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Sensor for Two Pt1000 Temperature Probes, Ethernet Output and PoE

The TA4621 model is a compact Ethernet sensor designed for precise temperature measurement using two external Pt1000 probes.

This type offers two independent inputs with an optimized measuring range of -200 °C to +260 °C and an accuracy of ±0.2 °C. Probe connections are realized via practical CINCH connectors, allowing one device to monitor temperature differences or two separate locations simultaneously.

The device features a backlit LCD display, complete alarm signaling (LED and acoustic), and PoE support. Significant features include inter-channel calculations and software compensation for probe cable error.

This makes the TA4621 ideal for demanding industrial processes, monitoring two freezers at once, or installation into superior systems.

Main Benefits:

  • 2× Pt1000 input for simultaneous precise temperature measurement
  • Ability to monitor temperature differences
  • Extreme temperature measuring range from -200 °C
  • Backlit LCD display, acoustic and LED alarm signaling
  • Power supply 5–24 V or PoE
  • Integrated backup memory
  • Modern web interface, IPv4/IPv6 support, Modbus TCP, COMET Cloud, and fully encrypted communication (HTTPS, SNMPv3, TLS)
  • Integrated detachable bracket for easy installation

  • code
    TA4621
  • Warranty
    3 years
  • On request

Technical data

Measured value

Temperature

TEMPERATURE SENSOR – external Pt1000 probe

Measuring range -200 to +260 °C
Accuracy ±0.2 °C (−200 to +100 °C),
±0.2% of reading (+100 to +260 °C)
Resolution 0.1 °C

GENERAL TECHNICAL DATA

Operating temperature range -30 to +60 °C
Measurement channels 2× external Pt1000 temperature probe; CINCH connector
Supported temperature units degrees Celsius (°C), degrees Fahrenheit (°F)
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 2 s
Ingress protection (IP rating) IP30 (electronics)
Dimensions 116 × 85 × 42 mm (without connected probe)
Weight 240 g
Warranty 3 years

Optional accessories and download

Temperature probe Pt1000TG8/C, CINCH connector

Temperature probe Pt1000TG8/C, CINCH connector

Temperature range: -80 to 200°C
code SN104C
Price On request
In stock 120 pcs
Temperature probe Pt1000TG8/C, CINCH connector, cable 2 meters

Temperature probe Pt1000TG8/C, CINCH connector, cable 2 meters

Temperature range: -80 to 200°C
code SN105C
Price On request
In stock 153 pcs
Temperature probe Pt1000TG8/C, CINCH connector, cable 5 meters

Temperature probe Pt1000TG8/C, CINCH connector, cable 5 meters

Temperature range: -80 to 200°C
code SN108C
Price On request
In stock 136 pcs
Temperature probe Pt1000TG8/C, CINCH connector, cable 10 meters

Temperature probe Pt1000TG8/C, CINCH connector, cable 10 meters

Temperature range: -80 to 200°C
code SN113C
Price On request
In stock 67 pcs
Temperature probe Pt1000TG7/C, CINCH connector

Temperature probe Pt1000TG7/C, CINCH connector

Temperature range: -50 to 200°C
code SN164C
Price On request
In stock 19 pcs
Temperature probe Pt1000TG7/C, CINCH connector, cable 2 meters

Temperature probe Pt1000TG7/C, CINCH connector, cable 2 meters

Temperature range: -50 to 200°C
code SN165C
Price On request
In stock 16 pcs
Temperature probe Pt1000TG7/C, CINCH connector, cable 5 meters

Temperature probe Pt1000TG7/C, CINCH connector, cable 5 meters

Temperature range: -50 to 200°C
code SN166C
Price On request
In stock 18 pcs
Temperature probe Pt1000TG7/C, CINCH connector, cable 10 meters

Temperature probe Pt1000TG7/C, CINCH connector, cable 10 meters

Temperature range: -50 to 200°C
code SN167C
Price On request
In stock 83 pcs
Temperature probe 2304-220/C, CINCH connector, cable 1 meter

