Below are some of the most commonly asked questions and their answers. If you cannot find the answer you are looking for, please get in touch.

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.

Calibration FAQ

How often do we need to calibrate temperature sensors?

Manufacturers of sensors will have a recommended re-calibration period. For the temperature and humidity probes we supply, we recommend that you calibrate temperature sensors annually.

However, depending on your industry, more frequent calibration may be necessary. It is advised to consult your QA Auditor or Technical Management department.

  • If the probe is damaged, dropped or is generally mishandled then a calibration to check performance should be completed.
  • Periodic checking of the probe against a known source to check performance should also be completed.
  • If you have any concerns over performance of the probe then calibration should be carried out.
What is an acceptable deviation?

The acceptable deviation of a temperature or humidity probe will depend on your specific application requirement. Legislation varies between industries/sectors. You should contact your regulatory body e.g. MHRA for Pharma, Food Standards Agency for Food Production. Often your customers, especially the larger Retail chains can have their own calibration regulations.

We are commonly asked by customers for temperature probes that are accurate to within ±0.5°C. This implies that if you have an area that is at 5°C then your happy with a temperature probe reading of between 4.5°C and 5.5°C. If you have specific calibration requirements, e.g. calibration to several temperatures, we can adjust our standard procedures to meet your needs.

What is temperature sensor calibration?

Temperature sensor calibration provides confidence that the temperature displayed on devices is reflective of actual temperatures in the areas being monitored. It is an essential process for environments storing temperature sensitive goods. Calibration has always been common place in medical facilities and pharmaceutical storage but has become a requirement in a variety of applications across food production, storage and retail industries.

Ask your question here…