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COMET T4411 Pt1000 Temperature Transmitter RS485

COMET T4411 Temperature Transmitter RS485 Pt1000

The COMET T4411 is a high-precision temperature transmitter designed exclusively for applications where only temperature needs to be measured and transmitted digitally. It is specifically developed for external Pt1000 sensors and covers an extremely wide measuring range from –200 °C to +600 °C.

With its fully waterproof IP65 enclosure and robust construction, the T4411 is ideal for demanding industrial environments: cryogenic applications, cold storage, ovens, dryers, steam lines, chemical plants, food production, or laboratory environments. The internal electronics operate reliably from –30 to +80 °C.

The RS485 interface with Modbus RTU protocol (enabled by default) allows simple integration into any PLC, SCADA, or building management system. Alternatively, ARION and Advantech ADAM protocols are also available. The large, high-contrast dual-line LCD displays the current temperature in either °C or °F and can be switched off completely to save power or remain unobtrusive.

State-of-the-art microprocessor technology ensures maximum long-term stability and automatic detection of probe disconnection or short-circuit – you always receive a reliable fault indication. With an accuracy of ±0.2 °C (without probe) and a resolution of 0.1 °C, the T4411 belongs to the top tier of industrial temperature measurement devices.

Why the COMET T4411 is your ideal choice:

  • Extreme measuring range –200 to +600 °C with external Pt1000 sensor
  • High accuracy ±0.2 °C (without probe), resolution 0.1 °C
  • Completely waterproof IP65 – suitable for harsh environments
  • RS485 with Modbus RTU preconfigured – ready for immediate use
  • Large dual-line display in °C/°F – switchable off
  • Automatic probe fault detection – maximum operational safety
  • Wide supply range 9–30 V DC – compatible with most systems
  • Compact & lightweight – only 88.5 × 117 × 39.5 mm, approx. 145 g
  • 3-year warranty – tested COMET quality, made in the EU

Technical data:

  • Measuring range: –200 to +600 °C (depending on Pt1000 sensor)
  • Accuracy: ±0.2 °C (without temperature probe)
  • Resolution: 0.1 °C
  • Sensor input: external Pt1000 / 3850 ppm
  • Electronics operating temperature: –30 to +80 °C
  • Output: RS485
  • Communication protocols: Modbus RTU, ARION, Advantech ADAM
  • Temperature units: °C or °F (selectable)
  • Power supply: 9–30 V DC
  • Protection rating: IP65
  • Dimensions: 88.5 × 117 × 39.5 mm
  • Weight: approx. 145 g
  • Warranty: 3 years

Typical applications:

  • Cryogenics and deep-freeze systems
  • High-temperature ovens and drying equipment
  • Steam and hot-water pipelines
  • Food and pharmaceutical production
  • Chemical processes
  • Machine and plant monitoring
  • Laboratory and test bench applications
  • Power generation and energy plants

Installation – done in just a few minutes

Mount the unit to the wall or equipment using two screws, connect the Pt1000 probe, power supply, and RS485 – done. The large cable gland and self-clamping terminals make installation fast and easy.

Note:


A separate Pt1000 sensor is required for operation (to be ordered separately).

Summary:

  • The temperature transmitter for Pt1000 sensors is housed in a robust, waterproof enclosure.
  • Temperature display can be switched between °C and °F.
  • A large dual-line LCD provides an additional visual advantage.
  • The LCD can be turned off.
  • The computer-controlled design ensures maximum long-term stability and reliable fault indication.

Scope of delivery:

  • T4411 unit
  • User manual
  • Traceable calibration certificate
  • Free TSensor software for transmitter configuration
  • NO Pt1000 sensor included – to be ordered separately
Datasheets
Datasheet 1

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Datasheet 1 (616.44 KB)
Datasheet 2

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Datasheet 2 (125.68 KB)

Temperature Transmitter with RS485 Interface

Measured values

  • Temperature

Temperature sensor – external Pt1000 probe (not included in delivery)

  • Measuring range: −200 to +600 °C
  • Accuracy: ±0.2 °C (without temperature probe)
  • Resolution: 0.1 °C

General technical data

  • Operating temperature: −30 to +80 °C
  • Channels: 1× external temperature probe
  • Output: RS485
  • Available temperature units: °C, °F
  • Communication protocols: ModBus RTU, ARION, Advantech ADAM
  • Power supply: 9–30 V DC
  • Protection rating: IP65
  • Dimensions: 88.5 × 117 × 39.5 mm
  • Weight: approx. 145 g
  • Warranty: 3 years
  • The temperature sensor must be purchased separately
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Available temperature sensors

