Leaf Humidity Sensor, Temp, RS485/4-20mA/0-5V/0-10V/WiFi

SKU: SUCH-TH-LEAF
$85.99
● Humidity measuring range 0~100% RH ● Temperature measuring range -30°C ~ +70°C ● Output signal RS485/4-20mA/0-5V/0-10V/WiFi ● Power supply 5-24VDC
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🚚 Free shipping
🕒 Delivery date: 6-12 days
🔁 30-day Returns
Overview

Leaf temp and humidity sensor is designed to accurately monitor leaf surface temperature and humidity, providing reliable data for agricultural and environmental applications. Built with a leaf-simulated structure, humidity sensor ensures precise detection of dew, micro water droplets, and surface moisture with fast response and high stability. SUCH temperature and humidity sensor supports multiple output signals, including RS485, 4-20mA, 0-5V, and 0-10V, WiFi making it easy to integrate into various monitoring and control systems. With low power consumption, IP68 waterproof protection, and durable construction, it is ideal for use in greenhouses, crop disease warning, agricultural research, and intelligent farming environments.

Feature

Leaf humidity sensor feature

  • Leaf Simulation Structure: Designed to mimic real leaf characteristics, ensuring accurate measurement of surface temperature and humidity.
  • Low Power Consumption: Efficient operation with minimal energy use, suitable for long-term continuous monitoring.
  • High Accuracy: Temperature and humidity sensor provides precise data on micro water droplets, dew, or ice crystals on leaf surfaces.
  • Fast Response: Rapid detection of changes in the leaf environment for timely monitoring.
  • Multiple Outputs: Supports RS485 (Modbus-RTU), 4–20mA, 0–5V, and 0–10V signals for flexible integration.
  • IP68 Waterproof Protection: Sealed design resistant to water, dust, and corrosion, ideal for outdoor use in spraying, irrigation, and fertilization environments.
  • Durable Housing: ABS engineering plastic and epoxy resin materials ensure strength and reliability.
  • Easy Installation: Compact and lightweight design, can be mounted in greenhouses, weather stations, or agricultural monitoring systems.
  • Wide Applications: Used in crop disease warning, greenhouse monitoring, vegetable and flower cultivation, livestock barns, and agricultural research.

Dimension

Leaf humidity sensor size

Wiring

Leaf humidity sensor wiring

Specs
Measuring Parameter Leaf surface temperature and humidity
Measuring Range Temperature: -30°C ~ +70°C (customizable 0°C ~ 50°C or other ranges); Humidity: 0 ~ 100% RH
Resolution 0.1°C; 0.1% RH
Accuracy ±3% (0-50%, 25°C)
Output Signal A: Voltage signal (0-2V, 0-5V, or 0-10V selectable); 4-20mA (current loop)
B: WiFi
C: RS485 (standard Modbus-RTU protocol, default device address: 01)
Power Supply 5-24VDC (for 0-2V and RS485 output)
12-24VDC (for 0-5V, 0-10V, and 4-20mA output)
Output Impedance 10kΩ (voltage output type)
Response Time ≤2s
Operating Range Temperature: -30°C ~ +70°C; Humidity: 0 ~ 100% RH
Long-term Stability Humidity: ≤ ±1% RH per year
Non-linearity ≤ ±1% RH


Current Signal Load Resistance Requirements

Supply Voltage Max. Load Resistance
12V 250Ω
20V 500Ω
24V >500Ω


Physical Parameters

Leaf Size 65 × 15 × 138.5 mm
Housing Material ABS
Sealing Material ABS engineering plastic, epoxy resin, waterproof rating IP68
Cable Specification Standard 2 m (customizable length up to 1200 m)
Application
Leaf humidity sensor for greenhouses

Greenhouses

Crop disease warning

Crop Disease Warning

Agricultural research

Agricultural Research

FAQ

A leaf humidity sensor is a device designed to simulate real plant leaves and measure surface temperature and humidity. It helps monitor micro water droplets, dew, or ice crystals on the leaf surface, providing accurate data for agricultural and environmental research.

Yes. It features IP68 waterproof sealing, making it resistant to dust, water, and corrosion, suitable for outdoor environments such as spraying and irrigation.

By monitoring leaf surface moisture, it helps detect conditions favorable to fungal or bacterial growth, enabling early pest and disease prevention.

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