which co2 control sensor for classroom relay

Room CO2 / Temperature and Humidity Sensor

Room CO2/Temperature/Humidity, 3 X 0-10V, 0-2000ppm, 0-50°C, ±3RH with LCD The sensor (CO2 / T / H) is designed to measure air quality, temperature and humidity in room and areas. The air quality is measured based on CO2 levels. The air quality sensor output can be active or passive. Optional display is available. with 3 LED with LCD Room Sensor

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C7232A1016 Honeywell CO2 Sensor-NECC

NOTE: Product pictures shown represent the general type of device listed. The model you select might not exactly match the photo. Description. Attachments. C7232A1016 CO2 SENSOR, WALL MOUNT, NO DISPLAY 1 MOD 1 RELAY OUTPUT WALL MOUNT CO2 SENSOR,W/O DISPLAY, 0/2-10VDC OR 0/4-20MA OUTPUT. Guidebook 50 (Guidebook_, 77 Kb) [ Download ]

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Carbon Dioxide (CO2) Monitor and Controller - F2000IAQ-CO2 ...

F2000IAQ-CO2 monitor/controller is used to monitoring and control room CO2 level, as well as room temperature and humidity, provide one or two or three 0~10VDC analog outputs and up to three dry contact outputs . F2000IAQ-CO2 can be as a programmable logical controller to control CO2 level, temperature or humidity, and also as a transmitter DDC/PLC controller or other automation systems. It ...

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62-0353—01 - C7262A Sensor and Controller

to control the amount of fresh outdoor air supplied to maintain ... CO2 Analog Output, CO2 OUT2: CO2 Analog Output, CO2 RELAY NO RELAY NO Normally Open potential free relay contacts SW1a SW2a OUT1 & OUT2 (ppm) Relayb (ppm) On On 500 to 1500 1200 On Off 500 to 2000 1200 Off On 0 to 1000 1000 Offc Offc 0 to 2000 800 24V COMMON FOR OUT1 AND OUT2 V+ 24V TEMP TEMP OUT1: CO2 OUT2: CO2 RELAY …

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Sensor CO2 1W-UNI: Combined Temperature, Relative Humidity ...

Sensor CO2 1W-UNI is a combined Temperature (-0 to +50 °C), Relative Humidity (RH 0-95%) and CO2 (300 - 40000 ppm) sensor in one box for the indoor environment. Can be connected via RJ11 interface (1-Wire UNI bus) with all HW group monitoring devices. Housed in a small elegant plastic box, this sensor can be mounted on a wall or a ceiling or placed on a desk. It is small and lightweight so it ...

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HONEYWELL Carbon Dioxide Sensors and CO2 Controllers. Wall ...

Honeywell's C7232 Sensor and Controller is a stand-alone Carbon Dioxide (CO2) Sensor used in determining ventilation necessity with HVAC controllers. The C7232 measures the CO2 concentration in the ventilated space or duct. It is used in ventilation and air conditioning systems to control the amount of fresh outdoor air supplied to maintain acceptable levels of CO2 in the space.

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CO2 & Temperature Sensor - SE Controls - PDF Catalogs ...

Creating a Healthier and Safer Environment CONTROLS CO2 & Temperature Sensor Features: The CO2 & Temperature Sensor is used to monitor room CO2 level, as well as room temperature and humidity. It provides one on/off relay output to control a ventilator with four CO2 levels preset and features both an audible alarm and a three colour backlit switching alarm display.

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CO2 Duct Probe with Relay Module -

The CO2 Duct Probe with Relay Module is for applications where On/Off ventilation or fan control is required to provide fresh air. This model includes a relay output module that plugs into the main PCB offering a 30 V, Class 2 output with configurable On and Off trip points. Default On is 1,000 ppm, and default Off is 950 ppm.

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Carbon Dioxide (CO2) Ventilation Controller - G01-CO2-B360D

• More than 10 years lifetime of CO2 sensor. • Three-color (green/yellow/red) LCD backlit changes automatically to indicate ventilation levels based on CO2 measurements: optimal/moderate/poor. • Provide 2 x relay dry contact passive outputs to control 2 stages ventilation or two fans based on CO2 setpoints. • CO2 setpoints can be preset by DIP switches easily. • Specially design an ...

