Made in the USA
No software to install. No cloud accounts to create. Wire your probe, power on, monitor.
Wire an RTD probe to the channel — PT100 3-wire is standard, with PT1000 and 2-/4-wire supported on request. A sample PT100 probe is included to get started right out of the box.
Wall-mount or magnet-mount the enclosure. Run it on a D-cell with Supercap or the external-power option. The IP65 enclosure handles harsh, washdown environments.
900MHz self-forming wireless mesh network. Up to 2-mile line-of-sight range with multi-hop routing across your facility.
Browser dashboards, threshold email alerts, and CSV export. Forward readings to AWS, Azure, or any MQTT broker. Catch temperature excursions early.
Each is a different box, with the same software and alerts on the Atrium gateway. Choose by how many points you need to watch from one spot.
Pair the sensor with an Atrium Gateway, open a browser on your network, and drag the readings you care about onto a dashboard. No code to write.
Industrial RTD temperature monitoring that runs locally. No cloud dependency. No software license.
Connect a PT100 3-wire probe — PT1000 and 2-/4-wire RTDs are supported on request. A sample PT100 probe is included for experimentation.
Resolves fine temperature changes for precise monitoring. Your measurement range and accuracy depend on the RTD probe you connect — pair it with the probe your process needs.
Long-range 900MHz wireless mesh networking reaches up to 2 miles line-of-sight, self-forming and self-healing across large facilities with 128-bit AES encryption.
A D-cell with Supercap delivers up to 5 years of runtime. An external-power option is also available for continuous-duty installations.
IP65, NEMA 4X, and UL-508 rated main enclosure (the rating covers the box only, not the probe), with wall-mount or magnet-mount options for harsh industrial environments.
Update firmware wirelessly across your fleet over the wireless mesh network. No climbing ladders, no removing sensors from service.
| Channels | 1 RTD channel |
| Sensor Type | PT100, 3-wire (standard); PT1000 and 2-/4-wire on request |
| Measurement Range | Depends on connected RTD probe |
| Included | Sample PT100 probe |
| Protocol | Long-range wireless mesh |
| Frequency Bands | 868 MHz / 900 MHz / 2.4 GHz |
| Band class | Sub-GHz (868 / 900 MHz) — sub-gigahertz radio travels farther and penetrates walls and equipment far better than higher-frequency Wi-Fi or Bluetooth |
| Range | Up to 2 miles line-of-sight (~1000 ft dense urban) |
| Encryption | 128-bit AES |
| Cloud Platforms | AWS, Azure, MQTT, Node-RED |
| Battery | D-cell with Supercap |
| Battery Life | Up to 5 years |
| Power Options | Battery only, or external power connector + battery |
| Enclosure | IP65 (main enclosure only); NEMA 1/2/4/4X/12/13; UL-508 |
| Component Temp | -40°C to 85°C |
| Mounting | Wall-mount or magnet-mount |
| Dimensions | 3.54" W × 4.52" L × 2.16" H |
| Compliance | CE/RED, RoHS (900 MHz module) |
| Wireless (regional) | FCC, IC, RCM, Anatel and others by band |
| Battery-powered model | PR55-44 |
| External-power model | PR55-44_PWR |
Anywhere a temperature needs to be watched continuously and wirelessly, from production lines and food plants to utility sites and remote farms.
Process & Tank TemperatureMonitor liquid and process temperatures in tanks, vessels and pipelines, from chemical plants to oil and gas sites, with a precision PT100 probe.
Cold Chain & RefrigerationTrack freezer, cooler, and cold-storage temperatures and prove the cold chain held with a continuous wireless log.
HVAC & Building SystemsMonitor supply/return air and equipment temperatures across large buildings on a single wireless mesh.
Motor & Bearing TemperatureWatch motor, bearing, and drive temperatures to catch overheating before it becomes downtime.
Food & Beverage ProcessingTemperature monitoring for cooking, pasteurization, and storage in sanitary, washdown environments.
Environmental MonitoringLong-term ambient and outdoor temperature logging at remote farms, greenhouses and field sites on multi-year battery life.
Pharmaceutical & Lab StorageKeep a continuous temperature record for drug storage, sample fridges and controlled rooms, ready when an auditor asks.