COMET SN199 Pt1000TR160/0 Submersible Probe IP67 -30 to +80 °C
COMET SN199 Pt1000TR160/0 Submersible Probe IP67 -30 to +80 °C
COMET SN199 Pt1000TR160/0 – Affordable IP67 submersible probe, -30 to +80 °C, PVC cable, without connector.
Product number: SN199-1

Regular price: From €21.00
COMET SN185 Pt1000TGL40/0 Immersion Probe IP67 -30 to +80 °C
COMET SN185 Pt1000TGL40/0 Immersion Probe IP67 -30 to +80 °C
COMET SN185 Pt1000 immersion probe IP67, 40 mm stainless steel, -30 to +80 °C, PVC cable, without connector.
Product number: SN185-1

Regular price: From €25.00
COMET Pt1000 Immersion Probe IP67C, -30 to +80 °C, RCA connector
COMET Pt1000 Immersion Probe IP67C, -30 to +80 °C, RCA connector
COMET SN199C Pt1000 Immersion Probe IP67, -30 to +80 °C with 1 m PVC cable and RCA connector.
Product number: SN199C-1

Regular price: From €27.00
COMET SN104 Pt1000 Temperature Probe IP67 -80 to +200°C
COMET SN104 Pt1000 Temperature Probe IP67 -80 to +200°C
COMET SN104 Pt1000 temperature probe IP67, -80 to +200°C, silicone cable, stainless steel, without connector.
Product number: SN104

Regular price: From €30.37
COMET Pt1000 Immersion Probe CINCH -30 to +80°C
COMET Pt1000 Immersion Probe CINCH -30 to +80°C
COMET SN185C Pt1000 Immersion Probe IP67 -30 to +80°C with PVC cable and CINCH connector.
Product number: SN185C-1

Regular price: From €31.00
COMET Pt1000TG3/0 Ultra-Thin Probe 3 mm -50 to +200 °C
COMET Pt1000TG3/0 Ultra-Thin Probe 3 mm -50 to +200 °C
COMET SN252 Pt1000TG3/0 – Ultra-thin 3 mm IP67 probe, -50 to +200 °C, Teflon cable, lightning fast.
Product number: SN252-1

Regular price: From €35.00
COMET SN104C – Waterproof Pt1000 Submersible Probe IP67, -80 to +200°C
COMET SN104C – Waterproof Pt1000 Submersible Probe IP67, -80 to +200°C
COMET SN104C Pt1000 Submersible Probe IP67, -80 to +200°C with silicone cable and RCA connector, Class A.
Product number: SN104C-1

Regular price: From €35.00
COMET SN164 Pt1000 Surface Temperature Sensor -50 to +200 °C
COMET SN164 Pt1000 Surface Temperature Sensor -50 to +200 °C
COMET SN164 Pt1000 surface temperature sensor made of brass, -50 to +200 °C, IP65, silicone cable, without connector.
Product number: SN164-1

Regular price: From €42.00
COMET PTS350A-2/0 Pt1000 Pipe Surface Sensor
COMET PTS350A-2/0 Pt1000 Pipe Surface Sensor
COMET PTS350A-2/0 Pt1000 pipe surface sensor with clamp, -30 to +130 °C, without connector.
Product number: SN170-1

Regular price: From €44.00
COMET Pt1000TG68/0 Immersion Probe IP67 -50 to +150 °C
COMET Pt1000TG68/0 Immersion Probe IP67 -50 to +150 °C
COMET Pt1000TG68/0 – Permanently submersible stainless steel probe, IP67, -50 to +150 °C, silicone cable, without connector.
Product number: SN232-1

Regular price: From €46.00
COMET SN164C – Pt1000 Surface Probe IP65, -50 to +200 °C
COMET SN164C – Pt1000 Surface Probe IP65, -50 to +200 °C
COMET SN164C Pt1000 Surface Probe IP65, -50 to +200 °C, with brass housing and RCA connector.
Product number: SN164C-1

Regular price: From €48.00
COMET Pt1000 Tube Probe with RCA Connector and 2 m Cable
COMET Pt1000 Tube Probe with RCA Connector and 2 m Cable
COMET SN170C Pt1000 Tube Probe, IP65, -30 to +130 °C, with 40 cm probe band and 2 m silicone cable.
Product number: SN170C

Regular price: €50.00
COMET Pt1000TG8Ex/0 ATEX Zone 2 -30 to +180 °C
COMET Pt1000TG8Ex/0 ATEX Zone 2 -30 to +180 °C
COMET SN263 Pt1000TG8Ex/0 – ATEX Zone 2/22 Immersion Probe, -30 to +180 °C, IP67, without connector.
Product number: SN263-1

Regular price: From €54.00
COMET explosion-proof Pt1000 immersion probe, -30 to +180 °C, RCA connector
COMET explosion-proof Pt1000 immersion probe, -30 to +180 °C, RCA connector
COMET SN263C ATEX Pt1000 immersion probe, Zone 2/22, -30 to +180 °C, with silicone cable and RCA connector.
Product number: SN263C-1

