Leaf Wetness Smart Sensor

Product Options


The Leaf Wetness Smart Sensor provides accurate leaf wetness data in a number of growing and research applications. The sensor is ready to use and does not require any painting or coating. It uses a capacitive grid that is less sensitive to surface residues than resistive grid-based sensors, and comes preconditioned for consistent measurements between sensors and for long-term stability. Along with a 3-meter cable, a mounting bracket is included so the sensor can be easily positioned to mimic the wet-dry characteristics of the plants being studied.

Manufactured by: Onset
Model: Leaf Wetness Smart Sensor

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Leaf wetness


Measurement range 0 (dry) to 100% (wet)
Operating range -40°C to 70°C, (-40°F to 158°F)
Repeatability ± 5%
Resolution 0.59%
Stability < ± 5% per year
Interchangeability between sensors (over the range 10-90%) ± 10%
Measurement averaging option No
Housing No coating required
Sensor type  Capacitive Grid
Sensor plate 4.7 cm x 5.1 cm (1.8” x 2.0”)
Tube 12.2 cm length x 1.8 cm diameter (4.8” x 0.7”)
Cable length 3m (9.8’)
Length of Smart Sensor Network Cable 3m
Approximate weight 127 g (4.5 oz) for sensor, and 290 g (10.2 oz) with mounting bracket
Mounting bracket 20 cm long (8”);Sensor can be positioned at any angle between 0 and 90 degrees (vertical)
Number of data channels 1
For mounting on Onset tripods or masts 3.2 cm to 4.1 cm (1 1/4” to 1 5/8”), Cross Arms (Part # M-CAA or M-CAB), or flat surfaces. U-bolt and tie-wraps included.
The CE Marking identifies this product as complying with all relevant directives in the European Union (EU)