The 7Semi RS485 Industrial Environmental Sensor Probe MODBUS RTU – Temp, Humidity, VOC, NOX is a high-performance, multi-parameter environmental sensor designed for precise monitoring of Temperature, Humidity, VOCs, and NOx-based using the industry-standard RS485 Modbus RTU protocol.
Built around an advanced digital sensing core and engineered for stable long-term operation, this probe is ideal for HVAC automation, smart farming, industrial IAQ monitoring, environmental data logging, and weather/climate measurement applications.
It delivers high-resolution raw gas values along with calculated Air Quality Indices, allowing developers, integrators, and industrial systems to access both processed and raw environmental signals.
This version includes a 2-meter, features a wide 9–36V DC input range, Software configurable Modbus address and baud rate, and onboard signal processing. Fully plug-and-play with SCADA, PLCs, HMIs, and Arduino/MCUs.
Key Features
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High-accuracy temperature & humidity
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VOC & NOx-based air quality monitoring
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RS485 Modbus RTU communication
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Long-distance up to 1200m
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Raw gas outputs + calculated IAQ indices
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Industrial-grade performance
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Fast response and low drift
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Ideal for both indoor and outdoor applications
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Ideal for PLCs, IoT gateways, data loggers, and SCADA
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Wide Input Voltage: 9V–36V DC
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Software Configuration for Modbus ID & Baud Rate
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Easy 4-wire Connection: VCC, GND, RS485 A+, RS485 B−
Wiring Guide
What’s Included
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1x 7Semi RS485 Temperature & Humidity Sensor Probe
Resources
- Temperature Range:
- -40°C to +125°C
- Humidity Range:
- 0% to 100% RH
- Accuracy (Temp @25°C):
- ±0.1°C
- Accuracy (Humidity @25°C):
- ±1.5% RH
- Resolution:
- 0.1°C / 0.1% RH
- Power Supply:
- 9–36V DC
- Output Interface:
- RS485 (Modbus RTU)
- Baud Rates:
- 9600 (default); configurable to 19200, 38400, 115200
- Probe Length:
- 150mm
- Probe Diameter:
- 15.7mm
- Cable Length:
- 2 meters
- Weight:
- 100g
- Protection:
- Breathable, dust-proof
