VOC Tag
The VOC Tag is a gas sensor for measuring volatile organic compounds (VOC) concentration. This is useful for indoor air quality monitoring applications. This module uses a metal-oxide multi pixel sensor SGP30 from Sensirion measuring total VOC level.
| Category: | Tags |
|---|---|
| Warranty: | 3 years |
VOC (Volatile Organic Compounds) sensor is a great technology for indoor air quality measurement applications. Elevated VOC levels can have a negative impact on well being, comfort, and cognitive abilities. Typical VOC sources are cosmetics, detergents containing alcohols or aldehydes, carpets, and flooring, paints, human and animal occupants. Measuring Total VOC (TVOC) level can help to increase the efficiency of ventilation and air purification, and increases awareness of VOC sources and indoor air pollution.
Features
- VOC multi-pixel gas sensor SGP30 (Sensirion)
- Suitable for indoor air quality monitoring applications
- Measurement range of TVOC: 0 to 60 000 ppb (part per billion)
- Typical Measurement accuracy of ethanol signals: 15 % of reading
- Typical Measurement accuracy of H₂ signals: 10 % of reading
- Communication using I²C digital bus interface
- Operating current: 48 mA (power supply using DC adapter is recommended)
- Operating voltage range: 1.9 V to 6.5 V (LDO equipped module)
- Operating temperature range: -45 to 85 °C
- Mechanical dimensions: 16 x 16 mm
| Level | TVOC (ppb) | Hygienic Rating | Recommendation | Exposure Limit |
|---|---|---|---|---|
| 5 - Unhealthy | 2200 - 5500 | Situation not acceptable | Use only if unavoidable / Intense ventilation necessary | hours |
| 4 - Poor | 660 - 2200 | Major objections | Intensified ventilation / airing necessary, search for sources | < 1 month |
| 3 - Moderate | 220 - 660 | Some objections | Intensified ventilation / airing recommended, search for sources | < 12 months |
| 2 - Good | 65 - 220 | No relevant objections | Ventilation / airing recommended | no limit |
| 1 - Excellent | 0 - 65 | No objections | Target value | no limit |
Resources
The Core Module is the key element of every BigClown node. It has a 32-bit ARM microcontroller with 192 kB of flash memory and 20 kB of RAM. Besides the integrated...
The Tag Module makes it possible to connect up to six BigClow tags . There are two independent I²C buses (I2C0 and I2C1) - one on each side. This allows to connect two tags...
The Climate Module integrates 4 environmental sensors - temperature , humidity , light intensity and atmospheric pressure . All sensors are digital, feature low-power...
