Temperature Transmitter Sigfox – External Contact Probe
This Enless Wireless IP65 transmitter with an external temperature contact probe allows you to measure temperatures (°C data) in a remote manner, on contact with surfaces.
The robustness of our transmitter – IP 65 housing – and its high environmental tolerance (probe temperature range -30°C / +100°C) allow it to withstand any type of “outdoor” environment, sometimes under extreme conditions.
This temperature transmitter is suitable for many applications including:
- Monitoring of temperatures on inlet/outlet fluid circuits of all types and, in particular, continuous observation of sanitary hot water networks for preventing the health risk of legionella. Maintenance and operation of heat pumps.
- Temperature monitoring in cold rooms, cooling towers, refrigerated outdoor containers (chemical, agri-food industries, etc.)
- Cold chain management applied to drug storage and temperature control in hospital environments, housing structures for ageing and/or vulnerable populations.
- Supervision of HVAC (heating, ventilation, air conditioning).
High-precision °C data is retrieved using the contact probe and transmitted to the Sigfox Cloud at a flexible frequency, configured in advance. Where high and low-temperature thresholds are exceeded, these are escalated and allow for alarm triggering.
This product incorporates a high-performance D-type battery and gives the Enless transmitter a very high autonomy of up to 15 years.
If you need help selecting your wireless sensors please read our 5 min guide.
Battery Life

Technical Specifications
Dimensions | L 118 x H 79 x W 43 mm |
Enclosure and IP rating | ABS IP 65 |
Power supply | Replaceable D 3.6 V Lithium battery - Low battery alert |
Battery autonomy / Periodicity | 5 years battery life with 20mn periodicity / Configurable periodicity |
Configuration / Installation | Radio via downlink - from Sigfox Backend or APIs |
Type of sensor | Contact probe 2 wires PT 100 – cable lenght : 1,5m |
Contact probe working temperature | - 30°C / +100°C |
Sensor accuracy | +/- 0,5°C |
Sensor resolution | 0,01°C |
LEDs | 3 LEDs |
Advanced features | Alarms and remote configuration |
Certification | CE |
All Enless Wireless Sigfox products incorporate an advanced configuration mode that allows you to optimise their battery performance and facilitate their use :
> You can set high and low alarm thresholds for your transmitter and have your transmitter wake up frequently and take a measurement. If the threshold is exceeded, your transmitter can send an alert frame immediately without waiting for its next shipment.
> You can remotely change your transmitter configuration from the Sigfox Backend without manual intervention or the need to restart the transmitter to take its new configuration.
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