NBL-W-THPLC 5-in-1 Temperature, Humidity, Pressure, Light & CO2 Sensor

The NBL-W-THPLC 5-in-1 temperature humidity pressure light CO2 sensor integrates five environmental measurements in one unit: air temperature, relative humidity, barometric pressure, illuminance and carbon dioxide concentration.

This multi-parameter environmental sensor measures temperature from -50 to 100°C, humidity from 0 to 100% RH, atmospheric pressure from 10 to 1100 hPa, illuminance from 0 to 200,000 Lux and CO2 from 0 to 2000 ppm. Combining five parameters in one device reduces the number of separate sensors required at each monitoring point.

For projects requiring a CO2 sensor with RS485 Modbus, the NBL-W-THPLC provides all five measurements through Modbus RTU communication and can connect to compatible PLCs, data loggers and IoT gateways. Typical applications include greenhouse monitoring, automatic weather station systems, agriculture and environmental monitoring.

5-in-1 Temperature, Humidity, Pressure, Light & CO2 Sensor Specifications

Five Environmental Parameters in One Sensor

The NBL-W-THPLC combines five commonly required environmental parameters in one sensor. This allows a monitoring system to collect temperature, humidity, pressure, visible light and CO2 data from a single installation point and through one digital communication interface.

Key Features

5-in-1 Measurement

Measures temperature, humidity, barometric pressure, illuminance and CO2 in one integrated device.

RS485 Modbus RTU

Provides a digital interface for integration with compatible PLCs, data loggers and IoT gateways.

Fewer Separate Sensors

Combining five parameters reduces the number of separate sensor units required at one monitoring point.

Multiple Monitoring Applications

Suitable for greenhouse, agriculture, weather and distributed environmental monitoring projects.

RS485 Modbus Integration for PLCs and IoT Gateways

The NBL-W-THPLC is suitable for applications requiring a temperature humidity CO2 sensor with RS485 while also providing barometric pressure and illuminance measurements. A compatible controller can acquire all five values through the Modbus RTU interface.

When several Modbus sensors share one RS485 bus, each device should use a unique communication address. The data logger, PLC or gateway should also provide sufficient time between polling commands.

Typical System Architecture

NBL-W-THPLC → RS485 Modbus RTU → PLC / Data Logger / IoT Gateway → Cloud Platform or Private Server

The sensor itself provides measurement data through RS485. Remote transmission over 4G, Ethernet, Wi-Fi or LoRaWAN requires a compatible data logger or IoT gateway with the required communication method.

Sensor Dimensions

Greenhouse, Weather Station and Environmental Monitoring Applications

The NBL-W-THPLC can be used as a greenhouse CO2 sensor, a multi-parameter sensor within an automatic weather station system, or an environmental monitoring sensor where temperature, humidity, pressure, light and CO2 measurements are required from one monitoring point.

Greenhouse Monitoring

Automatic Weather Stations

Agricultural Monitoring

Environmental Monitoring

Industrial Monitoring

Remote Monitoring Stations

IoT Monitoring Systems

Research Projects

Installation Recommendations

Illuminance vs PAR vs Solar Radiation

The light channel of the NBL-W-THPLC measures illuminance in Lux. Illuminance, PAR and solar irradiance are different measurement quantities and should not be treated as interchangeable when selecting a sensor.

How to Select the Right Environmental Sensor

FAQ

Q1. What does the NBL-W-THPLC 5-in-1 temperature humidity pressure light CO2 sensor measure?

A1. It measures air temperature, relative humidity, barometric pressure, illuminance and carbon dioxide concentration in one integrated sensor.

Q2. What is the CO2 measurement range?

A2. The CO2 measurement range is 0 to 2000 ppm with a resolution of 1 ppm.

Q3. Does the sensor support RS485 Modbus RTU?

A3. Yes. The NBL-W-THPLC provides RS485 communication using Modbus RTU at 9600 bps.

Q4. Can the NBL-W-THPLC connect directly to a PLC or data logger?

A4. Yes. A compatible PLC, data logger or IoT gateway with an RS485 Modbus RTU interface can read the five measurement values.

Q5. Can multiple sensors share the same RS485 bus?

A5. Yes. Multiple compatible Modbus sensors can share one RS485 bus when each device uses a unique communication address and the network is wired and configured correctly.

Q6. Is the light measurement the same as PAR?

A6. No. The integrated channel measures illuminance in Lux. Projects requiring photosynthetically active radiation or PPFD in µmol/m²/s should use a dedicated PAR sensor.

Q7. Does the sensor measure solar radiation in W/m²?

A7. No. Solar irradiance in W/m² requires a pyranometer or dedicated solar radiation sensor.

Q8. Can the NBL-W-THPLC be used as a greenhouse CO2 sensor?

A8. Yes. It can provide CO2, temperature, humidity, pressure and illuminance data to a compatible greenhouse monitoring or control system. Automatic ventilation, CO2 dosing or other control actions require an external controller or software platform.

Q9. Does the sensor include built-in 4G, Wi-Fi or LoRaWAN?

A9. The sensor itself provides RS485 measurement data. Remote 4G, Wi-Fi, Ethernet or LoRaWAN communication requires a compatible data logger or IoT gateway.

Q10. Is the NBL-W-THPLC a complete automatic weather station?

A10. No. It measures temperature, humidity, barometric pressure, illuminance and CO2, but it does not measure wind speed, wind direction or rainfall. These parameters require additional sensors or an integrated weather station.

NBL-W-THPLC Datasheet

NBL-W-THPLC-5in1-Temperature-Humidity-Pressure-Illumination-CO2-Sensor-Datasheet.pdf

Quotation and Model Selection

For quotation and model selection, specify the required quantity, power supply, cable length, installation environment and the PLC, data logger or IoT gateway that will receive the RS485 Modbus data. If the project has specific requirements for communication, calibration, enclosure protection or certification, include these requirements with the inquiry.