Temperature Probe Sensor


The Urban.io Temperature Probe Sensor allows you to accurately monitor the temperature of a surface or inside an air vent, cool room, freezer or other enclosed space. The probe is a 10,000 CTN thermistor (Negative Temperature Sensor) at the end of a 900 mm cable.


This product is designed for usage with an Urban.io IoT Gateway. In ideal conditions with correct orientation of sensors and gateway antennas the following ranges can be achieved.

  • Up to 5km line-of-sight where there are no obstructions between the gateway and the sensor and they are placed on the same horizontal plane.
  • 500m non-line-of-sight in an enclosed space where there are one or more obstructions (objects, walls, buildings) between the gateway and the sensor and it is placed on the same horizontal plane.

This product is designed for application in normal indoor and certain outdoor environments. The gateway housing is IP65 rated and as such is designed to be water and dust resistant as well as generally resistant to direct sunlight. However the 240v Power Adapter is not rated for outdoor usage.

Urban.io proactively supports the interfacing of IoT sensor data with all industry leading Asset Management, Field Force and Work Management, Data Analytics and Machine Learning Platforms. We provide the following Public APIs as well as pre-built API Adapters for the following Enterprise IoT Systems :

  • API publics : MQTT, Rest Web Services
  • API adaptés : AWS IoT Core, IBM Watson IoT, Azure IoT Hu​b
Respond to emergencies more quickly
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Cloud reporting platform





IoT API





Email/SMS alerts



 Temperature Probe Sensor features :


General Sensor Features
Gateway to sensor network range 
500m indoor
5km outdoor
Operating Temperature 
-40°C to 85°C 
Power Supply 
3.0 V CR2477 coin cell battery (replaceable) 
Battery life 
2 years under normal operation 
Reading frequency 
1 Sample each 10 minute interval
Data transmission frequency 
10 minute interval
Primary Sensing Element
A precise 10k NTC thermistor at the end of a 900mm cable.

Secondary Sensing Elements
Fault detection
(loss of sensing element)
IoT network connectivity
(Signal to Noise levels “SNR”)
IoT device battery Level
(% of remaining battery level)
  Technical specifications : 
Maximum resolution over measured electrical range
Plage de mesure

Calibration / Drift

Accuracy​
Temperature range (limited by battery)
Enclosure rating

4 095 detectable points​

-40°C to 125°C

Aucun
+/- 0,1°C (0° and 60°C)
outside core : +/- 2,3°C  (0° and 60°C)
Extremes  : +/- 6°C (0° and 60°C)
-20°C to 85°C

IP67

  Power specifications : 
Supply Voltage
Current consumption — sleep mode
Current consumption — sensor active sampling mode
Current consumption — radio RX mode
Current consumption — radio TX mode (max)

2,0 - 3,4 VDC

9 uA

12 uA (avg)

25 mA for 0,5 seconds

100 mA for 0,5 seconds

915-925 MHz

Suitable for South East Asia, Australia, North/South America. ​

863-870 MHz

Suitable for Africa, Middle East, Europe. ​

779-787 MHz

Suitable for China.

  Mounting and dimensions :










Length : 73 mm (with antenna)

Height : 29 mm

Width : 44 mm

Weight : 85 g 

Example Applications


Refrigerated food / vaccine safety monitoring
Electrical transformer monitoring
Legionella growth condition audits in plumbing / pipework

The company Urban IO


Urban IO provides a complete turnkey, industrial-grade system specifically designed for monitoring assets, systems, and spaces.

Our solution is the simplest and most cost-effective way to connect your assets to your management systems.

Urban IO presentation

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