Simple to use Temperature Websensor with 4 inputs for external sensors. Easy to use web interface plus email alerts and SNMP support.



  • Up to 4 external Temperature (and Humidity) sensors
  • Very cost effective if you need to monitor more than 1 point
  • Email alerts for all sensors
  • Connects directly to your Local Area Network
  • Large Temperature range -50 to 125°C
  • Sensor cable lengths of varying sizes
  • Traceable calibration certificate

Click to view

Parts Images Specifications Downloads

P8541 is a Web based monitor that allows you to connect up to 4 sensors and monitor them with one unit.

There are a selection of sensors with different values and cable lengths, that are suited to most applications, in our Sensors and Accessories section

Remote monitoring made simple, the Titanium P8541 is the perfect low cost solution for temperature monitoring, with some very high-end features. P8541 is very simple to setup and install with wall mount brackets built-in to the device.

If the temperature goes below or above your defined temperature range the P8541 will send an email to notify of an alarm situation. The P8541 will also save the last 600 temperature readings to it's on-board memory, which can be downloaded from its web interface.

The P8541 comes with a traceable calibration certificate, making it a must for monitoring fridges, freezers, cold rooms, warehouses, as well as server rooms.



This unit comes with a free configuration and monitoring software. We also offer an advanced monitoring software (DBS Monitor) that is installed in your PC and server and will offer graphical, as well as numerical data and its history. This software will also monitor up to 100 Titanium series of products and will display all data together. Please see Sensors and downloads section for more information.

How it works

This product needs to be connected to an Ethernet port in your building. Power the unit up, connect to an Ethernet port, make sure the sensor(s), if external, are connected and use our free software to locate the device on your web browser. The instruction set shows you how to do this.

Once located, you can use the web browser software to configure this unit with desired sensor values, name sensors and email address that needs to see the alarm.



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.


For stock availability please call +44 1189 769 014 before placing an order Distributors




Downloads & Software

Want to find out more information?

Email us at or click on the link below