Temperature probe 2304-220/C, CINCH connector, cable 1 meter

Temperature range: -30 to 220°C
code SN168C
Price On request
In stock 6 pcs
Temperature probe 2021-150/C, CINCH connector, cable 1 meter

Temperature probe 2021-150/C, CINCH connector, cable 1 meter

Temperature range: -30 to 150°C
code SN169C
Price On request
In stock 2 pcs
Temperature probe PTS350A-2/C, CINCH connector, cable 2 meters

Temperature probe PTS350A-2/C, CINCH connector, cable 2 meters

Temperature range: -30 to 130°C
code SN170C
Price On request
In stock 11 pcs
Temperature probe 2034-220/C, CINCH connector, cable 1 meter

Temperature probe 2034-220/C, CINCH connector, cable 1 meter

Temperature range: -30 to 150°C
code SN175C
Price On request
In stock 9 pcs
Ambient temperature probe, 200-80/C

Ambient temperature probe, 200-80/C

Temperature range: -30 to 80°C
code SN177
Price On request
In stock 2 pcs
Temperature probe 2061-200/C, CINCH connector, cable 1 meter

Temperature probe 2061-200/C, CINCH connector, cable 1 meter

Temperature range: -50 to 200°C
code SN178C
Price On request
In stock on request
Temperature probe 2061-200/C, CINCH connector, cable 2 meters

Temperature probe 2061-200/C, CINCH connector, cable 2 meters

Temperature range: -50 to 200°C
code SN179C
Price On request
In stock 2 pcs
Temperature probe 2061-200/C, CINCH connector, cable 5 meters

Temperature probe 2061-200/C, CINCH connector, cable 5 meters

Temperature range: -50 to 200°C
code SN180C
Price On request
In stock 17 pcs
Temperature probe 2061-200/C, CINCH connector, cable 10 meters

Temperature probe 2061-200/C, CINCH connector, cable 10 meters

Temperature range: -50 to 200°C
code SN181C
Price On request
In stock 10 pcs
Temperature probe PTS350A-5/C, CINCH connector, cable 5 meters

Temperature probe PTS350A-5/C, CINCH connector, cable 5 meters

Temperature range: -30 to 130°C
code SN182C
Price On request
In stock on request
Temperature probe PTS350A-10/C, CINCH connector, cable 10 meters

Temperature probe PTS350A-10/C, CINCH connector, cable 10 meters

Temperature range: -30 to 130°C
code SN183C
Price On request
In stock 8 pcs
Temperature probe Pt1000TGL40/C, CINCH connector, cable 1 meter

Temperature probe Pt1000TGL40/C, CINCH connector, cable 1 meter

Temperature range: -30 to 80°C
code SN185C
Price On request
In stock 16 pcs
Temperature probe Pt1000TGL40/C, CINCH connector, cable 2 meters

Temperature probe Pt1000TGL40/C, CINCH connector, cable 2 meters

Temperature range: -30 to 80°C
code SN186C
Price On request
In stock 16 pcs
Temperature probe Pt1000TGL40/C, CINCH connector, cable 5 meters

Temperature probe Pt1000TGL40/C, CINCH connector, cable 5 meters

Temperature range: -30 to 80°C
code SN187C
Price On request
In stock 22 pcs
Temperature probe Pt1000TGL40/C, CINCH connector, cable 10 meters

Temperature probe Pt1000TGL40/C, CINCH connector, cable 10 meters

Temperature range: -30 to 80°C
code SN188C
Price On request
In stock 10 pcs
Temperature probe Pt1000TR160/C, CINCH connector, cable 1 meter

Temperature probe Pt1000TR160/C, CINCH connector, cable 1 meter

Temperature range: -30 to 80°C
code SN199C
Price On request
In stock 19 pcs
Temperature probe Pt1000TR160/C, CINCH connector, cable 2 meters

Temperature probe Pt1000TR160/C, CINCH connector, cable 2 meters

Temperature range: -30 to 80°C
code SN200C
Price On request
In stock 38 pcs
Temperature probe Pt1000TR160/C, CINCH connector, cable 5 meters

Temperature probe Pt1000TR160/C, CINCH connector, cable 5 meters

Temperature range: -30 to 80°C
code SN201C
Price On request
In stock 82 pcs
Temperature probe Pt1000TR160/C, CINCH connector, cable 10 meters

