100V-240V Wall Mount Carbon Dioxide (CO2) Temperature and Humidity Indoor Air Quality Monitor ******           This CO2 Sensor & Controller (wall-mount) is designed for fast and accurate measurement of CO2 level, humidity, air temperature, dew point temperature and wet bulb. It monitors CO2 concentration level and can controls ventilation system such as air conditioning to operate only when its necessary without the need for occupant intervention. With CO2 Monitor & Controller you are ensured with a healthy workplace requiring minimum energy consumption while simultaneously maintaining Indoor Air Quality (IAQ). It can be set in 2 alarm limits: upper & lower limit. It has an audible & visual alarm to give warning when CO2 concentration exceeds the limit. Once CO2 level goes back to normal the alarm will automatically stop, but can be also be stop by pressing any key. It also has a built-in relay which can be connected to an Indoor Air Quality (IAQ) system to control the opening and closing of the system. In addition, it has PC Link that can send gathered data directly to your PC for on-line logging and data analysis via the optional RS-232 interface and software (not included in set). When the unit gets a high reading of CO2 and there is no ventilation system attached, the user will be notified via the beeping alarm and flashing LED light and will automatically stop once CO2 concentration goes back to its normal level or a key has been pressed. Poor indoor air quality in rooms can lead to fatigue, lack of concentration and illness (Sick Building Syndrome) due to high CO2 concentration. Areas of Application: Hospitals Offices Schools Theaters Indoor Sports Arenas High Rise Buildings Indoor Area Quality Commercial Buildings Residential Housing Public Buildings Demand Controlled Ventilation Clean Rooms.     Special Features Stable Non-Dispersive Infrared (NDIR) Sensor for CO2 detection Visible & Audible (80db) CO2 warning alarm when CO2 concentration exceeds the set limits Alarm Output Relay for ventilation control Simultaneous triple result, displaying CO2 level, temperature and humidity ABC (automatic Baseline Calibration) and manual CO2 calibration Factory pre-calibrated With calibration indicator and can be mounted on the wall or a desk  Statistics of weighted averages TWA (Time-Weighted Average) 8 HRS STEL (Short-term exposure limit) 15 Minutes PC Connect via optional RS232 Software interface (not included in set) It has triple LCD Display and programmable alarms and built-in Non-Dispersive InfraRed (NDIR)   sensor that provides long term stable monitoring Built-in relay that controls the ventilation system to automatically maintain the CO2 level that you set or specify Higher accuracy than desktop CO2 Monitor models Large Triple Function LCD Display with digital readout Long Time Drift Compensation Selectable °C and °F With Min/Max, Average Recall Continuous monitoring With CE Marking, passed the standards and had been approved by European Directives for health & safety  With 100V-240V power input and include power adaptor with UK / US/ EU / AU plug Specifications CO2 Range: 0~2000ppm ***** 2001~9999 (out of scale) Accuracy: ±50ppm ±5%rdg (0~2000) Resolution: 1ppm Pressure Dependence: +1.6% reading per kPa deviation from normal pressure, 100kPa Temperature Range: -10.0~60.0°C (14~140°F) Resolution: 0.1°C/°F Accuracy: ±0.6°C / ±0.9°F Humidity Range: 0.0~99.9% Resolution: 0.1% Accuracy: ±3% (10~90%) **±5% (others) Operating Condition: 0~50°C, 0~95%RH Storage Condition: -20~60°C, 0~99%RH Warm up: 30 seconds Power supply: 1A Output 12V AC Adaptor Voltage Input: 100-240V   Set Included: 1 x Wall-mount CO2 Monitor 1 x 12V Adaptor (available in US / UK / AU / EU plug) 1 x Instruction manual Standard packaging box OPTIONAL (not included in the set): RS232 CD software & cable If you add US$24.00 or GBP15.50 or AU$26.00 (per set) to your order, then you will get a set of CD (Software) and USB Cable in extra     Copyright © 2008. All rights reserved. Discount Instrument *