
S8403-096 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $149.99 | Condition is New, Bard Carbon Dioxide Transmitter Controller - CO2 Sensor With Relay S8403-096, FREE SHIPPING | 99.9% |
![]() | $235.90 | Condition is New, Bard Carbon Dioxide Transmitter Controller - CO2 Sensor With Relay S8403-096, FREE SHIPPING | 100.0% |
![]() | $1016.35 | Condition is New, Bard HVAC 8403-096BX CO2 SENSOR W/RELAY, FREE SHIPPING | 99.7% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $149.99 | Condition is New – Open box, Bard Carbon Dioxide Transmitter Controller - CO2 Sensor With Relay S8403-096, FREE SHIPPING | 99.9% |

The Bard CO2 Transmitter Controller S8403-096 is an essential component of any monitoring system designed to keep track of carbon dioxide (CO2) levels in various environments. This controller is engineered to provide reliable and accurate CO2 measurements, ensuring the safety and comfort of occupants in industrial facilities, laboratories, or other enclosed spaces.
The S8403-096 CO2 Transmitter Controller comes equipped with a high-performance CO2 sensor. This sensor utilizes a proven electrochemical cell technology that measures the concentration of CO2 in the surrounding air with great precision. The sensor's wide measurement range (0-5,000 ppm) makes it suitable for various applications, including industrial processes, HVAC systems, and laboratory environments.
The controller features a built-in 4-20 mA output signal that can be easily integrated into monitoring systems or building automation networks. This signal provides real-time CO2 data, allowing for efficient and proactive management of indoor air quality. Additionally, the controller offers a configurable alarm function that can be set to trigger an alarm when CO2 levels exceed a specified threshold.
The S8403-096 CO2 Transmitter Controller is designed with durability in mind. The sensor housing is made of robust materials to ensure long-lasting performance in harsh industrial environments. The controller's compact size (4.7" x 3.5" x 1.1") makes it easy to install and integrate into various monitoring systems.
The controller also includes a relay output that can be used to control ventilation systems or other equipment based on CO2 levels. This feature provides an additional layer of control and ensures that CO2 levels are maintained within acceptable ranges.
In summary, the Bard S8403-096 CO2 Transmitter Controller is a versatile and reliable solution for monitoring and managing CO2 levels in various applications. Its high-performance CO2 sensor, configurable alarm function, 4-20 mA output signal, and relay output make it a valuable asset for industrial facilities, laboratories, and other environments where indoor air quality is essential.
The Bard CO2 Transmitter Controller Model S8403-096 is a carbon dioxide sensor and relay designed for use in HVAC systems to monitor and control CO2 levels. Here are some pros and cons that may help you make an informed decision about purchasing this product:
Pros:1. Accurate CO2 measurement: The sensor is designed to provide reliable and accurate CO2 measurements, ensuring optimal indoor air quality.
2. Integration with HVAC systems: The transmitter controller can be easily integrated with HVAC systems to control ventilation and air conditioning based on CO2 levels.
3. Remote monitoring: The device allows for remote monitoring of CO2 levels, making it ideal for large buildings or facilities where constant monitoring is necessary.
4. Alarm notifications: The controller comes with an alarm feature that can be set to alert when CO2 levels exceed a certain threshold.
5. Durable design: The device is designed to be robust and long-lasting, making it a good investment for businesses and institutions that require reliable air quality monitoring.
Cons:1. Cost: The Bard CO2 Transmitter Controller Model S8403-096 is a premium product and may be more expensive than some other CO2 sensors and controllers on the market.
2. Installation: The installation process for this device may require some expertise, particularly for integrating it with existing HVAC systems.
3. Power requirements: The device requires a power source to operate and may require additional wiring and electrical work to set up.
4. Calibration: The CO2 sensor may require periodic calibration to ensure accurate readings, which can add to the overall cost and maintenance requirements.
In conclusion, the Bard CO2 Transmitter Controller Model S8403-096 is a high-quality product that offers accurate CO2 measurement, integration with HVAC systems, remote monitoring, and alarm notifications. However, it comes with a higher price tag and may require some installation expertise and periodic calibration. Ultimately, whether or not this product is right for you depends on your specific needs and budget. If you require reliable and accurate CO2 monitoring for a large building or facility, and have the budget for it, then this product is definitely worth considering. If you have more modest requirements or a smaller budget, there may be other CO2 sensors and controllers on the market that better suit your needs.
Details:
The Bard carbon dioxide transmitter controller is a reliable co2 sensor with relay, specifically model 8403-096. With the Bard brand reputation for quality and durability, this co2 sensor ensures precise monitoring automation improved indoor air efficiency in various industrial commercial settings. This product is designed for use in hvac and refrigeration systems to accurately measure control carbon dioxide levels.
specifications maxohvac:
- brand: Bard
- mpn: S8403-096
- model: 8403-096
- type: Co2 Sensor With Relay
offer maxohvac:
- sold #: 12
- availability: in stock
- started: january 23, 2026
- in stock #: 4
- best offers: true
- prices: $149.99–$1016.35
- item condition:
- New
- New – Open box
- options: ship-to-home
payments maxohvac:
- credit card: diners-club
- other
- wallet: paypal
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
returns maxohvac:
- policy: no returns
shipping maxohvac:
- service: usps priority mail
- carrier: usps
- transit: 5-11 days
- type: calculated
- class: expedited
seller maxohvac:
- city: desert hot springs, california
- # reviews: 305
- rating: 100.0%
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