| Equipment | |
|---|---|
| sensors | surface temperature |
| Communication | |
| connectivity | LoRaWAN |
| frequency | EU868 |
| activation | OTAA |
| Power supply | |
| power supply | battery, not included, replaceable, power supply |
| battery details | ER14505 |
| number of batteries | 2 |
| General | |
| variants | kabelgebunden or nur Batterie |
| Certifications | |
| enclosure protection class | IP65 |
| Others | |
| Brand | thermokon |
The sensor is specifically designed for measuring temperature on pipes and curved surfaces using a spring-loaded brass contact sensor, making it ideal for integration into LoRaWAN wireless sensor networks.
The VFG54+ LRW is a wired model that requires a 15..24 V power supply and offers analog output signals, whereas the VFG54+ BAT LRW is a battery-powered version designed for standalone wireless LoRaWAN operation using two 3.6 V AA lithium batteries.
Both models feature a sensor pocket designed for temperatures between -35 °C and +120 °C. The operating temperature for the enclosure electronics is -35 °C to +70 °C for the wired VFG54+ LRW, and -20 °C to +70 °C for the battery-powered VFG54+ BAT LRW. The measuring range for the battery-powered variant is -20 °C to +70 °C.
Yes, the device features an IP65-rated enclosure made of UV-resistant polycarbonate, making it suitable for environments with up to 85% relative humidity and short-term condensation.
The battery-operated variant typically offers a battery life of approximately 5 years, depending on the configured measurement intervals and ambient conditions.
Configuration for the battery-powered VFG54+ BAT LRW is performed through the Thermokon LRWapp, uConfig software, or LoRaWAN downlink commands via Bluetooth or micro-USB. The wired VFG54+ LRW model uses the Thermokon USEapp, LoRaWAN downlink commands, or physical jumpers; Bluetooth configuration on the wired model requires an optional Thermokon Bluetooth dongle.