CO2-sensor
The air quality in homes and offices is an important factor that’s often neglected. As you breathe and exhale, the oxygen contained in air is converted into carbon dioxide (not carbon monoxide, which is highly poisonous). Although a too high CO2 level in the air is not dangerous, it does cause effects like fatigue and reduced concentration — just watch what happens during long meetings! The Elektor CO2 sensor allows carbon dioxide levels to be monitored in an easy way. In addition it supplies a warning at excessive levels, or switches on an air circulation system.
Energy Meters
January’s Elektor is all about energy savings and for that it’s useful to know just how much power all that electrical kit in your home or office is consuming. We do a survey of plug-in energy meters on the market today to see if the watts values they show are any good.
Versatile DC Power Meter
Lots of DC power supplies have no indication for the current or voltage at the output. Our compact add-on board overcomes this shortage using an LCD for the readout. On it you can see the I an V values as numbers or a bargraph, but that’s not all — the unit also does Ah and kWh measurements for you!
The January 2008 issue goes on sale on Thursday 20 December 2007 (UK distribution only).
UK mainland subscribers will receive the magazine between 15 and 18 December 2007.
Articoli divulgativi
Password dimenticata?