Temperature probe Pt1000TR160/C, CINCH connector, cable 10 meters

Temperature range: -30 to 80°C
code SN202C
Price On request
In stock 79 pcs
Temperature probe Pt1000TR160/C, CINCH connector, cable 15 meters

Temperature probe Pt1000TR160/C, CINCH connector, cable 15 meters

Temperature range: -30 to 80°C
code SN203C
Price On request
In stock 92 pcs
Temperature probe Pt1000TR160/C, CINCH connector, cable 20 meters

Temperature probe Pt1000TR160/C, CINCH connector, cable 20 meters

Temperature range: -30 to 80°C
code SN204C
Price On request
In stock 27 pcs
Stick-in probe 2091-250/C, CINCH connector, cable 1 meter

Stick-in probe 2091-250/C, CINCH connector, cable 1 meter

Temperature range: -50 to 250°C
code SN210C
Price On request
In stock 5 pcs
Stick-in probe 2091-250/C, CINCH connector, cable 2 meters

Stick-in probe 2091-250/C, CINCH connector, cable 2 meters

Temperature range: -50 to 250°C
code SN211C
Price On request
In stock 2 pcs
Stick-in probe 2091-250/C, CINCH connector, cable 5 meters

Stick-in probe 2091-250/C, CINCH connector, cable 5 meters

Temperature range: -50 to 250°C
code SN212C
Price On request
In stock 1 pcs
Stick-in probe 2091-250/C, CINCH connector, cable 10 meters

Stick-in probe 2091-250/C, CINCH connector, cable 10 meters

Temperature range: -50 to 250°C
code SN213C
Price On request
In stock on request
Temperature probe Pt1000TR125/C, CINCH connector, cable 1 meter

Temperature probe Pt1000TR125/C, CINCH connector, cable 1 meter

Temperature range: -190 to 150°C
code SN239C
Price On request
In stock 4 pcs
Temperature probe Pt1000TR125/C, CINCH connector, cable 2 meters

Temperature probe Pt1000TR125/C, CINCH connector, cable 2 meters

Temperature range: -190 to 150°C
code SN240C
Price On request
In stock 8 pcs
Temperature probe Pt1000TR125/C, CINCH connector, cable 5 meters

Temperature probe Pt1000TR125/C, CINCH connector, cable 5 meters

Temperature range: -190 to 150°C
code SN241C
Price On request
In stock 22 pcs
Temperature probe Pt1000TR125/C, CINCH connector, cable 10 meters

Temperature probe Pt1000TR125/C, CINCH connector, cable 10 meters

Temperature range: -190 to 150°C
code SN242C
Price On request
In stock 15 pcs
Temperature probe Pt1000TR050S/C, CINCH connector, cable 1 meter

Temperature probe Pt1000TR050S/C, CINCH connector, cable 1 meter

Temperature range: -50 to 400°C
Discontinued
Ultra thin temperature probe Pt1000TG3/C, CINCH connector

Ultra thin temperature probe Pt1000TG3/C, CINCH connector

Temperature range: -50 to 200°C
code SN252C
Price On request
In stock 509 pcs
Temperature probe Pt1000TR050S/C, CINCH connector, cable 10 meters

Temperature probe Pt1000TR050S/C, CINCH connector, cable 10 meters

Temperature range: -50 to 400°C
Discontinued
Temperature probe Pt1000TG8Ex/C, CINCH connector, for ATEX zone II

Temperature probe Pt1000TG8Ex/C, CINCH connector, for ATEX zone II

Temperature range: -30 to 180°C
code SN263C
Price On request
In stock on request
Temperature probe Pt1000TG8Ex/C, CINCH connector, for ATEX zone II, cable 2 meters

Temperature probe Pt1000TG8Ex/C, CINCH connector, for ATEX zone II, cable 2 meters

Temperature range: -30 to 180°C
code SN264C
Price On request
In stock on request
Temperature probe Pt1000TG8Ex/C, CINCH connector, for ATEX zone II, cable 5 meters

