At Tendo Systems, we want to supply the best, British-made, monitoring system available. Over the years we have researched the Environmental Monitoring industry and concluded that the following provide the functionality and reliability your business needs, without breaking the bank.

We are official distributors for Northern Ireland and would be delighted to supply and install either of these systems for your business.

Tek-Troniks D3

The D3 is the latest in a series of Wireless Monitoring Systems. The reports and audible/visual alarm functions help you adhere to HACCP, BRC and MHRA requirements. Read More.

Hanwell Icespy Cloud

IceSpy is well-known across many industries in Northern Ireland. This Cloud-based system features remote access and is ideal for Multi-Site organisations. Read More.

Self-Install WiFi Loggers

Our WiFi enabled Data Loggers are ideal for self-installation. Connecting to a standard wireless network, data is uploaded periodically to the EasyLog Cloud. Read More.

Wireless Monitoring FAQ

How are the wireless temperature sensors powered?

Our wireless temperature sensors / transmitters are powered by an AA size Lithium battery. The batteries will last up to 5 years and they are easily replaced.

As a transmitter’s battery level reduces, you will see visual indication on your computer / smartphone screen.  When the level drops to a critical level, you will receive an email alert.

If you require annual calibration / maintenance services, we will check the level of charge in your batteries and replace them as part of the service.

How much does a wireless temperature monitoring system cost?

There are many variables. The answer depends on the quantity and type of sensors you need. It also depends on the size of your facility and if Repeaters (signal boosters) are required.

We can talk you through this via phone or email. Or, you can complete this Estimate Request form and we’ll get back to you ASAP.

What is the maximum range of a temperature sensor/transmitter?

Our wireless sensors can transmit up to 1km outdoors, with no obstacles. When inside buildings, the range can be around 300 metres. Ultimately, the range of a temperature sensor depends on walls and other obstacles in the building.

We can install Repeater units to increase the signal range. These Repeaters can be daisy-chained and so the transmission range of a wireless sensor can be increased as required.

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