SHT20 - temperature and humidity Modbus RS485 Module

Industrial Modbus RTU Protocol: Communicates over standard RS485 bus using Modbus RTU protocol, enabling seamless integration into PLCs, industrial gateways, and SCADA control systems.

Sensirion SHT20 Core Sensor: Driven by Sensirion’s high-precision SHT20 digital sensor chip to provide reliable, linearized temperature and relative humidity telemetry with low drift over time.

Long-Distance Industrial Bus Wiring: RS485 differential signaling allows noise-immune, reliable data transmission over long cable runs up to 1200 meters.

Wide Operating Supply & Surge Protection: Accepts a broad supply voltage range (9V to 30V DC) with onboard power reverse-polarity protection and transient voltage suppression (TVS).

Industrial Rail/Wall-Mount Protective Casing: Encased in a ventilated ABS industrial enclosure with screw-terminal blocks for easy surface mounting or DIN-rail panel integration.

Housing Material: Flame-retardant ABS protective enclosure with heavy-duty screw terminal wiring block.

Technical Specifications:

Sensor Element: Sensirion SHT20 Temperature and Humidity IC.

Supply Voltage: 9V – 30V DC.

Temperature Measurement Range: -40°C – +80°C (-+ 0.5°C typical accuracy).

Humidity Measurement Range: 0% – 100% RH (-+ 3% RH typical accuracy).

Communication Interface: RS485 (Modbus RTU protocol).

Default Baud Rate: 9600 bps (configurable).

Enclosure Color: Light Beige / Off-White Housing with Green Terminal Block.

Usage Advice: Connect A (+) and B (-) RS485 lines using twisted-pair cables; ensure proper termination resistors (120Ω) are placed at the bus ends for long distance networks.

Maintenance: Keep the ventilation slots free of dust, grease, and water condensation to ensure accurate ambient air sampling.

Essential Industrial Environmental Transmitter: Position as a robust, professional-grade solution for smart agriculture, server room monitoring, industrial automation, and HVAC building control networks.

Highlight RS485 & Modbus Multi-Drop Capability: Emphasize how Modbus RS485 multi-drop capability lets users daisy-chain up to 247 sensor nodes on a single 2-wire serial bus.

Recommended Cross-Sell Add-ons: Pair with AM2305 I2C digital temperature & humidity module, CO₂ Humidity & Temperature Sensor - SCD30, AM2301 (wired DHT21) temperature-humidity sensor, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Temperature Sensor Modules collection page as your standard Modbus RS485 climate monitoring transmitter module.