 pcs
Ultra thin digital temperature/humidity probe, cable 2 m

Ultra thin digital temperature/humidity probe, cable 2 m

Temperature range: -10 to 60°C
code DIGIH/E-2
Price EUR 113.00 EUR
In stock on request
Ultra thin digital temperature/humidity probe, cable 5 m

Ultra thin digital temperature/humidity probe, cable 5 m

Temperature range: -10 to 60°C
code DIGIH/E-5
Price EUR 127.00 EUR
In stock 4 pcs
Digital temperature/humidity probe DIGIL/E, ELKA connector

Digital temperature/humidity probe DIGIL/E, ELKA connector

Temperature range: -20 to 80°C
code DIGIL/E
Price EUR 95.00 EUR
In stock 29 pcs
Digital temperature/humidity probe DIGIL/E-1, ELKA connector, cable 1 meter

Digital temperature/humidity probe DIGIL/E-1, ELKA connector, cable 1 meter

Temperature range: -30 to 105°C
code DIGIL/E-1
Price EUR 100.00 EUR
In stock 8 pcs
Digital temperature/humidity probe DIGIL/E-10, ELKA connector, cable 10 meters

Digital temperature/humidity probe DIGIL/E-10, ELKA connector, cable 10 meters

Temperature range: -30 to 105°C
code DIGIL/E-10
Price EUR 141.00 EUR
In stock 1 pcs
Digital temperature/humidity probe DIGIL/E-15, ELKA connector, cable 15 meters

Digital temperature/humidity probe DIGIL/E-15, ELKA connector, cable 15 meters

Temperature range: -30 to 105°C
code DIGIL/E-15
Price EUR 163.00 EUR
In stock 1 pcs
Digital temperature/humidity probe DIGIL/E-2, ELKA connector, cable 2 meters

Digital temperature/humidity probe DIGIL/E-2, ELKA connector, cable 2 meters

Temperature range: -30 to 105°C
code DIGIL/E-2
Price EUR 105.00 EUR
In stock 7 pcs
Digital temperature/humidity probe DIGIL/E-5, ELKA connector, cable 5 meters

Digital temperature/humidity probe DIGIL/E-5, ELKA connector, cable 5 meters

Temperature range: -30 to 105°C
code DIGIL/E-5
Price EUR 118.00 EUR
In stock 15 pcs
Digital temperature/humidity probe DIGIS/E, ELKA connector

Digital temperature/humidity probe DIGIS/E, ELKA connector

Temperature range: -20 to 80°C
code DIGIS/E
Price EUR 83.00 EUR
In stock 53 pcs
Digital temperature/humidity probe DIGIS/E-1, ELKA connector, cable 1 meter

Digital temperature/humidity probe DIGIS/E-1, ELKA connector, cable 1 meter

Temperature range: -10 to 60°C
code DIGIS/E-1
Price EUR 87.00 EUR
In stock 7 pcs
Digital temperature/humidity probe DIGIS/E-10, ELKA connector, cable 10 meters

Digital temperature/humidity probe DIGIS/E-10, ELKA connector, cable 10 meters

Temperature range: -10 to 60°C
code DIGIS/E-10
Price EUR 127.00 EUR
In stock 2 pcs
Digital temperature/humidity probe DIGIS/E-15, ELKA connector, cable 15 meters

Digital temperature/humidity probe DIGIS/E-15, ELKA connector, cable 15 meters

Temperature range: -10 to 60°C
code DIGIS/E-15
Price EUR 150.00 EUR
In stock on request
Digital temperature/humidity probe DIGIS/E-2, ELKA connector, cable 2 meters

Digital temperature/humidity probe DIGIS/E-2, ELKA connector, cable 2 meters

Temperature range: -10 to 60°C
code DIGIS/E-2
Price EUR 91.00 EUR
In stock 4 pcs
Digital temperature/humidity probe DIGIS/E-5, ELKA connector, cable 5 meters

Digital temperature/humidity probe DIGIS/E-5, ELKA connector, cable 5 meters

Temperature range: -10 to 60°C
code DIGIS/E-5
Price EUR 105.00 EUR
In stock 2 pcs

