Product Name	NDIR Livestock CO2 Transmitter
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Product Overview	The NDIR Livestock CO2 Transmitter is designed for continuous carbon dioxide concentration monitoring in livestock buildings, poultry houses, pig barns, cattle facilities, greenhouses, and other indoor agricultural environments. The transmitter uses dual-wavelength Non-Dispersive Infrared technology to provide stable and reliable CO2 measurement. It is available with 0-2000 ppm or 0-5000 ppm measuring ranges and provides a standard 4-20mA analog output for connection to environmental controllers, data loggers, monitoring panels, and building automation systems. Its compact indoor housing, low power consumption, long-term stability, and straightforward electrical interface make it suitable for integration into commercial livestock ventilation and environmental monitoring projects.
Key Features	Dual-wavelength NDIR sensing technology for reliable carbon dioxide measurement. Available measurement ranges of 0-2000 ppm and 0-5000 ppm. 4-20mA analog output for connection to controllers and data acquisition systems. Long-term measurement stability suitable for continuous indoor monitoring. Compact dimensions and low unit weight simplify installation. Low power consumption for continuous operation. Reverse-polarity and transient protection support electrical reliability. Suitable for livestock holdings, greenhouses, agricultural buildings, and indoor air quality systems. CE-compliant reference design.
Structural Components	The transmitter typically consists of a dual-wavelength infrared CO2 sensing module, signal-processing electronics, gas inlet, calibration control, status indicator, power and signal terminals, protective ABS enclosure, stainless steel fastening components, and cable connection interface. The compact enclosure protects the electronics while allowing ambient air to reach the sensing chamber. Electrical terminals provide power input and 4-20mA signal output for connection to compatible livestock environmental control equipment.
Working Principle / Structural Principle	The transmitter uses Non-Dispersive Infrared measurement technology. Carbon dioxide molecules absorb infrared energy at specific wavelengths. The sensor measures this absorption and converts it into a proportional CO2 concentration value. A dual-wavelength optical system provides a measurement channel and reference channel, helping improve long-term stability and compensate for changes in the optical path. Internal electronics process the measurement and convert the CO2 concentration into a 4-20mA output signal. The signal can then be transmitted to a livestock-house environmental controller, data logger, monitoring system, or building management system for display, recording, alarm management, or ventilation control.
Technical Specifications	Product Type NDIR carbon dioxide transmitter Measurement Principle Dual-wavelength Non-Dispersive Infrared technology Measurement Range 0-2000 ppm or 0-5000 ppm Accuracy ±(20 ppm + 2% of measured value) Response Time Less than 120 seconds Warm-Up Time Less than 15 seconds Power Supply 12-30 VDC Power Consumption Less than 2 W at 24 VDC Signal Output 4-20mA, load resistance less than 500 ohm Operating Temperature -25°C to +60°C Humidity 0-100% RH, non-condensing Long-Term Stability 5% of range over 5 years Electronic Protection IP21 Housing Material ABS with stainless steel fastening components Reference Weight Approximately 120 g Cable Options 5 m, 10 m, or custom length available according to project requirements
Applications	Commercial pig houses and swine breeding facilities. Broiler, layer, and breeder poultry houses. Cattle and calf housing buildings. Livestock ventilation control systems. Animal-house environmental monitoring systems. Greenhouses and controlled agricultural buildings. Livestock engineering and steel structure farm projects. Data logging and centralized environmental control systems. Indoor agricultural air quality monitoring.
Customization Options	SHEWUYOU can configure CO2 monitoring solutions according to livestock species, building dimensions, ventilation design, control system architecture, and project monitoring requirements. Available options may include 0-2000 ppm or 0-5000 ppm measurement ranges, different cable lengths, mounting accessories, data loggers, environmental controllers, alarm systems, centralized monitoring panels, and compatible farm automation equipment. System configuration can be designed according to local climate and farm conditions. Special cable lengths and supporting control equipment are available upon request.
Installation & Maintenance	Install the transmitter at a representative location inside the livestock building where air can circulate freely around the sensor. Avoid mounting directly beside heaters, exhaust openings, fresh-air inlets, water spray systems, or other locations that could produce unrepresentative readings. Connect the transmitter to a suitable 12-30 VDC power supply and compatible 4-20mA input according to the wiring diagram. Cable routing should be protected from mechanical damage, moisture accumulation, and interference from high-power electrical equipment. Inspect the housing, gas inlet, wiring, and signal output periodically. Keep the gas inlet free from excessive dust and contamination. Calibration and verification intervals should be established according to the livestock project's monitoring requirements.
Project Cases	The NDIR Livestock CO2 Transmitter can be integrated into complete livestock environmental control projects. Typical systems combine CO2 transmitters with temperature sensors, humidity sensors, ammonia sensors, ventilation controllers, exhaust fans, air inlets, cooling systems, heating equipment, and centralized farm monitoring platforms. For large commercial farms, multiple transmitters can be installed in separate livestock houses or environmental zones. Measurement signals can be connected to local controllers or centralized data acquisition equipment to support environmental analysis and ventilation management.
Product FAQ	Q: What measurement technology does the transmitter use? A: It uses dual-wavelength Non-Dispersive Infrared technology for carbon dioxide measurement. Q: What CO2 ranges are available? A: Reference configurations are available with 0-2000 ppm and 0-5000 ppm measurement ranges. Q: What output signal does the transmitter provide? A: It provides a standard 4-20mA analog output for connection to compatible controllers and data loggers. Q: Can it be used in livestock buildings? A: Yes. The reference manufacturer specifically identifies livestock holdings among its intended indoor air quality applications. Q: Is the sensor suitable for outdoor installation? A: This configuration uses an IP21 indoor housing and is intended primarily for protected indoor installation. Q: Can cable length be customized? A: Yes. Standard 5 m and 10 m cables are available, and other cable lengths can be specified according to project requirements. Q: Can it be integrated with livestock ventilation equipment? A: Yes. The 4-20mA signal can be connected to compatible livestock environmental controllers, monitoring panels, or data acquisition systems.
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