Ebyte EID041-G01S High-precision Acquisition Industrial Module Rail Modbus-RTU Protocol RS485 Temperature and Humidity Sensor

Practical Application Scenarios

1. Industrial Cabinet Environment Monitoring with EBYTE ME31 Distributed IO Host

This EID041-G01S connects to the RS485 bus of EBYTE ME31 IO module to build cabinet environmental monitoring systems for CNC machine control cabinets and PLC electrical cabinets. Its SHT30 high precision chip captures real-time internal temperature and humidity data, transmits readings via Modbus RTU to the IO host, and triggers fan or heater relay outputs automatically when thresholds are exceeded. The DIN rail mounting design allows quick installation inside crowded cabinet spaces, and three-proof coating resists dust and damp inside production workshops.

2. Smart Warehouse & Cold Storage Climate Supervision

Multiple EID041-G01S transmitters form an RS485 multi-drop bus network to monitor segmented temperature and humidity inside pharmaceutical warehouses and low-temperature cold storage. The wide measurement range covers refrigeration negative temperature and normal storage environment, and adjustable Modbus addresses avoid bus signal conflict. Collected environmental data is uploaded to industrial HMI touch screens or upper computer configuration software for 24-hour data recording and abnormal alarm push.

3. Greenhouse Precision Agriculture Monitoring System

Matched with EBYTE LoRa wireless modules like E220 series, the sensor collects greenhouse air temperature and humidity, then transmits Modbus data to remote LoRa gateways for long-distance agricultural IoT data upload. DC 5-36V wide voltage supports solar power supply for field greenhouses without mains power, and industrial wide temperature operation adapts summer high temperature and winter frost greenhouse conditions.

4. Server Room & Data Center Microenvironment Control

Installed on electrical distribution rails inside server racks, EID041-G01S continuously monitors heat accumulation around network switches and servers. Its 0.2 Celsius high precision accurately captures subtle temperature rises caused by equipment overload, and transmits real-time data to SCADA monitoring platforms through RS485 lines to realize early overheating warning and air conditioning linkage control.

5. Outdoor Charging Pile Cabinet Monitoring

The three-proof shell anti-salt spray and anti-humidity coating adapts outdoor charging pile cabinet working conditions. It collects internal environmental data of new energy charging piles, communicates with pile main control board via Modbus RTU, and sends humidity over-limit signals to start dehumidification equipment to prevent circuit board short-circuit failure caused by dampness.

 

FAQ Section

1. What is the core difference between EID041-G01S and EID041?

The key difference lies in the built-in sensing chip. EID041-G01S adopts imported SHT30 chip with 0.2 Celsius temperature accuracy, while EID041 uses AHT20 chip with 0.3 Celsius temperature accuracy. All other hardware dimensions, communication interfaces and installation structures remain fully consistent, so they can be interchangeably used on the same Modbus RS485 bus without wiring modification.

2. Can multiple EID041-G01S sensors share one RS485 bus?

Yes, each transmitter supports independent Modbus address setting from 1 to 255. Users can assign unique addresses to every sensor on the same RS485 bus to eliminate data conflict, and the device supports 8 optional baud rates to match different transmission distance demands.

3. Does EID041-G01S support direct connection with PLC and HMI?

It fully supports standard Modbus RTU protocol which is widely adopted by industrial PLC, touch HMI and upper computer configuration software. No extra protocol conversion module is required; users only need to set matching baud rate and Modbus register address to read temperature and humidity data directly.

4. Will reverse power connection damage EID041-G01S hardware?

This transmitter integrates built-in anti-reverse connection protection circuit for DC power input within 5~36V voltage range. Incorrect positive and negative wiring will not burn internal chips, effectively reducing on-site installation fault risks for field engineers.

5. What harsh working environments can the three-proof shell withstand?

The special surface coating realizes anti-fungal, anti-humidity and anti-salt spray performance, so the module can stably operate in coastal factories, chemical workshops, damp underground cabinets and other high-corrosion industrial environments for long-term continuous monitoring.