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Enabling better global research outcomes in soil, plant & environmental monitoring.


The SNiP-LUX is a 'Sensor Node Integrated Package' for LoRaWAN communication of real-time measurements of illuminance, for continuous environmental monitoring (including plant light relations).


The base SNiP-LUX integrates 1x AD-NODE and 1x SE-100 Photometric Sensor to a site’s unique network, communication and power requirements.

The SE-100 Photometric Sensor is a self-powered lux sensor that measures Illuminance in the range of 0-200 Klux over a 0 to 200 mV range. Typical applications of photometric sensors include measuring light levels for human vision in offices, sports arenas, hospitals, museums and more.


See Further Specifications on the AD-NODE
See Further Specifications on the SE-100 Photometric Sensor

Further parameters can be added to the SNiP without requiring loggers to match each distinct sensor, substantially reducing the cost of getting a fuller picture on the application.

Spectral Response

The mean relative spectral response of four SE-100 photometric radiometers (green) compared to the CIE-1931 curve (black). The spectral response can be seen in the graph below.

AD-NODE: For High Resolution Analogue & Digital Sensors

The AD-NODE is designed for those requiring precision in their analogue and digital measurements. With a 24-bit ADC, the AD-NODE supports two RTDs, a 0–10V with compressing range and a 4–20mA input. Each of the four dry-contact digital inputs is capable of simultaneously sampling at 1 kHz, with periodic reporting. Settings on the device can be altered remotely via LoRaWAN™ or locally via USB.

  • LoRaWAN™ low-power long-range connectivity
  • 2x 24-bit RTD
  • 1x 24-bit Voltage input (0-10 V with compressing range)
  • 1x 24-bit 4-20 mA
  • 4x 32-bit dry-contact counting digital inputs, 2 x digital outputs
  • 400 Hz 3-Axis Accelerometer
  • 3 x AA Lithium Energizer battery
  • Fully reconfigurable via LoRaWAN™ downlinks


SE-100 Photometric Sensor

The sensor features a rugged, aluminium housing that is fully-submersible and is built to withstand harsh conditions. The sensor cable includes an IP68 marine-grade stainless-steel cable connector 30 cm from head to simplify sensor removal and replacement from permanent installations for maintenance and calibration. Typical applications of photometric sensors include measuring light levels for human vision in offices, sports arenas, hospitals, museums and more.


Output (sensitivity): 0.001 mV per lux
Calibration Factor (Reciprocal of Sensitivity): 1000 lux per mV
Calibration Uncertainty: ±5%
Output Range: 0 to 200 mV
Measurement Range: 0 to 200 Klux
Measurement Repeatability: Less than 0.5%
Long-term Drift (Non-stability): Less than 2% per year
Non-linearity: Less than 1%
Response Time: Less than 1 ms
Field of View: 180˚
Spectral Range: CIE 1931 luminous efficiency function
Directional (Cosine) Response: ±2% at 45˚; ±5% at 75˚
Temperature Response: Less than 0.1% per °C
Operating Environment: -40 to 70°C; 0 to 100% relative humidity
Dimensions: 24mm diameter, 37mm height
Mass: 100g (with 5m of cable)
Cable: 5m of shielded, twisted-pair wire; TPR jacket (high water resistance, high UV stability, flexibility in cold conditions); pigtail lead wires; stainless steel (316), M8 connector located 25cm from sensor head