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Sensor for Two Pt1000 Temperature Probes, Ethernet Output and PoE

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
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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

Pt1000TG8/C, temperature probe

Pt1000TG8/C, temperature probe

Temperature range: -80 to 200°C
code SN104C
Price $75
In stock 120 pcs
Pt1000TG8/C, temperature probe, cable 2 m

Pt1000TG8/C, temperature probe, cable 2 m

Temperature range: -80 to 200°C
code SN105C
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Pt1000TG8/C, temperature probe, cable 5 m

Pt1000TG8/C, temperature probe, cable 5 m

Temperature range: -80 to 200°C
code SN108C
Price $95
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Pt1000TG8/C, temperature probe, cable 10 m

Pt1000TG8/C, temperature probe, cable 10 m

Temperature range: -80 to 200°C
code SN113C
Price $125
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Pt1000TG7/C, temperature probe

Pt1000TG7/C, temperature probe

Temperature range: -50 to 200°C
code SN164C
Price $103
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Pt1000TG7/C, temperature probe, cable 2 m

Pt1000TG7/C, temperature probe, cable 2 m

Temperature range: -50 to 200°C
code SN165C
Price $110
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Pt1000TG7/C, temperature probe, cable 5 m

Pt1000TG7/C, temperature probe, cable 5 m

Temperature range: -50 to 200°C
code SN166C
Price $121
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Pt1000TG7/C, temperature probe, cable 10 m

Pt1000TG7/C, temperature probe, cable 10 m

Temperature range: -50 to 200°C
code SN167C
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2301-220/C, temperature probe, cable 1 m

2301-220/C, temperature probe, cable 1 m

Temperature range: -30 to 220°C
code SN168C
Price $196
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2021-150/C, temperature probe, cable 1 m

2021-150/C, temperature probe, cable 1 m

Temperature range: -30 to 150°C
code SN169C
Price $308
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PTS350A-2/0, temperature probe, cable 2 m

PTS350A-2/0, temperature probe, cable 2 m

Temperature range: -30 to 130°C
code SN170C
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2034-220/C, temperature probe, cable 1 m

Temperature range: -30 to 150°C
code SN175C
Price $185
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Temperature range: -30 to 80°C
code SN177
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2061-200/C, temperature probe, cable 1 m

2061-200/C, temperature probe, cable 1 m

Temperature range: -50 to 200°C
code SN178C
Price $224
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2061-200/C, temperature probe, cable 2 m

2061-200/C, temperature probe, cable 2 m

Temperature range: -50 to 200°C
code SN179C
Price $231
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2061-200/C, temperature probe, cable 5 m

2061-200/C, temperature probe, cable 5 m

Temperature range: -50 to 200°C
code SN180C
Price $249
In stock 17 pcs
2061-200/C, temperature probe, cable 10 m

2061-200/C, temperature probe, cable 10 m

Temperature range: -50 to 200°C
code SN181C
Price $279
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PTS350A-5/C, temperature probe, cable 5 m

PTS350A-5/C, temperature probe, cable 5 m

Temperature range: -30 to 130°C
code SN182C
Price $121
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Temperature range: -30 to 130°C
code SN183C
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Pt1000TGL40/C, temperature probe, cable 1 m

Pt1000TGL40/C, temperature probe, cable 1 m

Temperature range: -30 to 80°C
code SN185C
Price $66
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Pt1000TGL40/C, temperature probe, cable 2 m

Pt1000TGL40/C, temperature probe, cable 2 m

Temperature range: -30 to 80°C
code SN186C
Price $70
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Pt1000TGL40/C, temperature probe, cable 5 m

Pt1000TGL40/C, temperature probe, cable 5 m

Temperature range: -30 to 80°C
code SN187C
Price $79
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Pt1000TGL40/C, temperature probe, cable 10 m

Pt1000TGL40/C, temperature probe, cable 10 m

Temperature range: -30 to 80°C
code SN188C
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Pt1000TR160/C, temperature probe, cable 1 m

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Temperature range: -30 to 80°C
code SN199C
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Pt1000TR160/C, temperature probe, cable 2 m

Pt1000TR160/C, temperature probe, cable 2 m

Temperature range: -30 to 80°C
code SN200C
Price $59
In stock 38 pcs
Pt1000TR160/C, temperature probe, cable 5 m

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Temperature range: -30 to 80°C
code SN201C
Price $66
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Pt1000TR160/C, temperature probe, cable 10 m

Pt1000TR160/C, temperature probe, cable 10 m

Temperature range: -30 to 80°C
code SN202C
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Pt1000TR160/C, temperature probe, cable 15 m

Pt1000TR160/C, temperature probe, cable 15 m

Temperature range: -30 to 80°C
code SN203C
Price $101
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Pt1000TR160/C, temperature probe, cable 20 m

Pt1000TR160/C, temperature probe, cable 20 m

Temperature range: -30 to 80°C
code SN204C
Price $112
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2091-250/C, Stick-in probe, cable 1 m

2091-250/C, Stick-in probe, cable 1 m

Temperature range: -50 to 250°C
code SN210C
Price $242
In stock 5 pcs
2091-250/C, Stick-in probe, cable 2 m

2091-250/C, Stick-in probe, cable 2 m

Temperature range: -50 to 250°C
code SN211C
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2091-250/C, Stick-in probe, cable 5 m

2091-250/C, Stick-in probe, cable 5 m

Temperature range: -50 to 250°C
code SN212C
Price $312
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2091-250/C, Stick-in probe, cable 10 m

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Temperature range: -50 to 250°C
code SN213C
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Temperature range: -190 to 150°C
code SN239C
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Pt1000TR125/C, temperature probe, cable 2 m

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Temperature range: -190 to 150°C
code SN240C
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code SN241C
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code SN242C
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Temperature range: -50 to 400°C
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Temperature range: -50 to 200°C
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In stock on request
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In stock on request
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code SN271C
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code SN272C
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In stock on request
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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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Contact

COMET AMERICA
11045 Alameda Ave
Inver Grove Heights, MN 55077
USA

E-mail: info@comet-america.com

Telephone customer support
Phone: (612)-845-6990

We produce

Leading manufacturer of temperature, humidity, atmospheric pressure, carbon dioxide CO2 transmitters, data loggers, monitoring systems, data acquisiton systems, thermometers, hygrometers, barometers. Production includes data acquisition systems, humidity, temperature, CO2 transmitters and portable thermometers, hygrometers, barometers, CO2 meters. Instruments are designed for accurate measurement and for monitoring environmental conditions.

All instruments come with included traceable calibration certificate with declared metrological traceability of etalons based on requirements of EN ISO/IEC 17025 standard.