COMET T3611 – PoE WebSensor for Temperature -30 to +105 °C and Humidity with External Cable Probe

COMET T3611 WebSensor T+RH PoE Cable Probe 

The COMET T3611 is a professional PoE WebSensor (T-Line) for precise temperature and relative humidity measurement – featuring a remote combination probe on a 1‑meter cable and Power over Ethernet (IEEE 802.3af). As a true remote thermometer-hygrometer with Ethernet interface, external probe, and PoE power supply, it is the ideal solution for flexible monitoring in climate chambers, drying facilities, ripening processes, data centers, cleanrooms, greenhouses, or any installation where the measuring point cannot be located directly at the device – and where power is conveniently supplied via the network cable.

The high‑precision capacitive polymer sensor ensures excellent long‑term stability and accuracy. The probe measures temperature up to +105 °C and humidity from 0 to 100 %RH. In addition to the primary values, the T3611 automatically calculates all major humidity parameters: dew point, absolute humidity, specific humidity, mixing ratio, and specific enthalpy – all directly available through the integrated web interface or via Modbus TCP.

The large dual‑line LCD displays temperature, humidity, or dew point (user‑selectable) and can be turned off for continuous operation. Via Ethernet (RJ45) with PoE, the sensor integrates seamlessly into networks – providing both power and data through a single cable. Direct connection to the COMET Cloud (3 months free, then 1 credit/year) enables charting, exporting, 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 operating temperature range of –20 to +60 °C (sensor probe up to +105 °C) make the T3611 a reliable instrument for demanding continuous operation – indoors or outdoors. PoE simplifies installation, reduces cabling, and eliminates the need for a separate power supply!

Why the COMET T3611 is the professional PoE WebSensor with cable probe:

• Power over Ethernet IEEE 802.3af – power and data through one cable
• External 1 m cable probe – flexible installation in demanding environments
• 2‑in‑1: Temperature + Humidity – probe rated up to +105 °C
• Ethernet interface – direct network connectivity
• COMET Cloud ready – 3 months free, low‑cost renewals
• Modbus TCP, SNMP, JSON, XML – compatible with third‑party systems
• Large dual‑line LCD – switchable display
• High precision – Temp. ±0.4 °C | Humidity ±2.5 %RH
• All humidity parameters integrated – dew point available immediately
• Remote alarm function – Email, SNMP Trap, Syslog
• IP65 housing – suitable for harsh environments
• 3‑year warranty

Technical data T3611:

• Temperature range: –30 to +105 °C (±0.4 °C)
• Relative 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
• Probe cable length: 1 meter
• Interface: Ethernet (RJ45) with PoE IEEE 802.3af
• 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: PoE IEEE 802.3af or 9–30 V DC
• Protection rating: IP65
• Operating temperature: –20 to +60 °C
• Warranty: 3 years

Ideal for:

• Building automation and BMS systems
• Climate chambers and drying installations
• Data centers and server rooms
• Cleanrooms and pharmaceutical production
• Food stores and cold storage facilities
• Museums, archives, and repositories
• Production monitoring
• Environmental and climate monitoring

Installation & commissioning – done in minutes

Mount the electronic housing, place the probe at the desired measuring location, connect the PoE network cable – done! The integrated web interface guides the configuration process. With COMET Cloud, you’re online in seconds – no separate power supply required.

Summary:

• Ambient temperature and relative humidity sensor with PoE function (Power over Ethernet)
• Remote alarm support
• PoE WebSensor with temperature and humidity probe via cable
• High‑precision capacitive polymer sensor for excellent long‑term stability and accuracy
• Dual‑line LCD display as an additional advantage
• Supports PoE according to IEEE 802.3af
• Measured values are converted into additional humidity parameters: dew‑point temperature, absolute humidity, specific humidity, mixing ratio, and specific enthalpy
• Supplied with a temperature and humidity probe including 1‑meter cable

Scope of delivery:

• T3611
• User manual
• Traceable calibration certificate
• Free TSensor software for transmitter configuration
• COMET Cloud access for 3 months