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 30 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
-
codePA8611
-
Warranty3 years
-
In stock3 pcs
- 213.00 EUR
Technical data
Measured value
TEMPERATURE SENSOR
HUMIDITY SENSOR
GENERAL TECHNICAL DATA
Cost-effective Ethernet Sensors without Display
The PAx6xx series is designed as a low-cost solution for applications where a local display or signaling is not required.
Ideal solution for:
- server rooms
- warehouses
- IT racks
- OEM projects
- centrally managed systems
Why choose PAx6xx?
Cost-effective solution
Optimized for projects where the priority is:
- reliability
- network communication
- remote monitoring
- low acquisition costs
Full-featured network equipment
The same platform as TAx6xx means:
- HTTPS
- SNMP v1/v2c/v3
- Modbus TCP
- HTTP GET (JSON / XML)
- HTTP POST (JSON)
- SMTP (TLS)
- IPv4 + IPv6
- COMET Cloud
- Syslog
- Firmware update via web
✔ Modern security
- Custom certificate upload
- 4 user accounts
- Encrypted communication
- RTC with battery backup
✔ Flexible probe connection
- Digital temperature probes (DST)
- Digital T+RH probes (DSRH)
- Independent bus for multi-input models
- Up to 40 m cable length for each probe
Technical parameters (common)
- Power supply 5–24 V (PA8652: 15–24 V)
- PoE IEEE 802.3af
- Backed-up memory
- Modern compact design
- Removable bracket
- Operating range −30 to +60 °C
Typical applications
Server rooms
- Discrete installation without a display.
Warehouses
- Monitoring of multiple points using PA8641.
Technical rooms
- Temperature + flooding + door status (PA8652).
Buildings with central monitoring
- Integration into BMS via Modbus TCP or SNMP.
Optional accessories and download
Digital temperature probe for "p-line" WebSensor, CINCH connector, direct insertion
Digital temperature probe DSTGL40/C, CINCH connector
Digital temperature probe DSTGL40/C, CINCH connector, cable 2 meters
Digital temperature probe DSTGL40/C, CINCH connector, cable 5 meters
Digital temperature probe DSTGL40/C, CINCH connector, cable 10 meters
Digital temperature probe DSTR162/C, CINCH connector
Digital temperature probe DSTR162/C, CINCH connector, cable 2 meters
Digital temperature probe DSTR162/C, CINCH connector, cable 5 meters
Digital temperature probe DSTR162/C, CINCH connector, cable 10 meters
Digital temperature probe DSTG8/C, CINCH connector
Digital temperature probe DSTG8/C, CINCH connector, cable 2 meters
Digital temperature probe DSTG8/C, CINCH connector, cable 5 meters
Digital temperature probe DSTG8/C, CINCH connector, cable 10 meters
Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector, direct insertion
Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector
Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector, cable 2 meters
Digital temperature/humidity probe for "p-line" WebSensor, CINCH connector, cable 5 meters
AC/DC adapter 230Vac to 5Vdc/2.1 A, EU
AC/DC adapter 230Vac to 5Vdc/2.1 A, UK
AC/DC adapter 230Vac to 5Vdc/2.1 A, US
Accredited temperature calibration
Accredited temperature and relative humidity calibration
KIT-GSM with modem
300Mbps Wireless N Nano Router
Universal probe holder for easy mounting to rack 19"
Wall holder for external probes DIGIL
Magnetic holder for Web Sensors PAxxxx and TAxxxx
PTFE sensor protection, white
COMET Database
COMET Cloud
COMET Cloud Lite for Android & iOS
COMET VISION - Analytical Software for Dataloggers and Multiloggers
Database Viewer for Comet Database
COMET Magnetic Foldable Stand
Software
Comet Database One Click Installer (21.1-V)
Database Viewer 3.20.0.0 dbapi 21.1
Conversions - application for recalculation of values
COMET Cloud Lite - Android (Google Play)
COMET Cloud Lite - iOS (App Store)
Others
Terms and Conditions COMET System s.r.o.
Manuals
Quick Start Manual
Declaration of Conformity
Software development kit (SDK) / Popis komunikačních protokolů (SDK)
Software development kit (SDK)
Catalogs
Catalogue Sheets - COMET Premium WebSensors 2.0
Related products
COMET Cloud
COMET Database
Compact Cost-Effective Thermometer with Ethernet Interface and PoE
Low-Cost Sensor for Up to Four Digital Probes, Ethernet Output and PoE
Compact Temperature and Humidity Sensor, Ethernet Output and PoE
Wireless IoT thermometer for external probe, Sigfox
IoT Wireless Temperature Datalogger for 4 external probes, with built-in 4G modem
Web Sensor with PoE - remote thermometer
Web Sensor with PoE - four channels remote thermometer hygrometer