No Products in the Cart
The Youshiko CO-9400 tracks PM2.5 and PM10 particulate matter, the fine and coarse dust that standard weather stations don't measure, alongside indoor temperature, humidity and an MSF radio controlled clock. A wireless sensor with a high-precision laser scattering system takes the readings and sends them to the console.

The wireless PM2.5/PM10 sensor included with every unit
Particulate matter, PM10 and the smaller PM2.5, is small enough to reach deep into the lungs, and levels can be higher than expected in built-up areas or near busy roads. This monitor gives you an ongoing AQI reading and an alert if levels climb, so you know when it's worth keeping windows shut or airing a room out.

Rear view of the console
| Sensor | YC74, laser scattering PM2.5/PM10 sensor, included |
|---|---|
| Sensor range | Up to 150 m (450 ft) |
| Console power | 2 x AA (not included) |
| Console size | 90 x 103.5 x 34.5 mm (W x H x D), with stand |
| Sensor power | USB and/or 3 x AA 1.2V rechargeable batteries (included) |
| Sensor size | 82 x 120.5 x 41 mm (W x H x D) |

