High Tech Systems & Equipment Inc. - Systems & Equipment 
Description
Reed R9905-NIST Data Logging Indoor Air Quality Meter
Reed R9905-NIST Datasheet (PDF)
Measures carbon dioxide (CO2), temperature, humidity and automatically calculates time-weighted average (TWA) and short-term exposure Limit (STEL).
REED R9905 Offers
This data logging Indoor Air Quality (IAQ) Meter has the ability to record samples on internal memory and keep track of registered readings with a time and date stamp. The R9905 features a Nondispersive Infrared (NDIR) CO2 sensor for stable, accurate readings and the option to track live measurements via software.
Features
- Triple LCD display simultaneously monitors carbon dioxide (CO2), temperature and relative humidity
- Calculates time-weighted average (TWA) and short-term exposure limit (STEL)
- Low-drift NDIR CO2 sensor for stable and accurate readings
- Temperature and relative humidity measurements help determine thermal comfort
- Easy-to-read backlit LCD display
- User adjustable audible alarm
- Data hold, Max/Min and Average functions
- Record up to 32,000 datapoints and keep track with internal time and date stamp
- User selectable sampling rate from 1 to 60 mins
- Low battery indicator and auto shut-off
REED R9905 Specifications
| Temperature | |
| Measuring Range | -4 to 140°F (-20 to 60°C) |
| Accuracy | ±1.5°F (±0.8°C) |
| Resolution | 0.1°F/°C |
| Humidity | |
| Measuring Range | 0 to 100% RH |
| Accuracy | 10 to 90% RH: ±3% <10% & >90% RH: ±5% |
| Resolution | 0.1% RH |
| CO2 (Carbon Dioxide) | |
| Sensor Type | Nondispersive Infrared (NDIR) |
| Measuring Range | 0 to 30,000ppm |
| Accuracy | 0 to 5000ppm: ±(75ppm +3% rdg.) 5001 to 30,000ppm: ±(150ppm +5% rdg.) |
| Resolution | 1ppm |
| Warm-up Time | 20s |
| Sampling Rate | 2s |
| General Specifications | |
| Display | LCD |
| Backlit Display | Yes |
| Data Hold | Yes |
| Min, Max, Avg Functions | Yes |
| CO2 Short Term Exposure Limit (STEL) | Yes (15 mins) |
| CO2 Time Weighted Average (TWA) | Yes (8 hours) |
| Datalogging Capabilities | Yes |
| Real-Time Clock and Date Stamp | Yes |
| Selectable Sampling Rate | Yes (between 1s and 60m59s) |
| Internal Memory | Yes (32,000 datapoints) |
| Alarm | Yes (Low and High) |
| Auto Shut-off | Yes (adjustable) |
| Kick Stand | Yes |
| Low Battery Indicator | Yes |
| Power Supply | 9V battery |
| Battery Life | Approx. 10 hours (continuous use) |
| PC Connectivity | USB |
| Software OS Compatibility | Windows 7 / 8 / 10 |
| Product Certifications | CE |
| Operating Temperature | 32 to 122°F (0 to 50°C) |
| Storage Temperature | -4 to 140°F (-20 to 60°C) |
| Operating Humidity Range | 0 to 90% |
| Storage Humidity Range | 10 to 75% |
| Maximum Operating Altitude | 6561′ (2000m) |
| Dimensions | 11.2 x 2.6 x 1.5″ (284 x 65 x 39mm) |
| Weight | 10.7oz (304g) |
What’s included with the REED R9905
- Indoor Air Quality Meter
- USB Cable
- Hard Carrying Case
- Batteries
- Calibration Certificate
Ideal Applications for the REED R9905
- Environmental monitoring in buildings, schools, hospitals and factories
- Verify HVAC/R system installation and system performance
- Manufacturing processes where high CO2 concentrations must be measured, such as fire extinguishers, wine, soda and sugar industries
