manufacturer of measuring instruments
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PRELIMINARY - Low-Cost Sensor for One Digital Probe, Ethernet Interface and PoE

The PA8611 is a universal network sensor designed to connect one digital temperature probe or a combined temperature and humidity probe. The device brings significantly broader power options (5–24 V) along with native PoE support.

This model is ideal for applications with limited access or remote measuring points, where it enables precise measurement of temperature or a combination of temperature and humidity using an external probe located directly at the required measurement point.

The device supports up to four user accounts with different rights, encrypted communication, and modern communication protocols. It features an improved alarm system where two independent limits can be set for each channel.

Thanks to the Ethernet interface, PoE power, and support for industrial protocols, the PA8611 is ideal for integration into building monitoring systems, data centers, and industrial applications.

Main Benefits:

  • Support for external digital temperature and humidity probes on a cable
  • Allows probe connection up to 40 meters in length
  • Power supply 5–24 V or PoE (IEEE 802.3af)
  • 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
    PA8611
  • Warranty
    3 years

Technical data

Measured value

Temperature
Relative humidity

TEMPERATURE SENSOR

Measuring range Depending on the connected DSxx probe
Accuracy Depending on the connected DSxx probe
Resolution 0.1 °C

HUMIDITY SENSOR

Measuring range Depending on the connected DSxx probe
Accuracy Depending on the connected DSxx probe
Resolution 0.1% RV

GENERAL TECHNICAL DATA

Operating temperature range -30 to +60 °C
Measurement channels 1× external temperature probe or 1× combined T+RH probe (cable-mounted), CINCH connector
Maximum probe cable length per channel 40 meters
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), SNMP Trap, Syslog
Measurement interval 2 s
Ingress protection (IP rating) IP30
Dimensions 116 × 85 × 42 mm (without connected probe)
Weight 180 g
Warranty 3 roky

Optional accessories and download

Digital temperature probe for "p-line" WebSensor, CINCH connector, direct insertion

Digital temperature probe for "p-line" WebSensor, CINCH connector, direct insertion

code DST/C
Digital temperature probe DSTGL40/C, CINCH connector

Digital temperature probe DSTGL40/C, CINCH connector

Temperature range: -30 to 80°C
code SN189C
Digital temperature probe DSTGL40/C, CINCH connector, cable 2 meters

Digital temperature probe DSTGL40/C, CINCH connector, cable 2 meters

Temperature range: -30 to 80°C
code SN190C
Digital temperature probe DSTGL40/C, CINCH connector, cable 5 meters

Digital temperature probe DSTGL40/C, CINCH connector, cable 5 meters

Temperature range: -30 to 80°C
code SN191C
Digital temperature probe DSTGL40/C, CINCH connector, cable 10 meters

Digital temperature probe DSTGL40/C, CINCH connector, cable 10 meters

Temperature range: -30 to 80°C
code SN192C
Digital temperature probe DSTR162/C, CINCH connector

Digital temperature probe DSTR162/C, CINCH connector

Temperature range: -30 to 80°C
code SN215C
Digital temperature probe DSTR162/C, CINCH connector, cable 2 meters

Digital temperature probe DSTR162/C, CINCH connector, cable 2 meters

Temperature range: -30 to 80°C
code SN216C
Digital temperature probe DSTR162/C, CINCH connector, cable 5 meters

Digital temperature probe DSTR162/C, CINCH connector, cable 5 meters

Temperature range: -30 to 80°C
code SN217C
Digital temperature probe DSTR162/C, CINCH connector, cable 10 meters

Digital temperature probe DSTR162/C, CINCH connector, cable 10 meters

Temperature range: -30 to 80°C
code SN218C
Digital temperature probe DSTG8/C, CINCH connector

Digital temperature probe DSTG8/C, CINCH connector

Temperature range: -50 to 125°C
code SN228C
Digital temperature probe DSTG8/C, CINCH connector, cable 2 meters

Digital temperature probe DSTG8/C, CINCH connector, cable 2 meters

Temperature range: -50 to 125°C
code SN229C
Digital temperature probe DSTG8/C, CINCH connector, cable 5 meters

Digital temperature probe DSTG8/C, CINCH connector, cable 5 meters

Temperature range: -50 to 125°C
code SN230C
Digital temperature probe DSTG8/C, CINCH connector, cable 10 meters

Digital temperature probe DSTG8/C, CINCH connector, cable 10 meters

Temperature range: -50 to 125°C
code SN231C

Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector, direct insertion

Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector, direct insertion

Temperature range: 0 to 50°C
code DSRH/C
Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector

Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector

Temperature range: 0 to 50°C
code DSRH01+
Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector, cable 2 meters

Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector, cable 2 meters

Temperature range: 0 to 50°C
code DSRH02+
Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector, cable 5 meters

Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector, cable 5 meters

Temperature range: 0 to 50°C
code DSRH05+

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

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

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

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

code A1879uk
AC/DC adapter 230Vac to 5Vdc/2.1 A, US

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

code A1879us

Accredited temperature calibration

Accredited temperature calibration

code SLU001
Accredited temperature and relative humidity calibration

Accredited temperature and relative humidity calibration

code SLU003

KIT-GSM with modem

KIT-GSM with modem

code KIT-GSM-W
300Mbps Wireless N Nano Router

300Mbps Wireless N Nano Router

code TL-WIFI

Universal probe holder for easy mounting to rack 19"

Universal probe holder for easy mounting to rack 19"

code MP047
Wall holder for external probes DIGIL

Wall holder for external probes DIGIL

code SP009

PTFE sensor protection, white

PTFE sensor protection, white

code F5300

COMET Database

COMET Database

code CDB
COMET Cloud

COMET Cloud

code cloud
COMET Cloud Lite for Android & iOS

COMET Cloud Lite for Android & iOS

code cloud_app
COMET VISION - Analytical Software for Dataloggers and Multiloggers

COMET VISION - Analytical Software for Dataloggers and Multiloggers

code CV
Database Viewer for Comet Database

Database Viewer for Comet Database

code DBV

COMET Magnetic Foldable Stand

COMET Magnetic Foldable Stand

code PPO001

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
597.26 KB
download-icon Software development kit (SDK)
48.18 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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