For smoke detectors and CO-Warner there are [...] a list of devices that do not comply with safety regulations. Since the devices are sold under different names, they are individually displayed (PDF file). As already eliminated a lot of the marketed devices. The egg 207 has the necessary certification. Stiftung Warentest has tested still no CO alarm, but the smoke detector from the company. EI Electronics was the test winner in the edition January 2013. The paper to form. I have the detector installed in the camper because I run a petrol air heater. The dense fortunately noisy detectors. But I could see the warning function test by the operation of my alcohol stove. Due to the low volume of the mobile home built in cooker close by burning a short time beyond the normal level CO concentration. The display shows the increase was shown later, the warning light was added and then the well audible beep. The tone let himself off and came after the airing again not - does not release you, the sound comes on again and can then no longer switch off. The display showed the sinking concentration. Now I sleep calmed with the heater switched. One more thing, the batteries can be replaced, other devices have partly non-replaceable batteries, which should cover the entire life of the appliance. The extensive instruction was in German.
