The LF101A is a data logging system to measure and record leaf wetness. Includes declaration of conformance. Read More >

Key Features:

  • Bridge101A Bridge Data Logger
  • Leaf Wetness Sensor
  • Waterproof Enclosure



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The LF101A Includes:
(1) Bridge101A: Bridge Data Logger
(1) Leaf Wetness Sensor
(1) Waterproof Enclosure

The LF101A is a complete data logging system that accurately measures and records leaf wetness. The sensor responds to environments the same way a real leaf does. It not only records the presence of water but also logs the amount of water and detects when ice is present.

This device has a storage capacity of up to 2,064,384 readings and features a multiple start/stop function for either a manual or delayed start. Data from the logger is retrieved using the IFC200 Data Logger Interface to download the data to the MadgeTech 4 Software. Graphical, tabular, and summary data is provided for analysis and can be viewed as customizable engineering units.


Memory2,064,384 readings
Reading Rate4 Hz to 1 every 24 hours
Baud Rate115,200
LED IndicatorsRed & Green
Push-Button StartYes
Battery Life10 months typical at a 1 minute reading rate with a 350Ω load
2 years typical at a 1 minute reading rate with a 1000Ω load
MaterialABS Plastic
DimensionsEnclosure: 2.9 in x 5.8 in x 1.5 in (74 mm x 148 mm x 39 mm)
Probe: 4.4 in x 2.3 in x 0.03 in (111 mm x 58 mm x 0.76 mm)
IP RatingIP65
Operating Environment-10 °C to +60 °C (+14 °F to +140 °F), 0 %RH to 100 %RH non-condensing
Required Interface PackageIFC200


Voltage Range Dry: 266 mV typcial
100 % Saturated: 833 mV typical
Voltage Resolution 50 µV
Voltage Calibrated Accuracy ±0.01 %


LF101A Specification Sheet

LF101A Product User Guide


Part Numbers

LF101A — 900347-00


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