CO2 Transmitters

Model 7721 Super large LCD display CO2 value and temperature simultaneously Designed with NDIR (Non-Dispersive Infrared) wave guide technology ABC (Automatic Background Calibration) preset on for long time drift compensation Display 8 hrs TWA value (time-weighted average) or 15 minutes STEL value (short-term exposure limit) Easy to manually calibrate CO2 at fresh air Digital wall mountable / desktop type Warning Carbon Dioxide level Alarm output drive relay to control system Specification Model 7721 CO2 Range 0~9999 ppm(2001~9999 ppm out of scale range) CO2 Resolution 1 ppm CO2 Accuracy ±50 ppm ±5% of reading (0~2000 ppm),other range are not specified CO2 Response Time ＜30 Seconds (90% step change) CO2 Warm-up Time 30 Seconds Air Temperature Range -10~60℃, 14~140℉ Air Temperature Resolution 0.1℃, 0.1℉ Air Temperature Accuracy ±0.6℃, ±0.9℉ Air Temperature Response Time ＜2 mins (90% step change) LCD Size 65(L) * 50(W) mm Meter Size 130(L) * 85(W) * 60(H) mm Operating Temperature 0~50℃ Operating RH% 0~95% RH (avoid condensation) Storage Temperature -20~50℃ Storage RH% 0~90% RH (avoid condensation) Power Supply 12V DC Adaptor Battery life ＜50 mA (average), ＜310 mA (peak) Weight ~200g Standard Package Meter, Manual, Paper Box,12V USA Type Adaptor Download Product Sheet PDF

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The transmitters of the HD37… series are used in air quality control by measuring CO2 (Carbon Dioxide) in the ventilation systems. This allows you to vary the number of air change per hour according to ASHRAE and IMC norms. The purpose is twofold: to have a good air quality in the presence of people and to save energy, increasing or decreasing parts of air per hour, depending on the air quality set. The use is for environments where there is overcrowding of people, discontinuous crowding, cafeterias, auditoriums, schools, hospitals, greenhouses, livestock breeding, etc. Model HD377B-TV.1 is a vertically mounted transmitter with a range of 0-5000ppm CO2 and 0…+50 °C Temperature range. Output 4-20mA Download Product PDF  

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Senseair K30 is a flexible product with two analogue outputs and two digital outputs that can be configured with SADK hardware SADK (Senseair Development Kit and UIP or other custom software to meet your requirement. The platform can be customised for a variety of sensing and control applications. This platform is designed to be an OEM module for built-in applications in a host apparatus.  Specification Product Number 030-8-0006 Measurement range CO2 0 to 5,000 ppm / 0 to 3%vol Accuracy ±30 ppm ±3% of reading Dimensions 51 mm x 58 mm x 12 mm Operation temperature range 0 to 50 °C Power supply 4.5 to 14.0 V DC Communication Uart ( Modbus) Outputs   OUT 1 linear output 0 to 4 V DC = 0 to 2,000 ppm OUT 2 linear output 1 to 5 V DC = 0 to 2,000 ppm OUT 3 digital output 700/800 ppm OUT 4 digital output 900/1,000 ppm

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The Senseair eSENSE is a simple, low-cost, state-of-the-art, infrared, maintenance-free carbon dioxide transmitter for installation in the climate zone or in the ventilation duct. eSENSE helps you save money by decreasing your energy consumption while creating a healthier indoor climate. eSENSE measures the carbon dioxide concentration in the ambient air up to 2,000 ppm CO2 and transforms the data into an analogue output.  eSENSE is an extremely cost-optimised sensor solution. By controlling the ventilation based on actual demand, it helps you decrease energy consumption but still maintain a healthy indoor climate in both residential and commercial buildings. Specification Measured gas: Carbon dioxide (CO2) Operating Principle:  Non-dispersive infrared (NDIR) Measurement range 0─2000ppm OUT1: 0─10V for 0─2000ppm ±2% of reading ±20mV OUT2: 2─10V for 0─2000ppm ±2% of reading ±20mV Accuracy: ±30ppm ±3% of reading Dimensions:  (H x W x D) 100 x 80 x 28mm  Life Expectancy >15years Operation temperature range 0─50°C Operation humidity range 0─95%RH (non-condensing) Power supply 24VAC/DC Power consumption <1W average Communication UART Display: No  Download Product PDF

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The Senseair eSENSE is a simple, low-cost, state-of-the-art, infrared, maintenance-free carbon dioxide transmitter for installation in the climate zone or in the ventilation duct. eSENSE helps you save money by decreasing your energy consumption while creating a healthier indoor climate. eSENSE measures the carbon dioxide concentration in the ambient air up to 5,000 ppm CO2 and transforms the data into an analogue output.  eSENSE is an extremely cost-optimised sensor solution. By controlling the ventilation based on actual demand, it helps you decrease energy consumption but still maintain a healthy indoor climate in both residential and commercial buildings. Specification Measured gas: Carbon dioxide (CO2) Operating Principle:  Non-dispersive infrared (NDIR) Measurement range 0─5000ppm OUT1: 0─10V for 0─5000ppm ±2% of reading ±20mV OUT2: 2─10V for 0─5000ppm ±2% of reading ±20mV Accuracy: ±30ppm ±3% of reading Dimensions:  (H x W x D) 100 x 80 x 28mm  Life Expectancy >15years Operation temperature range 0─50°C Operation humidity range 0─95%RH (non-condensing) Power supply 24VAC/DC Power consumption <1W average Communication UART Display: No  Download Product PDF

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tSENSE is an advanced and versatile 3-in-1 transmitter designed for installation in the air-conditioned zone. It measures CO2 concentration, temperature, and humidity in the ambient air accurately without the need for additional compensation ─ true read. The data transmits to a BMS system or a stand-alone controller using industry standard output signals and communication protocols. tSENSE combines all the necessary elements for effective climate control in commercial office buildings, hospitals, hotels, schools, and other facilities. Using CO2 monitoring for demand control ventilation (DCV) allows a healthy, comfortable, and cost-effective environment for the occupants. It is flexible in design with temperature control and a combination of humidity control optional. Though suitable for use in many different energy-efficient ventilation strategies, SenseAir® welcomes any discussions for specific needs. Complies with ASHRAE standard 189.1 (±50ppm @ 1,000ppm of measured CO2 value). Download Product PDF

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