Piconode Data Logger

The Worldsensing Piconode is a compact 3-channel wireless data logger designed for cost-effective data collection from low-power sensors such as rain gauges, load cells, NTC thermistors, and displacement sensors with potentiometer output. Featuring a configurable analog channel, a thermistor channel, and a pulse counter channel, the Piconode provides a practical and efficient solution for structural and environmental monitoring.
With a battery life of up to 25 years and a communication range of up to 15 km, it is ideal for unattended monitoring over extended periods.

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Datasheet

Product information:

Key Features

Can power sensors at 5 V DC up to 50 mA
Several analog input types admitted
Single-ended Voltage, potentiometers and full wheatstone bridge
Internal temperature collected and transmitted with each reading (accuracy: 2°C)
Use the Mobile App to perform field sample collection and signal coverage testing
Wiring recommendations to assist onsite sensor installation using the Worldsensing Mobile App

Applications

Monitoring precipitation, air temperature and other weather parameters
Monitoring load in rock bolts, cable bolts and ground anchors
Monitoring Movements across surface cracks
Pipe and closed conduits flow measurement

Technical Specifications

Device type: Compact analog wireless data logger
Data transmission: LoRa radio communications (ISM sub GHz)
Channels: 3 channels: 1 configurable, 1 thermistor and 1 pulse counter channel
Operating temperature: -40º C to 80º C
Weather protection: IP68
System configuration: Locally via Worldsensing App or remotely using CMT Edge on sigle-net deployments and CMT Cloud on multi-net deployments

Channel 1: Configurable
Input types: Voltage, Potentiometer, Full wheatstone bridge
Voltage excitation: 0-5 VDC up to 50 mA
Measurement range: ± 7.8 mV/V for FWB
0-5 VDC (0-1 V/V) for potentiometer
0-5 VDC for single-ended voltage
Accuracy: 0.14%FS for FWB
0.1 % FS for potentiometer
0.6 %FS for single-ended voltage

Channel 2: Thermistor
Measuring range: 0 to 2 MΩ
Accuracy (at 25º C): 0.04 °C (0.03 % FS) for 3KΩ
0.9 °C (0.7 % FS) for 50K Ω

Channel 3: Pulse counter
Pulse count: 0 to 4 294 967 295 pulses
Pulse rate: 0 to 50 Hz
Accuracy: ±1 Pulse