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Sensor for One Digital Temperature and Humidity or CO2 Probe with Ethernet and PoE TA361

Reference: TA3611

Condition: New product

The TA3611 is a flexible Ethernet sensor designed to connect one external digital probe, allowing the same device to operate with a temperature and relative humidity probe or with an NDIR CO2 probe. This versatility makes it an excellent solution for projects where the measured variable may change over time without replacing the main hardware platform.

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Premium Ethernet sensor with display, PoE and local signalling

Sensor for One Digital Temperature and Humidity or CO2 Probe with Ethernet and PoE TA3611

Code: TA3611 Warranty: 3 years

The TA3611 is a professional Ethernet sensor for connecting 1 external digital probe, compatible with temperature and humidity or NDIR CO2. It is the ideal solution for real-time environmental monitoring, featuring a backlit LCD display, local LED and buzzer alarm signalling, PoE, backup memory and secure integration through HTTPS, Modbus TCP, SNMPv3 and COMET Cloud.

1 digital probe

T+RH or CO2

Backlit LCD

PoE IEEE 802.3af

IPv4 / IPv6

HTTPS / SNMPv3 / Modbus TCP

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View technical specifications

Thanks to its innovative platform, the TA3611 offers a modern web interface, enhanced security and broad support for communication protocols, making integration into monitoring, supervision, SCADA and cloud systems straightforward. The device supports HTTP/HTTPS, Modbus TCP, SNMP v1/v2c/v3, JSON/XML via HTTP GET, Syslog and COMET Cloud, together with encrypted communication via TLS.

The backlit LCD display provides clear local visualisation of measured and calculated values, including parameters such as dew point and absolute humidity. Three-colour LED signalling and an acoustic alarm allow alarm states to be identified immediately, even without accessing the remote interface.

With power supply via 5–24 V DC or PoE (IEEE 802.3af), integrated backup memory, a real-time clock with battery and support for IPv4 and IPv6, the TA3611 is a reliable choice for environmental monitoring in locations where measurement flexibility, local reliability and network integration are essential.

Why choose the TA3611?

Because it combines application flexibility, local visualisation, secure communication and advanced Ethernet integration in one compact sensor, ready for demanding technical and professional environments.

One device for T+RH or CO2
Local monitoring without a PC
Easy integration with monitoring, SCADA and cloud systems
Secure communication and broad industrial protocol support

Key benefits

Compatible with digital T+RH probes or CO2 probes.
Flexible use of the same device for different applications.
Backlit LCD display with clear local visualisation.
Alarm signalling through LED and acoustic alarm.
Power supply via 5–24 V DC or PoE.
Integrated backup memory.
Support for IPv4/IPv6, HTTPS, SNMPv3, Modbus TCP and COMET Cloud.
Calculation of dew point, absolute humidity, specific humidity, mixing ratio, specific enthalpy, humidex and heat index.
Support for 4 user accounts and 3 permission levels.
Firmware updates via web interface.

Recommended applications

The TA3611 is ideal for environmental monitoring wherever measured-variable flexibility, network integration and local status indication are required. It is especially recommended for:

Server rooms and data centres
Laboratories and healthcare environments
Industrial facilities
Offices, schools and public buildings
Cleanrooms
Indoor air quality monitoring with CO2

Technical and functional advantages

One of the main strengths of the TA3611 is the possibility of adapting the same device to different measurement needs simply by changing the external probe. This reduces standardisation costs, simplifies stock management and makes future system expansion easier.

Another major advantage is its combination of local monitoring and advanced communication. Users can check values directly on the display, receive visual and audible alerts, and simultaneously integrate the sensor into remote platforms with high security and wide protocol compatibility.

The combination of PoE, display, industrial protocols, secure communication and backup memory positions the TA3611 as a premium solution for professional environmental monitoring.

Technical specifications - TA3611

Specification	Value
Identification
Code	TA3611
Warranty	3 years
Measured values
Measured quantities	Temperature / Relative humidity / Calculated values / CO2
Temperature measuring range	Depending on the connected DSxx probe
Temperature accuracy	Depending on the connected DSxx probe
Temperature resolution	0.1 °C
Humidity measuring range	Depending on the connected DSxx probe
Humidity accuracy	Depending on the connected DSxx probe
Humidity resolution	0.1 % RH
Dew point measuring range	Depending on the connected DSxx probe
Dew point accuracy	Depending on the connected DSxx probe
Dew point resolution	0.1 °C
CO2 measuring range	0 to 10,000 ppm
CO2 accuracy	±(100 ppm + 5% of reading) at 23 °C and 1,013 hPa
CO2 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	IP30 (electronics)
Dimensions	116 × 85 × 42 mm (without connected probe)
Weight	220 g
User accounts	4 accounts / 3 permission levels
Security	HTTPS, SNMPv3, TLS, custom certificate upload
Cloud and database	COMET Cloud / COMET Database
Backup memory	Integrated, more than 2600 records
RTC	Real-time clock with battery backup
Display	Backlit segmented LCD, 4 brightness levels
Local signalling	Three-colour LED (green / yellow / red) and acoustic alarm
Alarms	2 adjustable alarms per channel + system alarms
Mounting	Integrated detachable bracket
Firmware	Firmware update via web interface

Scope of delivery

1 x TA3611
Instruction Manual
Traceable Calibration Certificate
FREE FULL VERSION COMET Vision Analytical Software
COMET Cloud for 3 Months

FAQ - Frequently asked questions

What probes can be connected to the TA3611?

The device supports one external digital probe, either a temperature and humidity probe or the CO2G-10 NDIR CO2 probe.

Can the same unit be used for different applications?

Yes. One of the main advantages of the TA3611 is its flexibility: the same device can be used for T+RH or CO2 applications simply by changing the connected probe.

Does it provide local indication of measured values and alarms?

Yes. The TA3611 includes a backlit LCD display, three-colour LED indication and an acoustic alarm for clear local monitoring and immediate alarm signalling.

What communication protocols does it support?

It supports HTTP/HTTPS, HTTP GET (JSON, XML), Modbus TCP, SNMP v1/v2c/v3, SMTP, Syslog, IPv4/IPv6 and COMET Cloud.

Where is the TA3611 typically used?

It is typically used in data centres, laboratories, healthcare environments, industrial facilities, offices, schools, public buildings and cleanrooms, where flexible environmental monitoring and easy network integration are required.

Request a quote

Need a flexible Ethernet sensor for temperature, humidity or CO2 monitoring, with display, alarms and PoE? Request a quote for the TA3611 and integrate reliable environmental monitoring into your system with confidence.