Product Description
Industrial Leaf Wetness and Temperature Sensor (A), MODBUS-RTU RS485
Industrial Leaf Wetness and Temperature Sensor (A), MODBUS-RTU RS485DescriptionS-YM-01 Sensor comes in the shape of a leaf, simulating the wetness and temperature of a real leaf. It measures leaf wetness and temperature, providing insights for pest control, irrigation, and other management that are optimal for plant and crop health. The sensor is IP68-rated and the output signal can be RS485.Note: The Industrial Leaf Wetness and Temperature Sensor comes in two versions. The main difference is in the cable connector. Please choose the version that best suits your needs(1) Version A: with hook-up wires. It can be used with the SenseCAP LoRaWAN® Data Loggerto easily connect with the local LoRaWAN® network, enjoying the benefits of low-power and long-range communication.(2) Version B: with a waterproof aviation connector. This version saves you time in deployment as you won't have to use screws to connect the cable to the data logger. And it can be used with SenseCAP Sensor Hub 4G Data Logger instantly with ease.Features
🌱2-in-1 Sensor: Measure 2 factors: leaf wetness and temperature in one single sensor
🌱Supports universal MODBUS RS485 protocol: Supports MODBUS-RTU RS485 output Interface
🌱Simulational Sensing: Simulates the real leaf thermal resistance by sensing shape and thickness
🌱Industrial-grade design: The enclosure is IP68 rated, waterproof and dustproof, suitable for harsh environments, provides high accuracy with excellent stability
🌱Comprehensive Protection: Provides reverse power protection and Built-in TVS/ESD protection
Description
Leaf wetness is an important indicator of the infection of pathogens on the leaves. The amount of moisture on the leaf surface makes it easy to be infected by fungal and bacterial diseases. It is used for monitoring leaf moisture for agricultural purposes, such as fungus and disease control, for control of irrigation systems, for detection of fog and dew conditions, and for early detection of rainfall.
The leaf wetness & temperature sensor can measure the presence and duration of the moisture and temperature on the leaf surface. Thus, it can provide information about wetness (from dew, rain, pesticide, irrigation, etc.) and the temperature of the leaves. With these data available, farmers can make better decisions for irrigation, pest control, and other measures to make the plants and crops grow better.
This industrial Leaf Wetness and Temperature Sensor comes in the shape of a leaf, and it simulates the wetness and temperature of a real leaf. To make the sensor more robust, it is sealed with a resin-packaged plastic body, which makes it waterproof and suitable for long-time monitoring, even in outdoor harsh environments. The sensor itself tries to mimic the thermal resistance of a real leaf so that the water on the sensor condenses and evaporates at the same rate as on a real leaf. The sensor determines the wetness by measuring the change in the relative permittivity. The measurement value is proportional to the percentage of the sensing area covered with water. The output signal can be RS485, Analog Voltage, or Analog Current, and can be fed into a data logger.
Applications
🌱Science Research
🌱Smart Agriculture (outdoor & greenhouse)
🌱Irrigation Management
🌱Pest Control
🌱Bacteria Prevention
🌱Horticulture & Forestry Management

Specifications
Output Interface | RS485 Modbus-RTU |
Power Supply | 3.6-30V/DC |
Power Consumption | 6mA@24V DC |
Leaf wetness Measurement | Range:0-100%, Resolution: 0.1%, Accuracy: 5% |
Temperature Compensation | Range: -40~80°C, Resolution:0.1 °C, Accuracy: ±0.5 °C |
Measurement Technique | FDR |
IP Ratings | IP68 |
Operating Temperature | -40~85°C |
Sensor Sealed | Epoxy resin |
Installation | Mounting kit |
Cable Length | 2 meters |
Dimension | 65*13*145mm |
Dimensions

Wiring Diagram

About Prime Living
Prime Living is a Canadian online store offering a carefully selected range of quality products for home, automotive, tools, outdoor living, electronics and more.
We are committed to fast order processing, secure packaging and reliable tracked shipping to provide an excellent shopping experience.
Shipping policy
We carefully handle each order to ensure your package arrives quickly and safely. Please note that factors such as weather, postal traffic, or carrier performance may occasionally cause delays beyond our control.
We provide free shipping and dispatch all orders within 2 business days of payment, often sooner. All shipments are sent via international express air shipping, with a tracking number provided so you can follow your order every step of the way.
. Please provide a physical address, as we do not ship to P.O. Boxes.
Returns
Your satisfaction is important to us. Hexlight offers a 14-day Free return policy: if you are not fully satisfied with your purchase, you may request either a full refund or an exchange. All return shipping costs are fully covered by us.
Condition
Brand New
Shipping
This item is shipped directly from our supplier in China with tracking.