CO2 external probe, range 0-10.000ppm, M12 connector, without cable

CO2 external probe, range 0-10.000ppm, M12 connector, without cable

code SN274
Price EUR 416.00 EUR
In stock 10 pcs
Extension cable for CO2 probe, M12/M8 circular connector, cable 1 meter

Extension cable for CO2 probe, M12/M8 circular connector, cable 1 meter

code UWP001
Price EUR 35.00 EUR
In stock on request
Extension cable for CO2 probe, M12/M8 connector, cable 2 meters

Extension cable for CO2 probe, M12/M8 connector, cable 2 meters

code UWP001-2
Price EUR 37.00 EUR
In stock on request
Extension cable for CO2 probe, M12/M8 connector, cable 4 meters

Extension cable for CO2 probe, M12/M8 connector, cable 4 meters

code UWP001-4
Price EUR 40.00 EUR
In stock on request

AC/DC adapter 230Vac to 5Vdc/2.1 A, EU

AC/DC adapter 230Vac to 5Vdc/2.1 A, EU

code A1879eu
Price EUR 13.00 EUR
In stock 5 pcs
AC/DC adapter 230Vac to 5Vdc/2.1 A, UK

AC/DC adapter 230Vac to 5Vdc/2.1 A, UK

code A1879uk
Price EUR 13.00 EUR
In stock on request
AC/DC adapter 230Vac to 5Vdc/2.1 A, US

AC/DC adapter 230Vac to 5Vdc/2.1 A, US

code A1879us
Price EUR 13.00 EUR
In stock on request

Accredited temperature calibration

Accredited temperature calibration

code SLU001
Price EUR 40.00 EUR
In stock on request
Accredited temperature and relative humidity calibration

Accredited temperature and relative humidity calibration

code SLU003
Price EUR 56.00 EUR
In stock on request
Accredited CO2 calibration

Accredited CO2 calibration

code SLU015
Price EUR 271.00 EUR
In stock on request

KIT-GSM with modem

KIT-GSM with modem

code KIT-GSM-W
Price EUR 228.00 EUR
In stock on request
300Mbps Wireless N Nano Router

300Mbps Wireless N Nano Router

code TL-WIFI
Price EUR 41.00 EUR
In stock 5 pcs

Universal probe holder for easy mounting to rack 19"

Universal probe holder for easy mounting to rack 19"

code MP047
Price EUR 9.00 EUR
In stock 8 pcs
Wall holder for external probes DIGIL

Wall holder for external probes DIGIL

code SP009
Price EUR 8.00 EUR
In stock 32 pcs
Magnetic holder for Web Sensors PAxxxx and TAxxxx

Magnetic holder for Web Sensors PAxxxx and TAxxxx

code SP104
Price EUR 10.00 EUR
In stock on request

sintered bronze sensor protection

sintered bronze sensor protection

code F0000
Price EUR On request
In stock on request
plastic sensor protection with stainless filter (gray)

plastic sensor protection with stainless filter (gray)

code F5200
Price EUR On request
In stock on request
plastic sensor protection with stainless filter (black)

plastic sensor protection with stainless filter (black)

code F5200B
Price EUR 13.00 EUR
In stock on request
PTFE sensor protection, white

PTFE sensor protection, white

code F5300
Price EUR 38.00 EUR
In stock on request

COMET Database

COMET Database

code CDB
Price EUR 454.00 EUR
In stock yes
COMET Cloud

COMET Cloud

code cloud
Price EUR On request
In stock yes
COMET Cloud Lite for Android & iOS

COMET Cloud Lite for Android & iOS

code cloud_app
Price EUR On request
In stock yes
COMET VISION - Analytical Software for Dataloggers and Multiloggers

COMET VISION - Analytical Software for Dataloggers and Multiloggers

code CV
Price EUR FREE
In stock yes
Database Viewer for Comet Database

Database Viewer for Comet Database

code DBV
Price EUR 74.00 EUR
In stock yes

COMET presentation case for samples

COMET presentation case for samples

code BM512
Price EUR 300.00 EUR
In stock on request
COMET Magnetic Foldable Stand

COMET Magnetic Foldable Stand

code PPO001
Price EUR 425.00 EUR
In stock on request

Software

download-icon Comet Database One Click Installer (21.1-V)
487.31 MB
download-icon Database Viewer 3.20.0.0 dbapi 21.1
24.33 MB
download-icon Conversions - application for recalculation of values
694.50 KB
download-icon COMET Cloud Lite - Android (Google Play)
download-icon COMET Cloud Lite - iOS (App Store)

