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7Semi RS485 Modbus IAQ CO2 Industrial Pressure Environmental Sensor
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The 7Semi RS485/MODBUS RTU Industrial Environmental Probe is a multi-parameter environmental monitoring solution designed to measure air quality, VOC, CO2-equivalent index, atmospheric pressure, humidity, and temperature. Built with an industrial-grade sealed probe, it provides stable and reliable performance in demanding environments while supporting continuous monitoring through the RS485 Modbus RTU communication protocol.
Designed for industrial automation and environmental monitoring applications, the probe operates from a wide 9–36 V DC input voltage and integrates easily with PLCs, SCADA systems, IoT gateways, and data logging equipment. The two-meter cable allows flexible installation, while software configuration of the Modbus device address and baud rate simplifies deployment across different industrial networks.
The sensor measures temperature from -40°C to +85°C, humidity from 0% to 100% RH, atmospheric pressure from 300 to 1100 hPa, and gas resistance for IAQ, VOC, and CO2-equivalent index evaluation. Fast humidity response, low drift characteristics, and built-in processing provide consistent measurements for long-term monitoring applications.
The 7Semi RS485 Industrial Environmental Probe is suitable for HVAC systems, indoor air quality monitoring, smart agriculture, industrial automation, weather stations, environmental sensing, industrial safety systems, and building automation. Its multi-parameter sensing capability enables comprehensive environmental monitoring through a single industrial communication interface.
• The 7Semi RS485 Industrial Environmental Probe measures air quality, VOC, CO2-equivalent index, pressure, humidity, and temperature in a single device.
• It communicates using the industry-standard RS485 Modbus RTU protocol for reliable industrial data transmission.
• The sensor operates from a wide 9–36 V DC input voltage for compatibility with industrial power systems.
• Temperature measurements cover a range from -40°C to +85°C with an accuracy of ±0.5°C between 0°C and 65°C.
• Relative humidity is measured from 0% to 100% RH with an accuracy of ±3% RH.
• Atmospheric pressure measurements are supported from 300 to 1100 hPa.
• The probe provides gas resistance measurements for IAQ, VOC, and CO2-equivalent index monitoring.
• Pressure measurement accuracy is specified as ±0.5 hPa absolute and ±0.05 hPa relative.
• Humidity response time is 1 second (0–63%) for rapid environmental monitoring.
• IAQ response modes include Low-power mode with a 3-second response and Ultra-low-power mode with a 300-second response.
• The sealed industrial probe is designed for stable performance in dusty, humid, and demanding operating conditions.
• A 2-meter cable provides flexibility for installation in industrial and commercial monitoring systems.
• Software configuration allows adjustment of the Modbus device address and baud rate.
• The probe is suitable for HVAC control, indoor air quality analysis, smart agriculture, industrial safety, weather stations, and environmental sensing applications.
| Brand | 7Semi |
| Product Type | RS485/MODBUS RTU Industrial Environmental Probe |
| Communication | RS485 Modbus RTU |
| Input Voltage | 9–36 V DC |
| Cable Length | 2 m |
| Temperature Range | -40°C to +85°C |
| Temperature Accuracy | ±0.5°C (0–65°C) |
| Humidity Range | 0–100% RH |
| Humidity Accuracy | ±3% RH |
| Humidity Response Time | 1 s (0–63%) |
| Pressure Range | 300–1100 hPa |
| Pressure Accuracy (Absolute) | ±0.5 hPa |
| Pressure Accuracy (Relative) | ±0.05 hPa |
| Gas Measurement | Gas resistance for IAQ, bVOC, and CO2-equivalent index |
| IAQ Response Modes | Low-power: 3 s, Ultra-low-power: 300 s |
| Target Gas | Air Quality, VOC, CO2 |
This product comes with a 6-month manufacturer warranty from the date of purchase, covering manufacturing defects only.
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.
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