The Neuron Temperature IP21 is a small wireless sensor with long battery life that measures ambient air temperature every three seconds. It transmits measurements wirelessly through a Neuron gateway to the Neuron app. Typical applications are monitoring of temperature in all types of rooms and buildings, refrigerators, freezers and fuse boxes. The sensor is attached with double-sided tape or cable tie.
General Description
Temperature is a crucial parameter in many different applications, from HVAC systems and industrial process maintenance to freezers. Accurate measurement of ambient temperature is therefore essential for maintaining optimal conditions and ensuring proper functioning of these systems.

The Neuron Temperature IP21 sensor is a high- precision device designed specifically for measuring the temperature of air. With a wide temperature range of -40°C to 85°C and an accuracy of ±0.5°C, this sensor is ideal for a variety of applications where temperature needs to be monitored and controlled with a high degree of accuracy.

Compact in size at just 37mm x 25mm x 14mm, the sensor is easy to integrate into any system. It operates on a non-replaceable integrated battery allowing it to operate up to 10 years.

Whether you need to monitor the temperature in a warehouse, control the temperature in a refrigerator, or monitor HVAC-systems, the Neuron Temperature IP21 sensor is the perfect choice for reliable and accurate temperature measurement.



Principle of Operation
In the Neuron Temperature IP21 sensor, an NTC thermistor is used as the sensing element. The thermistor is placed in direct contact with the air, allowing it to accurately measure the ambient temperature.

The thermistor’s resistance is measured by passing a small current through it and measuring the voltage across it. This voltage is then used to calculate the thermistor’s resistance, and from that the ambient temperature can be inferred.

The Temperature IP21 sensor has high accuracy, wide temperature range, robust IP21 enclosure, and fast response time.

Every three second the sensor measures the ambient temperature and if the temperature has changed more than 2 degrees since the last transmission, the sensor reports immediately. Otherwise, it reports every 2 minutes.



Features
Integrated long life battery – up to 10 years lifetime
Continuous measurement and instant alarm
Adjustment of parameters such as measurement frequency on request
Define your own alarm levels in the Neuron app
Receive alerts as push notifications, emails or SMS
Easily connect the sensor to the system with the QR-code on the sensor. Ensures immediate and accurate registration in the app on your phone/PC/tablet
The sensor transmits data to your nearby Neuron Gateway which then again communicates with the Neuron Cloud


Typical Applications
HVAC
Transformer stations
Industry
Storage
Greenhouse


Essentials
Measuring Range:
-40 – 85 °C

Measuring Frequency:
Every 3 sec

Report Frequency:
Every 2 min. Or immediately after measurement if trigger for critical data transmission is reached

Expected Operating Time*:
Up to 10 years

*Depends on measurement frequency, amount of critical data transmissions and ambient temperature