The Wireless Temperature Sensor (3rd Gen) periodically measures Temperature (°C/°F) and wirelessly transmits the result to nearby Cloud Connectors (gateways) at a predetermined interval via the SecureDataShot™ protocol. Cloud Connectors relay sensor data to the cloud via cellular or ethernet connectivity. From the cloud, the data can be integrated into other services using REST APIs and webhooks or viewed directly in DT Studio (web application).
The Wireless Temperature Sensor uses Heartbeat Interval (HBI) to transmit a message notifying the system that it is present and operational, which can be set to 5 min, 15 min, 30 min, 45 min, or 60 min.
Sensor events during default operation with a 5-minute measurement interval and 15-minute heartbeat
EU and US variants
This sensor is available in two variants, one for the EU and one for the US, due to different certifications, compliances, and wireless communication.
Features
- Up to 15-year battery life
- Wide temperature range -40°C to +85°
- User configurable sampling interval
Application
- HVAC Monitoring
- Environmental Monitoring
- Cold Storage Monitoring
Specifications
| Operating conditions | |
| Temperature range | -40 to 85 °C / -40 to 185 °F |
| Recommended temperature range | -25 to 50 °C / -13 to 122 °F, non condensing |
| Humidity at 25 °C / 77 °F | 0 to 100% relative humidity |
| Wireless communication | |
| EU | 868 MHz ISM band, SecureDataShot™ |
| US | 915 MHz ISM band, SecureDataShot™ |
| Certifications and compliance | |
| EU | CE, UKCA, WEEE, Batteries directive |
| US | Certified to FCC and ISED regulations FCC ID: 2ATFX-100541 IC: 25087-100541 |
| Other | |
| Recommended storage conditions | Cool and dry, near normal room temperature |
| Construction | Robust design, sealed, IP68 |
| Size and weight | 19 x 19 x 3.5 mm, 3.0 g |
| Lifetime | Up to 15 years in the default configuration and standard environment |
| Wireless Range | |
| Indoor | 25 m | 82 ft 40 m | 131 ft w/Cloud Connector (2nd Gen) |
| Indoor with Extender | 100 m | 328 ft 150 m | 492 ft w/Cloud Connector (2nd Gen) |
| Product numbers and datasheets | |
| 102739 EU / 102740 US | Temperature Sensor (3rd Gen) EU/US Datasheet Wireless Temperature Sensor (3rd Gen) EU/US |
See the datasheet for detailed specifications.