Product Information - 237, 237F

Wetness Sensing Grid

Features

• 237 sensor consists of a rigid epoxy circuit board
• 237F sensor consists of a flexible polyamide film circuit
• Following calibration by user, detects periods of leaf wetness caused by rainfall, dew, or spray
• Measures electrical resistance between interlacing gold-plated fingers on circuit board
• Size and smoothness of sensor emulates surface area of leaf

General Description

• Surface contact types that measure the electrical resistance of a water film on the leaf surface
• Mechanical types that detect a change in sensor length or weight
• Electrical resistance types that are applied to mock leaves and are designed to emulate periods of leaf wetness after rainfall, dew, or spray