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CO2 Sensor Carbon Dioxide Transmitter – InHand Networks

Carbon dioxide sensor (CO2 sensor) for monitoring air quality. The carbon dioxide transmitter (CO2 sensor) response is rapid and sensitive with infrared verification technology for CO2 concentration measurement. This carbon dioxide sensor with reliable NDIR technology innovation and excellent quality control, adopts an ABS waterproof shell. It can not only filter the humidity in the environment, but also …

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CO2 Duct Probe with Relay Module - Johnson Controls

Download Specs. The CO2 Duct Probe with Relay Module is for applications where On/Off ventilation or fan control is required to provide fresh air. This model includes a relay output module that plugs into the main PCB offering a 30 V, Class 2 output with configurable On and Off trip points. Default On is 1,000 ppm, and default Off is 950 ppm.

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Carbon monoxide detector - CO Sensor | FIBARO

Each sensor is subject to continuous control, which covers routine product testing and the evaluation of manufacturing quality control processes. Detailed information and measurement log. Unique measurement precision is given exceptional form. The concentration of carbon monoxide is presented in a graph and the measurement log saved in the system's memory. Healthy. Carbon monoxide was not ...

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ADM-APN017-EN (10/05): CO2-based demand-controlled ...

CO2 sensor, most designers use either a one-time reading of the outdoor CO2 concentration at the building site or a conservative value from historical readings. This simplifies control, * M. Schell, S. Turner, and Shim, “Application of CO2-based demand-controlled ventilation using ASHRAE Standard 62: Optimizing energy

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CO2 Sensor Carbon Dioxide Measurement|Cubic Sensor

CM1106S-W is a single beam NDIR CO2 sensor module, based on non-dispersive infrared (NDIR) technology, which can detect CO2 concentration of indoor air. With high accuracy, high stability, small size, it is widely used for ventilation system, air purifier, air conditioner, HVAC transmitter, IAQ monitor, etc. Learn more. Super Low Power CO2 Sensor CM1106SL-N. CM1106SL-N is super low power ...

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CO2 Control In School Classrooms - sensors for commercial ...

Thousands of AirTest CO2 sensors have been installation in school districts throughout the US and Canada. AirTest is known for its zero maintenance, self-calibrating sensor. If you are involved in a school project and would like to talk to another district or contractor who has used AirTest CO2 in their project please contact AirTest at 604 517-3888 to for references. Here is a link to a short video that describes how Siemens in Seattle selected AirTest …

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Carbon Monoxide (CO) Gas Detector | Ventilation Control ...

Carbon Monoxide (CO) Detectors are used in applications such as underground garages, tunnels, go-kart race courses, engine repair shops, loading bays, engine test benches, shelters, etc.. Carbon Monoxide (CO) Detectors are used to warn when the quantity of harmful gases reaches an unhealthy level. Carbon Monoxide (CO) Detectors are used to ensure that the management of ventilation is …

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IAQ Sensors - Honeywell

Used for demand control ventilation (DVC) to control the amount of fresh outdoor air supplied to a space for cooling and maintaining acceptable levels of CO2. Additionally, ventilation via CO2 sensors can help minimize energy costs due to over-ventilation. Honeywell's self-calibrating and factory certified CO2 sensors ensure accuracy and compliance with CA Title 24, §(d)3 and 4. ALL - IN ...

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CO2 Sensor Carbon Dioxide Transmitter – InHand Networks

The carbon dioxide transmitter (CO2 sensor) response is rapid and sensitive with infrared verification technology for CO2 concentration measurement. This carbon dioxide sensor with reliable NDIR technology innovation and excellent quality control, adopts an ABS waterproof shell. It can not only filter the humidity in the environment, but also ensure the normal circulation of gas. In severe ...

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How does an NDIR CO2 Sensor Work? |

Today's newest generation of CO2 sensors has even more optimized waveguides, allowing a longer optical light path to be folded into an even smaller. 8 mm x 33 mm x 20 mm footprint. In addition to a smaller size, new mid-range infrared light-emitting diode (LED) light sources have been developed that allow NDIR sensors to operate at much lower power levels. Combined with a photo-diode light ...

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C7232A1008 Honeywell CO2 Sensor-NECC

Used for CO2 based ventilation control. Models available with LCD that provides sensor readings and status information. Non-Dispersion-Infrared (NDIR) technology used to measure carbon dioxide gas. Device provides voltage or current output based on CO2 levels. Models available with SPST relay output. Automatic Background Calibration (ABC) algorithm based on long-term evaluation reduces ...

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Room CO2 / Temperature and Humidity Sensor

Sensor Sensor Avoid laying the cable onthe CO2 sensor, because this may damage the device and influence the measuring values.! ±150ppm offset CO2 ±3K 0 ppm 1000 ppm 2000 ppm Offset Temperature CO2 set point for relay P3 P3 P3 0 2 P1 P2 P3 Mode Switch P1: P2: P3: Adjustment CO2 setpoint (mode switch position 2) Room CO2 / Temperature and ...

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