Name: 7Semi Industrial RS485 Temperature & Humidity Sensor Probe
Brand: 7Semi
SKU: 004-ES-12248
Price: 2347.02 INR
Availability: InStock

Technical Specifications

Brand:

7Semi

Temperature Measurement Range:

-40 ~ 125°C

Humidity Measurement Range:

0 ~ 100% RH

Temperature Accuracy:

±0.1°C (25°C)

Humidity Accuracy:

±1% RH (25°C)

Power Supply Voltage:

9- 60 V

Probe Size:

200mm(L) × 15.7mm(D) / 7.87 × 0.62 inch

Output Signal:

RS485 signal

Communication Protocol:

Standard MODBUS RTU protocol

Baud Rate:

9600 (default); configurable to 19200, 38400, 115200

Display Resolution:

Temperature: 0.1°C; Humidity: 1% RH

Cable Length:

2 Meter

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.

Description

The 7Semi Industrial RS485 Temperature & Humidity Sensor Probe is an industrial-grade sensor engineered for precision and durability in demanding environments. Leveraging Modbus RTU over RS485, it delivers highly accurate readings with excellent long-term stability. Housed in a robust stainless steel probe with a breathable, waterproof, and dust-resistant sintered metal filter, it’s ideal for HVAC systems, building automation, climatology, and industrial monitoring.

This version includes a 2-meter cable, a wide 9–36V DC input range, DIP switch-configurable Modbus address and baud rate, and onboard signal processing. Fully plug-and-play with SCADA, PLCs, HMIs, and Arduino/MCUs.

Key Features

RS485 Modbus RTU Output (Standard Protocol)
Temperature Range: -40°C to +125°C
Humidity Range: 0% RH to 100% RH
High Accuracy: ±0.1°C (Temp), ±1.5% RH (Humidity) at 25°C
Wide Input Voltage: 9V–36V DC
DIP switch for Modbus ID & Baud Rate Configuration
Easy 4-wire Connection: VCC, GND, RS485 A+, RS485 B−

Wiring Guide

Applications

HVAC control and ventilation
Building automation systems (BAS)
Data centers and server rooms
Museums, archives & climate control rooms
Industrial plants and process monitoring
Smart agriculture and greenhouses
Weather stations and environmental sensing

Frequently Asked Questions (FAQ)

Q1: Is the sensor compatible with PLCs and SCADA systems?
Yes, the sensor uses RS485 with Modbus RTU, compatible with most industrial automation systems.

Q2: How do I read the sensor values?
Use Modbus function code 0x03 to read two 16-bit registers. Divide by 10 to get the actual values in °C and %RH.

Q3: How is the device configured?
You can set the Modbus address (1–255) and baud rate using onboard DIP switches. Supported baud rates include 9600, 19200, 38400, and 115200.

Q4: Can I interface this with Arduino?
Absolutely. It includes a sample Arduino wiring and code setup using RS485 to TTL adapters.