Skip to main content Skip to search Skip to main navigation

COMET T3510 – Ethernet WebSensor for Temperature -30 to +80 °C and Humidity 0–100 %RH

COMET T3510 WebSensor T+RH Ethernet 

The COMET T3510 is a professional Ethernet WebSensor (T-Line) for precise measurement of temperature and relative humidity – equipped with integrated sensors and a dual-line LCD display. As a true remote thermometer-hygrometer with Ethernet interface, it is the ideal solution for building automation, server rooms, warehouses, cleanrooms, museums, greenhouses, production monitoring, or any environment where network-based climate data needs to be remotely monitored.

The high-precision capacitive polymer sensor ensures excellent long-term stability and accuracy. In addition to the primary values, the T3510 automatically calculates all key humidity parameters: dew point, absolute humidity, specific humidity, mixing ratio, and specific enthalpy – all directly accessible through the integrated web interface or via Modbus TCP.

The large dual-line LCD can display temperature, humidity, or dew point and can be switched off for continuous operation. The sensor integrates seamlessly into networks via Ethernet (RJ45) – with direct connection to the COMET Cloud (3 months free, then 1 credit/year) for charts, exports, alarms, and remote access via app or browser. Alternatively, Modbus TCP, SNMP, JSON, or XML can be used for integration into your own SCADA/BMS/IoT system.

The robust housing and the operating temperature range from –30 to +80 °C make the T3510 a reliable partner for continuous use – indoors or outdoors. No dedicated server is required – the COMET Cloud handles all data processing.

Why the COMET T3510 is the professional WebSensor:

  • 2-in-1: Temperature + Humidity – with dew point & all humidity parameters
  • Ethernet interface – direct network integration
  • COMET Cloud ready – 3 months free, then cost-effective
  • Modbus TCP, SNMP, JSON, XML – open for third-party systems
  • Large dual-line LCD – switchable
  • High accuracy – Temp. ±0.6 °C | Humidity ±2.5 %RH
  • Fast measurement interval: 2 s
  • Remote alarm function – Email, SNMP Trap, Syslog
  • IP65 enclosure – suitable for harsh environments
  • 3-year warranty

Technical data T3510:

  • Temperature range: –30 to +80 °C (±0.6 °C)
  • Humidity: 0 to 100 %RH (±2.5 %RH from 5–95 % at 23 °C)
  • Dew point: –60 to +80 °C (±1.5 °C at T<25 °C and RH>30 %)
  • Resolution: 0.1 °C / 0.1 %RH
  • Measurement interval: 2 s
  • Interface: Ethernet (RJ45), Modbus TCP
  • Cloud: COMET Cloud (3 months free)
  • Protocols: WWW, Modbus TCP, SNMPv1, SOAP, XML
  • Alarm protocols: Email, SNMP Trap, Syslog
  • Display: Dual-line LCD, switchable
  • Power supply: 9–30 V DC or PoE (optional)
  • Protection rating: IP65
  • Operating temperature: –30 to +80 °C
  • Warranty: 3 years

Perfect for:

  • Building automation and BMS systems
  • Data centers and server rooms
  • Cleanrooms and pharmaceutical production
  • Food storage and cold rooms
  • Museums, archives, and depositories
  • Production monitoring
  • Environmental and climate monitoring
  • Remote monitoring without a server

Installation & commissioning – done in minutes

Connect the network cable and power supply, assign the IP address via DHCP or static – done. The integrated web interface guides you through the configuration. With COMET Cloud, you are online in seconds – no server required.

Summary:

  • Ambient temperature, relative humidity, T-Line WebSensor
  • Remote alarm
  • WebSensor with integrated sensors for relative humidity and temperature, designed as a weather sensor
  • The high-precision capacitive polymer sensor ensures excellent long-term calibration stability and maximum accuracy
  • The dual-line LCD display is a valuable feature
  • Measured values are also converted into various humidity parameters: dew point temperature, absolute humidity, specific humidity, mixing ratio, and specific enthalpy

Scope of delivery:

  • T3510
  • User manual
  • Traceable calibration certificate
  • Free TSensor software for transmitter configuration
  • COMET Cloud for 3 months
  • Power supply not included
Datasheets
Datasheet 1

Oops! Your browser doesn't support PDFs!

Datasheet 1 (1.59 MB)
Datasheet 2

Oops! Your browser doesn't support PDFs!