Temperature probe Pt1000TG8Ex/C, CINCH connector, for ATEX zone II, cable 5 meters

Temperature range: -30 to 180°C
code SN265C
Price On request
In stock 2 pcs
Temperature probe Pt1000TG8Ex/C, CINCH connector, for ATEX zone II, cable 10 meters

Temperature probe Pt1000TG8Ex/C, CINCH connector, for ATEX zone II, cable 10 meters

Temperature range: -30 to 180°C
code SN266C
Price On request
In stock on request
Temperature probe Pt1000TG8Ex/C, CINCH connector, for ATEX zone II, cable 15 meters

Temperature probe Pt1000TG8Ex/C, CINCH connector, for ATEX zone II, cable 15 meters

Temperature range: -30 to 180°C
code SN267C
Price On request
In stock on request
Temperature probe Pt1000TR050M/C, CINCH connector, cable 1 meter

Temperature probe Pt1000TR050M/C, CINCH connector, cable 1 meter

Temperature range: -50 to 400°C
code SN270C
Price On request
In stock 4 pcs
Temperature probe Pt1000TR050M/C, CINCH connector, cable 2 meters

Temperature probe Pt1000TR050M/C, CINCH connector, cable 2 meters

Temperature range: -50 to 400°C
code SN271C
Price On request
In stock 8 pcs
Temperature probe Pt1000TR050M/C, CINCH connector, cable 5 meters

Temperature probe Pt1000TR050M/C, CINCH connector, cable 5 meters

Temperature range: -50 to 400°C
code SN272C
Price On request
In stock on request
Temperature probe Pt1000TR050M/C, CINCH connector, cable 10 meters

Temperature probe Pt1000TR050M/C, CINCH connector, cable 10 meters

Temperature range: -50 to 400°C
code SN273C
Price On request
In stock on request

AC/DC adapter 230Vac to 5Vdc/2.1 A, EU

AC/DC adapter 230Vac to 5Vdc/2.1 A, EU

code A1879eu
Price On request
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AC/DC adapter 230Vac to 5Vdc/2.1 A, UK

AC/DC adapter 230Vac to 5Vdc/2.1 A, UK

code A1879uk
Price On request
In stock on request
AC/DC adapter 230Vac to 5Vdc/2.1 A, US

AC/DC adapter 230Vac to 5Vdc/2.1 A, US

code A1879us
Price On request
In stock on request

Accredited temperature calibration

Accredited temperature calibration

code SLU001
Price On request
In stock on request

KIT-GSM with modem

KIT-GSM with modem

code KIT-GSM-W
Price On request
In stock on request
300Mbps Wireless N Nano Router

300Mbps Wireless N Nano Router

code TL-WIFI
Price On request
In stock 5 pcs

Magnetic holder for Web Sensors PAxxxx and TAxxxx

Magnetic holder for Web Sensors PAxxxx and TAxxxx

code SP104
Price On request
In stock on request

COMET Database

COMET Database

code CDB
Price On request
In stock yes
COMET Cloud

COMET Cloud

code cloud
Price On request
In stock yes
COMET Cloud Lite for Android & iOS

COMET Cloud Lite for Android & iOS

code cloud_app
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In stock yes
COMET VISION - Analytical Software for Dataloggers and Multiloggers

COMET VISION - Analytical Software for Dataloggers and Multiloggers

code CV
Price FREE
In stock yes
Database Viewer for Comet Database

Database Viewer for Comet Database

code DBV
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In stock yes

Software

download-icon Comet Database One Click Installer (21.1-V)
487.31 MB
download-icon Database Viewer 3.20.0.0 dbapi 21.1
24.33 MB
download-icon Conversions - application for recalculation of values
694.50 KB
download-icon COMET Cloud Lite - Android (Google Play)
download-icon COMET Cloud Lite - iOS (App Store)

Others

download-icon Terms and Conditions COMET System s.r.o.
133.12 KB

Manuals

download-icon Quick Start Manual
961.10 KB

Catalogs

download-icon CATALOG - WebSensor with Ethernet output
4.06 MB
download-icon Catalogue Sheets - COMET Premium WebSensors 2.0
107.88 KB

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