• Xian Votesen Electronic Technology Co., Ltd.
    w***Nel, US
    I worked with Jack Yin, he was extremely helpful, willing to accommodate all my customizations and provided an excellent quality product. Thanks Jack, will work with you and Votesen again.
  • Xian Votesen Electronic Technology Co., Ltd.
    Very trustful supplier!
  • Xian Votesen Electronic Technology Co., Ltd.
    Great product. Good delivery time. Now my project is on course!
Contact Person : Mike Su
Phone Number : +8617782470268
WhatsApp : +8617782470268

Protocol RTU Temperature Sensor SHT30 30V Temperature And Humidity Sensor RS485

Place of Origin China
Brand Name VOTESEN
Certification CE, ROHS
Model Number VTH300-T
Minimum Order Quantity 3
Price Negotiable Price
Packaging Details Carton
Delivery Time 7-25 working days
Payment Terms T/T
Supply Ability 35000pcs per day
Product Details
Chip Original Sensirion SHT30 (Customizable) Output RS485 Modbus RTU
Application IoT, Server Room, Laboratory, HVAC, Weather Stations Power Supply DC5-30V
RS485 Communication Distance Up To 1000 Meters Humidity Range 0%RH~80%RH
Temperature Range -40℃~+60℃ Baud Rate Default 9600 (Customizable)
High Light

Protocol RTU Temperature Sensor 30V


RS485 RTU Temperature Sensor 30V


RTU temperature and humidity sensor rs485

Leave a Message
Product Description

RS485 Modbus RTU Protocol SHT30 Humidity Temperature Transmitter

Votesen VTH300-T Humidity and Temperature Transmitter has excellent reliability, high precision, and interchangeability. It adopts the 100% original import Sensirion industrial-grade high-precision temperature and humidity sensor. The default temperature and humidity sensor of this transmitter are SHT30, you can customize other types of SHT Sensirion chip according to your needs, such as SHT20, SHT21, SHT25, SHT31, and SHT35.


Its RS485 hardware interface adopts the lightning protection design. The protocol layer is the standard industrial Modbus RTU protocol. When you connect the RS485 hardware interface, the sensor will output the temperature and humidity through the serial port adjustment tool. The RS485 communication distance can be up to 1000 meters. The three major parts of the transmitter: input power supply, temperature & humidity measurement unit, and signal output are completely isolated. Thus our product is more safe and reliable, beautiful in appearance, and easy to install.

Protocol RTU Temperature Sensor SHT30 30V Temperature And Humidity Sensor RS485 0



Protocol RTU Temperature Sensor SHT30 30V Temperature And Humidity Sensor RS485 1

Power Supply DC5-30V
Output Signal RS485 Signal
Communication Protocol Modbus-RTU Protocol
RS485 Communication Distance Up to 1000 Meters
Mailing Address 1~247 can be set, default 1
Baud Rate Can be set, default 9600 8 bit data, 1 bit stop, no check
Temperature Range -40℃~+60℃
Temperature Precision ±0.5℃ (25℃)
Temperature Resolution 0.1℃
Humidity Range 0%RH~80%RH
Humidity Precision ±3%RH
Humidity Resolution 0.1%RH
Equipment Power Consumption ≤2W
Product Size 66*46*29mm
Product Weight 41g























100% Original Import Sensirion Sensor

★ High Accuracy Measuremen

★ Strong Anti-Interference Ability

★ Long-Term Stability

★ Fast Response

Standard Industrial RS485 Signal Output

★ Modbus RTU Protocol

Distance Up to 1000 Meter

35mm Standard Rail Installation

★ Wide Voltage Supply



IoT Applications

★ Engine Room


★ Greenhouse

★ Laboratory

★ Aquaculture

★ Musuem

★ Electrical Cabinet

★ Computer Room Monitoring

Server Room



※0x03: Read keep register

※0x04: Read input register

※0x06: Write a single keep register

※0x10: Write more keep register

Register Type Register Address Register Contents Number of Bytes
Input Register 0x0001 Temperature 2
0x0002 Humidity 2
Keep Register 0x0101 Device Address 2
0x0102 Baud Rate 2
0x0103 Temperature Correction(/10) 2
0x0104 Humidity Correction(/10) 2



To customize the most suitable humidity temperature transmitter for your application, kindly let us know your requirements:

1. SHT Sensor Chip:

2. Order Quantity: