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manufacturer of measuring instruments
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Web Sensor with PoE - two channels with binary inputs

code: P8652

P-line Web Sensor with PoE (Power over Ethernet feature) for measuring temperature, relative humidity and three binary inputs for two-states signals. Remote alarm.

The device is equipped with two connectors for connection of the temperature and humidity external probes and three binary inputs for two-states signals. The dry contact or two-state voltage signal can be connect to the binary input.


Included in delivery:

  • P8652 Web Sensor
  • Quick start manual
  • Traceable calibration certificate
  • Technical support at discussion forum

Power over EthernetSupported optional probes:



Technical data

Measured value Temperature
Relative humidity
Two-state signal
Measuring range -55 to +105 °C
Accuracy according to the connected probe DSxx
Resolution 0.1 °C
Measuring range according to the connected probe DSxx
Accuracy according to the connected probe DSxx
Resolution 0.1% RH
Parameters of the voltage contact Voltage input level for „L“:< 1,0 V;
Voltage input level for „H“:> 2,5 V;
Internal resistivity of the voltage source < 2kOhm
Input voltage range 0 to +30 V
Parameters of the voltage-free contact Voltage on the unclosed contact 3,3 V
Current through closed contact 0,1 mA
Maximum resistivity of the contact < 5kOhm
Operating temperature -30 to +80 °C
Channels 1x external temperature probe nebo 1x connectable temperature+humidity probe
Output Ethernet
Measuring interval 2 s
Available temperature units degrees Celsius, degrees Fahrenheit
Communication protocol WWW, ModbusTCP, SNMPv1, SOAP, XML
Alarm protocols E-mail, SNMP Trap, Syslog
Power Power over Ethernet according to IEEE 802.3af or 5Vdc
Protection class IP30
Dimensions 88 x 74 x 39,5 mm
Weight approx. 125 g
Warranty 3 years



Aplikace - Sklady

Production facilities and warehouses - Monitoring of storage conditions and production processes in the temperature range -200 ° C to + 600 ° C. Sending data to COMET Database or SCADA third-party systems.

Aplikace - Serverovny a datová centra

Data centers, server rooms - Temperature and humidity monitoring, data center monitoring, RACK stands, including flood status reports, opening / closing of doors (windows), motion, smoke. SNMP monitoring, remote alarms by email and Syslog.

Aplikace - Zdravotnictví a laboratoře

Healtcare and laboratories - Monitoring of storage areas at temperatures up to -200 °C.

Aplikace - Průmysl

Industry and production - monitoring temperature and humidity in food, pharmaceutical, aerospace etc.

Aplikace - Sklady

Food industry - Monitoring of critical processes according to the HACCP standard with the possibility of prompt notification of unforeseen events that could lead to the degradation of the goods.


Features description:

* the features may vary depending on the device type
● accurate measurement of Temperature, Relative humidity, Dew point, Atmospheric pressure, CO2, Two-state events
● communication protocols SNMP, Modbus TCP, SOAP, XML
● webserver to display current and recorded values
● alarm indication via email
● selected models with PoE
● data analysis in COMET Database software
Záruka 3 roky Kalibrační listComet Database Teplotní čidlo Teplotní čidlo Proudové vstupy Teplotní čidlo Ethernetové rozhraní Power over Ethernet - PoE WWW server
WWW server Historie uložených hodnot Historické grafy E-mail Export historických dat do CSV Export historických dat do CSV Aktuální hodnoty pomocí XML SNMP protokol SNMP Trap SOAP Protokol
Syslog protokol SNTP protokol - časová synchronizace Paměť MIN/MAX hodnot

Optional accessories

Online demo