Others

download-icon Terms and Conditions COMET System s.r.o.
133.12 KB

Manuals

download-icon Quick Start Manual
961.10 KB
download-icon Declaration of Conformity
0 bytes
download-icon Software development kit (SDK) / Popis komunikačních protokolů (SDK)
35.68 KB

Catalogs

download-icon Catalogue Sheets - COMET Premium WebSensors 2.0
1.03 MB

Related products

COMET Cloud

COMET Cloud

code cloud
Price EUR On request
In stock yes
COMET Database

COMET Database

code CDB
Price EUR 454.00 EUR
In stock yes
Sensor for Up to Two Digital Temperature and Humidity or CO2 Probes, Ethernet Output and PoE

Sensor for Up to Two Digital Temperature and Humidity or CO2 Probes, Ethernet Output and PoE

code TA3621
Price EUR 346.00 EUR
In stock on request
Sensor for One Digital Temperature and Humidity or CO2 Probe, with Internal Barometric Pressure Sensor, Ethernet Output and PoE

Sensor for One Digital Temperature and Humidity or CO2 Probe, with Internal Barometric Pressure Sensor, Ethernet Output and PoE

code TA7611
Price EUR 459.00 EUR
In stock 5 pcs
Compact Temperature and Humidity Sensor, Ethernet Output and PoE

Compact Temperature and Humidity Sensor, Ethernet Output and PoE

code TA3610
Price EUR 409.00 EUR
In stock on request
Thermometer Screen for Weather Station Sensor

Thermometer Screen for Weather Station Sensor

Discontinued
WiFi temperature and relative humidity sensor with integrated probe

WiFi temperature and relative humidity sensor with integrated probe

code W3710
Price EUR 355.00 EUR
In stock 17 pcs
WiFi temperature and relative humidity sensor for external probe

WiFi temperature and relative humidity sensor for external probe

code W3711
Price EUR 275.00 EUR
In stock 4 pcs
WiFi temperature and relative humidity sensor for two external probes

WiFi temperature and relative humidity sensor for two external probes

code W3721
Price EUR 293.00 EUR
In stock 12 pcs
Wireless thermometer, hygrometer for external probe, Sigfox IoT

Wireless thermometer, hygrometer for external probe, Sigfox IoT

code W3811
Price EUR 176.00 EUR
In stock on request
IoT Wireless Temperature and Relative Humidity Datalogger for external probe, with built-in 4G modem

IoT Wireless Temperature and Relative Humidity Datalogger for external probe, with built-in 4G modem

code U3121G
Price EUR 536.00 EUR
In stock 2 pcs
IoT Wireless Temperature, Relative Humidity, CO2 and atmospheric pressure Datalogger with built-in 4G modem

IoT Wireless Temperature, Relative Humidity, CO2 and atmospheric pressure Datalogger with built-in 4G modem

code U4440G
Price EUR 788.00 EUR
In stock 5 pcs
Web Sensor with PoE - remote thermometer hygrometer with Ethernet interface

Web Sensor with PoE - remote thermometer hygrometer with Ethernet interface

code T3610
Price EUR 348.00 EUR
In stock on request
Web Sensor with PoE - remote thermometer hygrometer with Ethernet interface

Web Sensor with PoE - remote thermometer hygrometer with Ethernet interface

code T3611
Price EUR 358.00 EUR
In stock 1 pcs

We produce

Leading manufacturer of temperature, humidity, atmospheric pressure, carbon dioxide CO2 transmitters, data loggers, monitoring systems, data acquisiton systems, thermometers, hygrometers, barometers. Production includes data acquisition systems, humidity, temperature, CO2 transmitters and portable thermometers, hygrometers, barometers, CO2 meters. Instruments are designed for accurate measurement and for monitoring environmental conditions.

All instruments come with included traceable calibration certificate with declared metrological traceability of etalons based on requirements of EN ISO/IEC 17025 standard.

 

 

ISO logo CQS logo EZC logo
© Copyright 2026 COMET SYSTEM, s.r.o. | Webdesign by Spaneco