Power & Utility EquipmentTrack transformer, generator and equipment-room temperatures at power and utility sites that are miles apart.
Water & Wastewater SitesWatch process and equipment temperatures across distributed treatment plants and lift stations without running wire.
The math is simple. One purchase versus compounding monthly fees.
The probe watches the product. These sensors watch the room and the equipment around it, on the same Atrium gateway.
Temperature & Humidity SensorMount it in the room around the cooler or line. Air temperature and humidity show when storage conditions start to slip.
Contact Closure SensorWire it to the cooler door switch. You see when the door opened right next to the temperature it caused.
Water Detect Puck SensorSet it in the condensate pan or by the floor drain. A wet floor alerts the same way a warm cooler does.
Answers to the most common questions about wireless RTD temperature monitoring.
The Industrial IoT Wireless RTD Temperature Sensor from NCD is a battery-powered industrial sensor that measures temperature on a single RTD channel and transmits readings wirelessly up to 2 miles. It supports PT100 and PT1000 probes in 2-, 3-, and 4-wire configurations, runs for years on a D-cell with Supercap, and carries no monthly fees or subscriptions.
Accuracy depends on the RTD probe you connect. The transmitter itself resolves fine temperature changes, and the included PT100 is a sample for experimentation only. For production accuracy, pair the Industrial IoT Wireless RTD Temperature Sensor with an RTD probe rated for your process.
It works with PT100 RTD probes in the standard 3-wire configuration, and supports PT1000 and 2-/4-wire RTDs on request. The Industrial IoT Wireless RTD Temperature Sensor ships with a sample PT100 probe for experimentation, so you can start taking readings right out of the box.
The measurable range depends entirely on the RTD probe you connect — there is no fixed range built into the transmitter. The included PT100 is a sample for experimentation; for production, connect an RTD probe rated for your process temperatures and the Industrial IoT Wireless RTD Temperature Sensor will report across that probe’s range.
The sensor reaches up to 2 miles line-of-sight using 900MHz long-range wireless mesh networking (about 1000 ft in dense urban environments). Because the Industrial IoT Wireless RTD Temperature Sensor forms a self-healing mesh, a single Atrium gateway can collect readings from many sensors across large or multi-building facilities.
Battery life depends on how often it transmits. The Industrial IoT Wireless RTD Temperature Sensor runs up to 5 years on a D-cell with Supercap. An external-power option is also available for continuous-duty installations.
No. The Industrial IoT Wireless RTD Temperature Sensor has no monthly fees and no proprietary lock-in. You own your data and can keep it on your own network or forward it to AWS, Azure, or any MQTT broker through the Atrium gateway, there are no recurring software costs.
Yes. Readings from the Industrial IoT Wireless RTD Temperature Sensor flow through the Atrium gateway, which supports AWS, Azure, MQTT, Modbus, Node-RED, and a REST API. Data is encrypted with 128-bit AES in transit, and you can route it into existing SCADA, CMMS, or analytics platforms without vendor lock-in.
Yes. The Industrial IoT Wireless RTD Temperature Sensor uses an IP65 main enclosure (rated on the box only, not the probe) also rated to NEMA 1/2/4/4X/12/13 and UL-508, with wall-mount or magnet-mount options. It is built to handle dust, washdown, and harsh plant-floor conditions.
The Industrial IoT Wireless RTD Temperature Sensor is made in the USA and is RoHS compliant. Its 900MHz wireless module carries CE/RED certification, and additional regional certifications (FCC, IC, RCM, Anatel, and more) are available depending on the frequency band, so it can be deployed across many regions.
We publish our prices. There is no quote form, no login and no sales call between you and the number. The Ordering section of the spec table names each version we sell and its part number, so you can match the one you want before you order.
No. The PT100 that ships with the sensor is a sample for bench testing and experimentation, not a probe meant for a production process. The measurement range you get is set by whichever RTD probe you connect, so tell us the process, the temperature and the fitting, and we will confirm the right probe before you order.
Our engineers answer in public on the community forum, and the thread stays up for the next person with the same question.
Ask on the NCD Community ForumOne purchase. Full ownership. Industrial-grade RTD temperature monitoring that pays for itself.
Configure Your System
