
A-RH2-D Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $55.25 | Condition is New – Open box, ACI Automation Components A/RH2-D HVAC Duct Sensor ACI/RH-2-D, shipping cost = $12.00 | 99.4% |
![]() | $69.99 | Condition is New – Open box, ACI Automation Components A/RH2-D HVAC Duct Sensor ACI/RH-2-D NOS, FREE SHIPPING | 97.4% |
![]() | $95.00 | Condition is New – Open box, ACI A/RH2-D Duct Humidity Sensor RH2% 0-5, 0-10 or 4-20mA (New In Box), shipping cost = $8.75 | 100.0% |
![]() | $100.00 | Top Pick! Condition is New – Open box, ACI A/RH2-D, shipping cost = $5.97 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $69.99 | Condition is New, ACI Automation Components A/RH2-D HVAC Duct Sensor ACI/RH-2-D NOS, FREE SHIPPING | 100.0% |
![]() | $74.99 | Condition is New, Automation Components A/RH2-D Duct Sensor NEW! ACI/RH-2-D, FREE SHIPPING | 100.0% |
![]() | $63.33 | Condition is New, ACI A/RH2-D Duct Humidity Sensor, 0-5; 0-10; 4-20mA; NEW and UNUSED; LOW PRICE, shipping cost = $14.24 | 100.0% |
![]() | $85.64 | Top Pick! Condition is New, Duct Mount RH Sensor A/RH2-D RH 2% ACI, FREE SHIPPING | 100.0% |
![]() | $125.00 | Condition is New, ACI A/RH2-D Relative Humidity Duct & Outside Series Sensor, +-2%, FREE SHIPPING | 100.0% |
![]() | $188.00 | Top Pick! Condition is New, ACI A/RH2-D Duct Relative Humidity Sensor RH2% EH 15-36VDC 24VAC, shipping cost = $8.62 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $30.00 | Condition is For parts or not working, Humidity Sensor A/RH2-D ACI 0-10Vdc/mA Duct Mount 2% Accuracy - FOR PARTS, shipping cost = $9.42 | 100.0% |

The ACI A/RH-2D Automation HVAC Duct Sensor, manufactured by Acieta, is a state-of-the-art device designed to optimize your heating, ventilation, and air conditioning (HVAC) system's performance. This sensor, specifically modeled as ACI/RH-2D NOS, is engineered to measure both temperature and relative humidity within your ductwork.
The ACI A/RH-2D Automation HVAC Duct Sensor is a versatile and reliable tool for any HVAC system. It is designed with a robust, stainless steel housing that ensures durability and longevity in even the most demanding environments. This sensor is suitable for use in both residential and commercial applications.
The sensor features an advanced, high-precision temperature and humidity measurement system. The temperature measurement range is from -10 C to 60 C (-14 F to 140 F), providing accurate temperature readings in a wide range of conditions. The humidity measurement range is from 0% to 100% RH (Relative Humidity), ensuring precise humidity readings in various environments.
One of the most significant advantages of the ACI A/RH-2D Automation HVAC Duct Sensor is its integration with automation systems using the Modbus protocol. This feature allows for seamless communication between your HVAC system and the sensor, providing real-time data and enabling automatic adjustments to maintain optimal temperature and humidity levels.
The sensor is also equipped with a diagnostic LED indicator, which simplifies troubleshooting and maintenance tasks. This LED indicates the status of the sensor and alerts you to any potential issues, ensuring that your HVAC system is always functioning at its best.
The ACI A/RH-2D Automation HVAC Duct Sensor is easy to install and requires minimal maintenance. It can be mounted directly to the ductwork using the included mounting hardware, and its compact size ensures that it fits in most applications. The sensor is also compatible with a wide range of HVAC control systems, making it a flexible and versatile solution for your temperature and humidity monitoring needs.
In summary, the ACI A/RH-2D Automation HVAC Duct Sensor is a high-performance, reliable, and versatile solution for optimizing your HVAC system's performance. Its advanced temperature and humidity measurement capabilities, Modbus integration, and easy installation make it an essential tool for any HVAC application.
