Description
The Extech SD800 CO2/Humidity/Temperature Datalogger measures three important indicators of environmental health and occupant comfort. The SD800 features an LCD screen that will simultaneously display CO2, humidity and temperature readings and an included 2 GB SD memory card which stores data in Excel format for convenient analysis. The datalogger sampling time is adjustable, with sampling rates of 5, 10, 30, 60, 120, 300 or 600 samples per seconds as well as an automatic setting. The SD800 has a display update rate of approximately 1 seconds and weighs less than a single pound.
- Measures CO2, relative humidity and temperature
- Maintenance free dual wavelength NDIR (non-dispersive infrared) CO2 sensor
- Triple LCD simultaneously displays CO2, temperature and relative humidity
- Measurement ranges: CO2 from 0 to 4,000 ppm; temperature from 32 to 122 °F (0 to 50 °C); relative humidity from 10 to 90% RH
- Datalogger stores readings on the included 2 GB SD card in Excel format
- Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds or Auto
Warranty Information
The Extech SD800 CO2/Humidity/Temperature Datalogger has a 2-year limited warranty
Includes
- Extech SD800 CO2/Humidity/Temperature Datalogger
- 2 GB SD memory card
- Universal AC adapter
- Mounting bracket
- Six (6) AAA batteries
Product Specs
| Specification | Range | Resolution | Accuracy |
| CO2 | ≤1000 ppm >1000 to ≤3000 ppm >3000 ppm |
1 ppm | ±40 ppm ±5% of reading ±250 ppm, typical |
| Temperature | 32 to 122 °F (0 to 50 °C) | 0.1 °F/°C | ±1.8 °F/0.8 °C |
| Relative Humidity | 10 to 70% RH 70 to 90% RH |
0.1% RH | ±4% RH ±(4% of reading + 1% RH) |
| Display | 60 x 50 mm (2.4 x 2.0 in) LCD | ||
| CO2 Response Time | <2 minutes to 63% of final reading typical | ||
| Memory Card | 2 GB SD memory card (included) | ||
| Datalogger Sampling Time | 5/10/30/60/120/300/600 seconds or Automatic | ||
| Temperature Compensation | Automatic | ||
| Display Update Rate | Approximately 1 second | ||
| Data Output | RS 232 | ||
| Operating Temperature | 0 to 50 °C (32 to 122 °F) | ||
| Operating Humidity | Less than 90% RH | ||
| Power Supply | 9 V AC adapter Six (6) AAA (UM4) 1.5 V batteries for clock backup |
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| Weight | Meter: 240 g (8.5 oz) Probe 158 g (5.6 oz) |
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| Dimensions | Meter: 132 x 80 x 32 mm (5.2 x 3.1 x 1.3 in) Probe: 132 x 38 x 32 mm (5.2 x 1.5 x 1.3 in) |
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Shipping
Free Shipping
Returns
Our policy lasts 30 days. If 30 days have gone by since you received purchase, unfortunately we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.