Table 1.
Manufacturer specifications for the Foobot, Speck, AirBeam, and pDR 1500.
| Technical data | Foobot | Speck | AirBeam | pDR |
|---|---|---|---|---|
| Integrated OEM sensor | Sharp GP2Y1010AU0F | Syhitech DSM501A | Shinyei PPD60PV-T2 | NA |
| Cost ($) | 200 | 200 | 250 | 6,000 |
| Concentration range (μg/m3) | 0–1300 | 0–640 | 0–400 | 0.001–400,000 |
| Detects number concentration | No | Yes | Yes | No |
| Detectable size range (μm) | 0.3–2.5 | 0.5–3.0 | NA | 1–10 |
| Sampling frequency | 5 minutes | 5 second – 4 minutes | 1 second | 1 second |
| Internal fan | No | Yes | Yes | - |
| Additional air quality measurements | tVOCs, CO2, Temperature and relative humidity | Temperature | Temperature and relative humidity | Temperature and relative humidity |
| Remote storage | Yes | Yes | Yes | No |
| Internal storage | No | Yes | No | Yes |
| Internal rechargeable battery | No | No | Yes | Yes (batteries) |
| Dimensions in meters [LxW/DxH] | 0.17×0.07 [HxD] | 0.114×0.035×0.037 [LxHxW] | 0.1×0.095×0.04 [LxHxW] | 0.181×0.143×0.084 (HxLxW) |
| Weight (kg) | 0.475 | 0.164 | 0.198 | 1200 |
| Wi-Fi connectivity | Yes | Yes | No | No |
| Visible output on sensor | No | Yes | No | Yes |