Regular price: From €60.00
COMET Pt1000TR050M/0 Exhaust Gas Probe up to 450 °C
COMET Pt1000TR050M/0 Exhaust Gas Probe up to 450 °C
COMET SN270 Pt1000TR050M/0 – Exhaust gas probe up to 400 °C (450 °C for short periods), Teflon cable, IP64, without connector.
Product number: SN270-1

Regular price: From €69.00
COMET Pt1000 flue gas probe -50 to +400 °C, RCA connector
COMET Pt1000 flue gas probe -50 to +400 °C, RCA connector
COMET SN270C Pt1000 flue gas probe -50 to +400 °C with 1 m Teflon cable and RCA connector.
Product number: SN270C

Regular price: €75.00
COMET Pt1000TR125/0 Cryogenic Probe -190 to +150 °C
COMET Pt1000TR125/0 Cryogenic Probe -190 to +150 °C
COMET Pt1000TR125/0 Immersion Probe -190 to +150 °C, stainless steel, Teflon cable, IP67, without connector, cryogenically suitable.
Product number: SN239-1

Regular price: From €95.00
COMET Pt1000 Immersion Probe -190 to +150 °C for Cryogenics & Deep Freezing, RCA Connector
COMET Pt1000 Immersion Probe -190 to +150 °C for Cryogenics & Deep Freezing, RCA Connector
COMET SN239C Pt1000 Immersion Probe -190 to +150 °C with 1 m cable and RCA connector for cryogenic applications.
Product number: SN239C-1

Regular price: From €98.00
COMET 2061-200/0 Pt1000 Penetration Probe -50 to +200 °C
COMET 2061-200/0 Pt1000 Penetration Probe -50 to +200 °C
COMET 2061-200/0 Pt1000 Penetration Probe, 200 mm length, -50 to +200 °C, silicone cable, without connector.
Product number: SN178-1

Regular price: From €101.00
COMET 2061-200/C Pt1000 Stick-in Probe with RCA Connector
COMET 2061-200/C Pt1000 Stick-in Probe with RCA Connector
COMET 2061-200/C Pt1000 Stick-in Probe, 200 mm, -50 to +200 °C, for bulk materials, with 1 m cable and RCA connector.
Product number: SN178C-1

Regular price: From €104.00
COMET 2091-250/0 Pt1000 Penetration Probe -50 to +250 °C
COMET 2091-250/0 Pt1000 Penetration Probe -50 to +250 °C
COMET 2091-250/0 Pt1000 Penetration Probe 250 mm, -50 to +250 °C, Teflon cable, without connector, high temperature.
Product number: SN210-1

Regular price: From €106.00
COMET 2061-250/0 Pt1000 Penetrating Probe -30 to +250 °C
COMET 2061-250/0 Pt1000 Penetrating Probe -30 to +250 °C
COMET 2061-250/0 Pt1000 Penetrating Probe with cable, -30 to +250 °C, ideal for bulk materials and foodstuffs.
Product number: SN147-1

Regular price: From €109.35
COMET 2091-250/C – Pt1000 Stick-in Probe, -50 to +250 °C, RCA connector
COMET 2091-250/C – Pt1000 Stick-in Probe, -50 to +250 °C, RCA connector
COMET 2091-250/C Pt1000 Stick-in Probe 250 mm -50 to +250 °C for bulk materials and RCA connector.
Product number: SN210C-1

Regular price: From €112.00
COMET 2021-150/0 Pt1000 Penetration Probe -30 to +150 °C
COMET 2021-150/0 Pt1000 Penetration Probe -30 to +150 °C
COMET 2021-150/0 Pt1000 Penetration Probe 150 mm, 1 m cable, -30 to +150 °C, without connector.
Product number: SN169

Regular price: €136.00
COMET Pt1000 Stick-in Probe, -30 to +150 °C, 1 m cable, RCA connector
COMET Pt1000 Stick-in Probe, -30 to +150 °C, 1 m cable, RCA connector
COMET 2021-150/C Pt1000 Stick-in Probe, -30 to +150 °C, for bulk materials, with 1 m cable and RCA connector.
Product number: SN169C

Regular price: €142.00
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Suitable power supply

COMET A1510eu – Switching Power Supply 100-240 V AC to 12 V DC / 450 mA with EU Plug
COMET A1510eu – Switching Power Supply 100-240 V AC to 12 V DC / 450 mA with EU Plug
COMET A1510eu stable power supply 230V to 12V/450mA with EU plug and 5.5 x 2.1 mm coaxial connector.
Product number: A1510eu

Regular price: €29.00

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

Marsweg 17

48163 Münster
Deutschland

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

Email: info@didactum-security.de

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