Temperature Humidity Sensor with Alarm, RS485

SKU: SUCH-TH-ALARM
$139.99
● Output signal RS485 ● Communication protocol MODBUS RTU ● Measuring range of temperature: -40~80℃, humidity: 0~99.9% ● Supply voltage DC 9-36V/USB: 5V
🚚 Free shipping
🕒 Delivery date: 6-12 days
🔁 30-day Returns
Overview

Temperature humidity sensor with alarm, is an advanced digital transmitter designed for precise environmental monitoring. It features a high-accuracy temperature and humidity sensor with strong anti-interference and long-term stability. Supporting RS485 output with the MODBUS RTU protocol, it ensures reliable data communication over distances up to 1000 meters. SUCH temp and humidity sensor includes a built-in alarm function for high and low temperature or humidity alerts and a high-definition TFT color display for real-time data visualization. With a wide measuring range of -40~80°C and 0~99.9% RH, powered by DC 9-36V or USB 5V, this humidity sensor is ideal for industrial sites, HVAC systems, smart buildings, laboratories, and other environmental monitoring applications.

Feature

  • High Measurement Accuracy: Alarm temperature humidity sensor equipped with a high-quality digital temperature and humidity sensor, it ensures precise readings, excellent anti-interference capability, and long-term stability for consistent performance.
  • Built-in Alarm Function: Features an internal alarm module that provides high and low temperature or humidity alerts, allowing users to monitor environmental changes in real time.
  • RS485 Communication Output: Supports RS485 signal transmission with the standard MODBUS RTU protocol, ensuring reliable and flexible data communication.
  • Long-Distance Transmission: Designed for stable signal transmission over distances up to 1000 meters, suitable for large-scale industrial monitoring systems.
  • High-Definition TFT Display: The bright TFT color screen provides clear and intuitive visualization of temperature and humidity readings.
  • Multi-Device Networking: Supports networking of up to 254 devices, enabling integration into multi-point temperature and humidity monitoring systems.
  • Wide Application Range: Ideal for industrial workshops, power rooms, communication rooms, HVAC systems, intelligent buildings, museums, archives, and offices, offering a complete environmental monitoring solution.

Detail

Room temperature humidity sensor detail

No. Description No. Description
1 Menu key / Back key 2 Confirm key
3 Up / + 4 Down button / -
5 Display part 6 Back cover lock
7 USB power supply and connection 8 Wiring part
9~11 Screw hole 12 Plastic buckle
13~16 Cable position / /


Wiring

Room temperature humidity sensor wiring

 

 

Specs
Weight 47.2g
Dimension (L*W*H) 100*84*21mm
Output signal RS485
Communication protocol MODBUS RTU
Supply voltage DC 9-36V/USB: 5V
Measuring range of relative humidity 0~99.9%RH
Measuring range of temperature -40~+80℃
Accuracy of humidity ±2%RH
Accuracy of temperature ±0.3℃
Resolution 0.1℃/0.1%RH
Long-term stability <0.5%RH/year, <0.1℃/year
Current consumption <50mA (5V)
Sampling period 2s
Maximum communication distance 1000m
Alarm modes High humidity, low humidity, high temperature, low temperature
Housing material Engineering plastics
Working environment Temperature: -40~80℃, humidity: 0~99.9% no condensation
Storage environment Temperature: 0~60℃, humidity: <90%RH
Wiring White: RS485 B-, black: GND, red: V+, yellow: RS485 A+
Application
Duct humidity sensor hvac systems

HVAC Systems

Indoor environment monitoring

Indoor Environment Monitoring

Laboratory climate control cabinet

Laboratory Climate Control Cabinet

FAQ

Yes, it is designed for 24/7 continuous operation in monitoring systems, providing stable and reliable long-term performance.

Keep the housing clean and free from dust. Avoid using solvents or water; instead, wipe gently with a dry or slightly damp cloth. For long-term stability, ensure the sensor is protected from direct exposure to condensation or corrosive gases.

Each unit is factory-calibrated before shipment. However, periodic calibration is recommended for high-precision applications or environments with extreme temperature and humidity variations.

0.0 0
Write your own review Close
*
*