Comet P8510

Websensor with Built-In Temperature sensor LAN interface

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Key Features
  • Web based Temperature Monitor
  • Integrated Tmperature sensor
  • -30°C to 80°C
  • Temperature accuracy ±0.8°C
  • Comes with Traceable Calibration Certificate

Simple to install and use websensor with Built-In Temperature Sensor, wall mountable plus email alerts and built in web server.

A low cost Web based Temperature monitor with email alerts, the P8510 comes with an integrated temperature sensor, measuring from -30°C to 80°C.


P8510 is wall mountable and requires just a Ethernet and power connection. Comes with free software for simple monitoring and datalogging. If you are using a number of P8510 units in your system, we recommend the use of DBS software monitor. This software can monitor and control up to 100 P850 units in yiour system.

P8510 comes with a traceable calibration certificate as standard and can log up to 600 values in its internal memory, so can act as a small datalogger. The P8510 is used in Restaurants, Hospital Rooms, Data Centres, Museums, Galleries etc.

  • Supported physical units: degrees Celsius, degrees Fahrenheit
  • Supported temperature sensors: Digital temperature sensor Dallas DS18B20
  • Measuring range: -30 to +80°C
  • Accuracy: ±0.8°C - ±2°C below -10°C
  • Resolution: 0.1°C
  • Sampling interval: 2 s
  • Memory capacity for temperature history: 600 values, export to CSV file enabled
  • Interval for temperature history record: adjustable from 10 s to 18 h
  • Temperature operating range: -30 to +80°C
  • Protection of the case: IP30
  • LAN connection: RJ-45 connector
  • Dimensions of case: 88 x 126 x 39,5 mm (W x H x D)
  • Weight: 240 g

Modes of Communication

Modbus TCP: Modbus TCP protocol enables to read measured values, set alarm limits, adjust the probe.
Telnet: -Port 9999 enables to set alarm limits (lower, upper limits, hysteresis for measured values and time delay), e-mail addresses, SNMP addresses, probe description, refresh of www pages (10s to 65535s), set storing interval to history (10s to 65535s), enable each communication channel. Capacity of the history memory is 100 sets of temperature, humidity, pressure + computed values. Password protection of this port is enabled. Automatic IP address assignment from DHCP server is also enabled.
WWW pages: User selectable design of www pages enabling to display curve of measurement history. User can design the look of www pages and temperature, humidity, pressure + computed values history.
SNMP: It is possible to read actual values and alarm limits. In case of alarm creation warning message (trap) is sent to addresses defined by the user (maximum three addresses).
SOAP: Online transmitter enables to send actual measured data in the format of SOAP message to selected web server in preset interval 10-65535 s.

Online transmitter enables to monitor measured values. In case of exceeding of adjusted limits warning message can be sent to specified addresses. There are the following options of alarm indication:

Alarm Indication Options

E-mail: In case of alarm creation warning e-mail message is sent to addresses defined by the user (maximum three addresses) or via e-mail to SMS message. Basic SMTP authentication is supported.
SNMP: In case of exceeding of adjusted temperature, humidity, pressure + computed value limits alarm is activated and warning trap is sent to user specified IP addresses (maximum 3 addresses).
WWW pages: In case of exceeding of adjusted temperature, humidity, pressure + computed value limits active alarm is displayed on www page.
syslog: Online transmitter enables to send text messages to selected syslog server after different events appear. E.g. after transmitter restart, alarm activation, communication error with SNTP, after firmware change, after alarm termination, after communication error with SOAP server.

Synchronizing of time and record to www table and measured values history is enabled by SNTP via Internet

Dimensions of the case (W x H x D): 88 x 73 x 39,5 mm

  • P8510 Ethernet temperature sensor
    P8510 Ethernet temperature sensor
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    P8510 Graph
  • P8510 setup screen
    P8510 setup screen
  • P8510 Spreashseet of data
    P8510 Spreashseet of data
  • P8510 web sensor
    P8510 web sensor
  • P8510 web server page
    P8510 web server page
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