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LF101A Data Logger

Leaf Wetness Data Logging System.

Availability: 5-7 Business Days


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The LF101A is a complete data logging system that accurately measures and records leaf wetness. Not only does it record the presence of water but also logs the amount of water on the sensor. The sensor responds to environments the same way a real leaf does and can also detect when ice is present. This low cost system comes complete with a data logger, weatherproof enclosure and leaf wetness sensor.

The LF101A is ideal for plant disease forecasting, irrigation studies and monitoring frost cycles. It features a multiple start/stop function, ultra-high speed download capability, 1 million reading storage capacity, optional memory wrap, battery life indicator, optional password protection, programmable alarms and more. An IFC200 interface cable and software is required for use with the LF101A. The device can be started and stopped directly from a computer using the MadgeTech Software.


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


Memory 1,000,000 readings;
software configurable memory wrap
330,000 readings in multiple start/stop mode
Reading Rate 4 Hz to 1 every 24 hours
Baud Rate 115,200
LED Indicators Red & Green
Push-Button Start Yes
Battery Life 10 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
Material ABS Plastic
Dimensions Enclosure: 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 Rating IP65
Operating Environment -10 °C to +60 °C (+14 °F to +140 °F), 0 %RH to 100 %RH non-condensing
Required Interface Package IFC200
Weight 0.5000 LBS