Solar-Powered Cellular Dual Temperature Senso

The Solar-Powered NB-IoT / LTE-M Dual Temperature Sensor (D22-NS) is an industrial-grade, long-range cellular IoT sensor designed for applications requiring accurate dual-point temperature monitoring and multi-year autonomous operation — without LoRaWAN gateways or external power.

Equipped with two independent DS18B20 stainless-steel temperature probes, the sensor measures temperatures from –55°C to +125°C with ±0.5°C typical accuracy. This dual-probe design allows you to simultaneously track:

• Hot vs. cold pipelines

• Supply vs. return HVAC lines

• Soil temperature at two depths

• Compost internal vs external heat

• Dual-zone refrigerators/freezers

• Tank top vs bottom temperature

• Industrial process temperature pairs

The integrated solar panel recharges the internal Li-ion battery, delivering significantly extended operational life and allowing the sensor to run maintenance-free in remote or off-grid environments.

Housed in a rugged IP66 waterproof enclosure, the D22-NS is built for outdoor agricultural, environmental, and industrial conditions.

Using NB-IoT / LTE-M (Cat-M1) cellular networks, the sensor communicates reliably over long distances and through harsh environments where traditional networks fail.

It supports BLE configuration, OTA firmware updates, temperature alarms, and offline datalogging, ensuring all readings are retained and transmitted once the network reconnects.

All ProSense environmental sensors — including this model — are fully compatible with ProSight Monitoring Software, providing real-time dashboards, alerts, historical charting, reporting, and automation.

For advanced users, the device integrates into custom IoT and SCADA platforms via MQTT, HTTP, or UDP.

ProSense stocks in Australia, ensuring fast delivery and full local technical support.

Key Features

• Solar-powered for extended battery life & off-grid operation

• NB-IoT / LTE-M (Cat-M1) cellular communication

• Dual DS18B20 stainless-steel waterproof probes

• Temperature range: –55°C to +125°C

• Accuracy: ±0.5°C typical (±2°C max)

• IP66 weatherproof enclosure

• High/low temperature alarms

• BLE v5.1 mobile configuration

• Wireless OTA firmware updates

• Offline data logging for network outages

• Ultra-low-power architecture

• Compatible with ProSight Software

• Integrates with custom IoT / SCADA systems (MQTT, HTTP, UDP)

• ProSense stocks in Australia with local support