REED SD-9901 Indoor Air Quality Meter Datalogger. Features: No extra software needed, just plug the SD card into the computer and it downloads directly to EXCEL Simultaneously records data from three probes Meter can switch to a Manual Datalogging Measures CO2, CO, O2, Humidity, and Temperature Non-dispersive infrared CO2 sensor Galvanic cell CO and O2 sensors Precision capacitance Humidity sensor Real time SD memory card datalogger with a built-in clock and calendar Sampling time set from 2 seconds to 8 hours Easy to read LCD with backlight Auto power off or manual power off Data hold, record max. and min. reading Alarm setting with beeper High accuracy microcomputer circuit Power by UM3/AA (1.5 V) x 6 batteries USB/RS232 Computer interface Separated probe for easy measurements of multiple environments Applications Ideal for the following applications: Monitors air quality in schools, office buildings, greenhouses, factories, hotels, hospitals, transportation lines and anywhere that high levels of carbon dioxide are generated. REED SD-9901 Specifications CO2 Sensor Non-dispersive infrared Range 0 to 4,000 ppm Resolution 1 ppm Accuracy ±40 ppm (<1,000 ppm), ±5% (>1,000 ppm) CO Sensor Galvanic cell Range 0 to 1,000 ppm Resolution 1 ppm Accuracy ±(5% 2 ppm) O2 Sensor Galvanic cell Range 0 – 30% O2 Resolution 0.1% O2 Accuracy ±(1% 0.2% O2) Alarm Threshold <18.0% O2 Humidity Sensor Precision capacitive Range 5 to 95% RH Resolution 0.1% RH Accuracy >70%RH: ±(3% rdg 1%RH) <70%RH: ±3%RH Temperature Range 0 to 50.0°C (32 to 122.0°F) Dew Point Range -25.3 to 48.9°C (-13.5 to 120.1°F) Wet Bulb Range -21.6 to 50°C (-6.9 to 122.1°F) Resolution 0.1°C/°F General Specifications Accuracy ±0.8°C (±1.5°F) Power Supply 6 x 1.5V UM3/AA batteries Weight 350g Dimensions Main Unit: 177 x 68 x 45mm RH Probe: 197mm Long CO & O2 Probe: 150 x 38 x 38mm CO2 Probe: 190 x 38 x 28mm
