
386159 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $284.78 | Condition is New, *NEW* Greenheck 386159 Room Temp/Humidity Modbus Sensor 16.8-28.8VAC Or 9-40VDC, FREE SHIPPING | 100.0% |
![]() | $606.85 | Condition is New, Greenheck 386159 TEMP & HUMIDITY SENSOR, FREE SHIPPING | 99.7% |

The Greenheck 386159 Temp/Humidity Modbus Sensor is a versatile and high-performing environmental monitoring device designed for use in HVAC systems and other industrial applications. This sensor is capable of measuring both temperature and relative humidity levels with great accuracy, making it an essential tool for maintaining optimal indoor environments.
The sensor operates on a wide voltage range, making it suitable for various power supply configurations. It can function smoothly with an AC voltage ranging from 16.8 to 28.8 volts or a DC voltage between 9 and 40 volts. This flexibility in power requirements ensures that the sensor can be easily integrated into different systems without the need for additional power conversion components.
The Greenheck 386159 sensor is built with Modbus communication protocol, enabling seamless data exchange between various devices and systems. This feature makes it simple to collect, process, and analyze environmental data in real-time, allowing for efficient and proactive management of indoor climate conditions.
Featuring a compact and rugged design, this sensor is built to withstand the rigors of industrial applications. Its durable construction, combined with its high accuracy and reliability, ensures long-term performance and minimal maintenance requirements.
The sensor's temperature measuring range extends from -20 C to 80 C (-4 F to 176 F), while its humidity range spans from 0% to 100%. This broad capacity makes it suitable for a wide range of applications, including temperature and humidity control in data centers, laboratories, greenhouses, and other industrial facilities.
In summary, the Greenheck 386159 Temp/Humidity Modbus Sensor is a versatile, high-performing, and reliable environmental monitoring device. Its ability to measure both temperature and humidity levels with great accuracy, along with its wide voltage range and Modbus communication capabilities, make it an essential tool for maintaining optimal indoor environments in various industrial applications.
Pros and Cons of Buying Greenheck 386159 Temperature/Humidity Modbus Sensor
1. Description:The Greenheck 386159 is a temperature and humidity sensor designed for HVAC applications. It supports both Modbus ASCII and Modbus RTU communication protocols and can operate on a wide voltage range of 16.8-28.8VAC and 9-40VDC.
2. Pros:- Wide voltage range support: The sensor can operate on a wide range of voltages, making it suitable for various HVAC systems.
- Modbus communication: This sensor uses the Modbus communication protocol, which is widely adopted in industrial automation and HVAC systems.
- Temperature and humidity measurement: The sensor can measure both temperature and humidity, providing more comprehensive data for HVAC system control and monitoring.
3. Cons:- Potential calibration issues: Some users have reported issues with the sensor's calibration accuracy out of the box. Calibration may be necessary to ensure accurate readings.
- No display: The sensor does not have a built-in display, requiring users to rely on external devices for monitoring and control.
- Limited documentation: The available documentation for the sensor may not be comprehensive enough for some users, making it challenging to set up and use the sensor effectively.
4. Conclusion:The Greenheck 386159 Temperature/Humidity Modbus Sensor is a versatile and feature-rich option for HVAC applications, offering wide voltage range support and Modbus communication. However, potential calibration issues, the lack of a built-in display, and limited documentation may impact its usability and ease of implementation for some users.
5. Recommendation:If you require a temperature and humidity sensor for your HVAC system that supports Modbus communication and can operate on a wide voltage range, the Greenheck 386159 could be a suitable choice. However, be prepared for potential calibration issues, and ensure you have the necessary resources and expertise to set up and configure the sensor effectively. If calibration concerns are a major concern, consider alternatives with better documented calibration procedures or sensors with built-in displays for real-time monitoring.
Details:
With a power range of 16.8-28.8vac or 9-40vdc, this sensor ensures accurate readings and compatibility with wide systems. The new Greenheck 386159 room temp/humidity modbus sensor is a reliable and efficient tool for monitoring temperature humidity levels in various industrial hvac settings.
specifications maxohvac:
- brand: Greenheck
- mpn: 386159
- part type: Sensor
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
payments maxohvac:
- other
- credit card: visa
- wallet: apple-pay
shipping maxohvac:
- type: calculated
- carrier: usps
- transit: 5-10 days
- service: usps ground advantage
- class: standard
returns maxohvac:
- method: money back
- paid by: buyer
- time: 14 days
- policy: returns accepted
seller maxohvac:
- city: maumee, ohio
- # reviews: 607
- rating: 100.0%
offer maxohvac:
- sold #: 10
- started: december 21, 2025
- in stock #: 2
- prices: $284.78–$606.85
- item condition: New
- availability: in stock
- options: ship-to-home
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