COMET T4611 – PoE WebSensor for External Pt1000 Probe -200 to +600 °C

COMET T4611 – PoE WebSensor for External Pt1000 Probe –200 to +600 °C, ±0.2 °C, IEEE 802.3af, COMET Cloud 

The COMET T4611 is a professional PoE WebSensor (T‑Line) designed for external Pt1000 temperature probes – the ideal solution for high‑precision, network‑based temperature monitoring in industrial environments, process control, refrigeration systems, laboratories, storage facilities, and HVAC applications. With a measuring range of –200 to +600 °C and an accuracy of ±0.2 °C, it is perfectly suited for demanding applications where standard sensors reach their limits. Thanks to Power over Ethernet (IEEE 802.3af), it requires only a single network cable for both power and data, making installation simpler, cleaner, and more cost‑effective.

The sensor supports all standard Pt1000 probes (sold separately) and converts temperature readings with the highest precision into digital values (resolution 0.1 °C). The large dual‑line LCD clearly displays current readings and can be switched off during continuous operation. Using Ethernet (RJ45) with PoE, the T4611 integrates seamlessly into networks and connects directly to COMET Cloud (3 months free, then 1 Credit/year) for graphs, data export, alarms, and remote access via web browser or app.

The T4611 supports Modbus TCP, SNMP, JSON, and XML for integration into your own SCADA/BMS/IoT solution. The robust housing (IP30) and operating temperature range of –20 to +60 °C (sensor up to +600 °C) make it a reliable tool for harsh industrial environments, both indoors and outdoors. The sensor is maintenance‑free, long‑term stable, and supplied with a traceable calibration certificate – ensuring top quality and verifiable accuracy.

Why the COMET T4611 is the professional Pt1000 PoE WebSensor:

• Power over Ethernet IEEE 802.3af – power + data through one cable
• External Pt1000 input – –200 to +600 °C, ±0.2 °C
• Ethernet interface – direct network integration
• COMET Cloud ready – 3 months free, then affordable
• Modbus TCP, SNMP, JSON, XML – open for third‑party systems
• Large dual‑line LCD – switchable display
• Fast measurement interval 2 s
• Remote alarm function – e‑mail, SNMP Trap, Syslog
• IP30 protection – for indoor use
• 3‑year warranty

Technical data T4611:

• Temperature measuring range: –200 to +600 °C (depends on Pt1000 probe)
• Accuracy: ±0.2 °C
• Resolution: 0.1 °C
• Measurement interval: 2 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: –20 to +60 °C
• Protection rating: IP30
• Dimensions: 136 × 149 × 45 mm
• Weight: approx. 145 g
• Warranty: 3 years

Perfectly suited for:

• Refrigeration and cold storage systems
• Process and high‑temperature monitoring
• Building automation and BMS systems
• Laboratories and quality assurance
• Warehouses and production halls
• Remote temperature monitoring with Pt1000
• Integration into existing networks
• Installations with PoE support

Installation & setup – completed in minutes

Mount the device, connect the PoE network cable, plug in the Pt1000 probe – that’s it! The integrated web interface guides you through setup. Online via COMET Cloud within seconds – no additional power supply required.

Summary:

• Ambient temperature WebSensor for Pt1000 probes with Power over Ethernet (PoE) and remote alarm
• Supports Power over Ethernet according to IEEE 802.3af

Scope of delivery:

• T4611
• User manual
• Traceable calibration certificate
• Free TSensor software for transmitter configuration
• COMET Cloud for 3 months
• External probes not included in the delivery