carbon monoxide

For some people $129 may be a lot of money for a smoke alarm. But the new 'Nest Protect' is packed with technologies not usually included with your average smoke alarm. The device is the work of Nest Labs, a company that made its name a couple of ... years ago with an automatically adjusting thermostat capable of cutting energy bills by up to 20 per cent. The company's new smoke alarm features built-in WiFi. It automatically sends messages to your mobile phone when the batteries are beginning to run low and will also send an alert if it detects a fire -- meaning that if you are away from home you ... (view more)