Datasheet 2 (138.14 KB)

Web Sensor – Remote Thermometer and Hygrometer with Ethernet Interface

Measured parameters

  • Temperature
  • Relative humidity
  • Calculated values (e.g. dew point)

Temperature sensor

  • Measuring range: −30 to +80 °C
  • Accuracy: ±0.6 °C
  • Resolution: 0.1 °C

Humidity sensor

  • Measuring range: 0 to 100 % RH
  • Accuracy: ±2.5 % RH (5 to 95 % RH at 23 °C)
  • Resolution: 0.1 % RH

Dew point

  • Measuring range: −60 to +80 °C
  • Accuracy: ±1.5 °C at ambient temperature < 25 °C and RH > 30 %
  • Resolution: 0.1 °C

General technical data

  • Operating temperature: −30 to +80 °C
  • Channels: Internal temperature and humidity sensor
  • Calculated values: Dew point, absolute humidity, specific humidity, mixing ratio, specific enthalpy
  • Output: Ethernet
  • Humidity sensor temperature compensation: Across the entire temperature range
  • Measurement interval: 2 s
  • Available temperature units: °C, °F
  • Communication protocols: WWW, Modbus TCP, SNMPv1, SOAP, XML
  • Alarm protocols: E-mail, SNMP Trap, Syslog
  • Power supply: 9–30 V DC
  • Protection rating: IP30
  • Dimensions: 88.5 × 147.5 × 39.5 mm; probe length 75 mm
  • Weight: approx. 155 g
  • Warranty: 3 years
Skip product gallery

Suitable power supply

COMET A1515eu – Switching Power Supply 100-240 V AC to 12 V DC / 1 A
COMET A1515eu – Switching Power Supply 100-240 V AC to 12 V DC / 1 A
COMET A1515eu 230V to 12V/1A power supply with EU plug and 5.5 x 2.1 mm coaxial connector.
Product number: A1515eu

Regular price: €29.00
Skip product gallery

Communication devices

COMET SP043 – LoRaWAN Gateway Milesight UG65 (IP65, Outdoor-Ready) for EU863-870
COMET SP043 – LoRaWAN Gateway Milesight UG65 (IP65, Outdoor-Ready) for EU863-870
The COMET SP043 LoRaWAN Gateway Milesight UG65 wirelessly connects COMET Wx9xx sensors to the cloud – IP65, PoE & LTE.
Product number: SP043

Regular price: €752.00
COMET SP042 – LoRaWAN Gateway SenseCAP M2 for EU863-870
COMET SP042 – LoRaWAN Gateway SenseCAP M2 for EU863-870
COMET SP042 LoRaWAN Gateway SenseCAP M2 wirelessly connects COMET Wx9xx sensors to COMET Cloud via Ethernet/PoE.
Product number: SP042

Regular price: €263.00
COMET KIT-GSM – Rugged Industrial GSM Modem (Cinterion BGS5)
COMET KIT-GSM – Rugged Industrial GSM Modem (Cinterion BGS5)
COMET KIT-GSM rugged GSM modem with RS232/USB, watchdog timer, and Java for remote monitoring and M2M applications.
Product number: KIT-GSM-W

Regular price: €228.00
COMET SP044 – Compact LoRaWAN Gateway Milesight UG63 for EU863-870
COMET SP044 – Compact LoRaWAN Gateway Milesight UG63 for EU863-870
The COMET SP044 LoRaWAN Gateway Milesight UG63 wirelessly connects COMET Wx9xx sensors to the cloud via Ethernet and USB-C.
Product number: SP044

Regular price: €188.00
300 Mbps Wi-Fi N Nano Router
300 Mbps Wi-Fi N Nano Router
Nano Router - The world's smallest Wi-Fi router for exceptionally easy operation. Wi-Fi data transfer rate of 300 Mbps.
Product number: TL-WIFI

Regular price: €49.00
COMET TL-POE10R – Reliable PoE Splitter (IEEE 802.3af)
COMET TL-POE10R – Reliable PoE Splitter (IEEE 802.3af)
COMET TL-POE10R PoE splitter IEEE 802.3af with switchable 5V/9V/12V output for transmitters and loggers.
Product number: TL-POE

Regular price: €39.00
Skip product gallery

Suitable bracket

Sensor Mounting Bracket for 19" Racks
Sensor Mounting Bracket for 19" Racks
Mounting bracket for 19" racks
Product number: MP046

Regular price: €18.00

Manufacturer Information:

COMET SYSTEM, s.r.o.

Bezručova 2901

756 61 Rožnov pod Radhoštěm
Czech Republic

Phone: +420 571 653 990

Email: info@cometsystem.com

Responsible person:

Didactum® Security GmbH

Im Mühlenfeld 4

48163 Münster
Deutschland

Fon: (+49) 250 19 71 63 54 / (+49) 171 33 11 577

Email: info@didactum-security.de

Questions?

You have questions about Comet products?

You would like a quote?

Contact us