ACI A/RH-2D Automation HVAC Duct Sensors, manufactured by Honeywell, are intelligent sensors designed for use in HVAC (Heating, Ventilation, and Air Conditioning) systems. These sensors play a crucial role in optimizing energy efficiency and indoor air quality by providing real-time temperature and humidity data from ductwork. In this response, we will discuss the pros and cons of investing in ACI A/RH-2D Nos (Networked Outdoor Sensors) for your HVAC system.
Pros:1. Enhanced Energy Efficiency: ACI A/RH-2D sensors allow HVAC systems to respond to changing environmental conditions in real-time. By continuously monitoring temperature and humidity levels in ductwork, these sensors can help optimize system performance, reducing energy consumption and costs.
2. Improved Indoor Air Quality: By accurately measuring and maintaining temperature and humidity levels within ductwork, these sensors contribute to better indoor air quality. This can lead to increased occupant comfort and potential health benefits.
3. Remote Monitoring and Control: Networked sensors like the ACI A/RH-2D Nos enable remote monitoring and control of HVAC systems. This can be especially beneficial for large facilities or buildings with multiple HVAC units, as it allows for centralized management and easier troubleshooting.
Cons:1. Cost: ACI A/RH-2D sensors and networked versions like the Nos can be more expensive than traditional temperature and humidity sensors. The additional cost is due to their advanced features and capabilities.
2. Installation Complexity: Installing and configuring ACI A/RH-2D sensors and networked versions may require specialized knowledge and additional time compared to simpler sensors. Hiring a professional HVAC technician or consultant may be necessary for proper installation and configuration.
3. Dependence on Network Connectivity: As networked sensors, ACI A/RH-2D Nos rely on a stable network connection for data transmission and remote management. Any disruptions in network connectivity could impact the performance of the sensors and the overall HVAC system.
Conclusion:ACI A/RH-2D Automation HVAC Duct Sensors, including the networked version (Nos), offer several advantages such as enhanced energy efficiency, improved indoor air quality, and remote monitoring and control. However, they come with some disadvantages, including higher cost, installation complexity, and dependence on network connectivity.
If your HVAC system requires advanced temperature and humidity monitoring capabilities, or if you manage a large facility with multiple HVAC units, investing in ACI A/RH-2D Nos could be a worthwhile investment. However, if your HVAC system's needs are more basic, traditional temperature and humidity sensors may be a more cost-effective solution.
In conclusion, the decision to purchase ACI A/RH-2D Nos for your HVAC system depends on your specific requirements, budget, and expertise. Consulting with an HVAC professional can help you determine whether these advanced sensors are the right choice for your needs.
Details:
Hvac duct sensor, model / part no. There is writing on the exterior of box, however contents are unaffected. A/rh2-d, rh 2% eh supply: 15-36 CDC, 24 vac output: 0-5 0-10 4-20ma, new old stock surplus, surplus job stock, in the original box with instructions, calibration certificate mounting screws.
specifications maxohvac:
- brand: Aci
- mpn: A/rh2-d
- type: Duct Sensor
- unit type: Unit
- country/region of manufacture: United States
- warehouse location: Rack Fd
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
payments maxohvac:
- other
- wallet: google-pay
- credit card: diners-club
seller maxohvac:
- # reviews: 14161
- rating: 100.0%
- city: goffstown, new hampshire
offer maxohvac:
- sold #: 19
- started: april 26, 2025
- best offers: true
- in stock #: 5
- prices: $30.00–$188.00
- item condition:
- New – Open box
- New
- For parts or not working
- options: ship-to-home
- availability: in stock
shipping maxohvac:
- class: standard, expedited
- transit: 4-9 days
- carrier: usps, ups
- type: calculated
- service: usps first class, usps priority mail, ups 2nd day air, usps priority mail express
returns maxohvac:
- time: 30 days
- policy: returns accepted
- paid by: buyer
- method: money back
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