The Hispec Interconnectable Carbon Monoxide Detectors are supplied in attractive bar coded colour packaging and benefit from having a Euroslot which allows them to be put on display for maximum impact. Each product is supplied with a unique ‘First Fix’ base. This enables the installer to complete the wiring before the plasterers and painters coat the surface without interfering with the detector’s circuitry.What you should know about ' CARBON MONOXIDE'Carbon monoxide, also known as "CO" by the chemical form, is considered to be a highly dangerous poisonous gas, because it is colourless, odourless or tasteless and very toxic. In general, biochemistry phenomena have shown that the presence of CO gas inhibits the blood's capacity to transport oxygen throughout the body, which can eventually lead to brain damage.Although many products of combustion can cause discomfort and adverse health effects, it is CO gas which presents the greatest threat to life.Carbon monoxide is produced by the incomplete combustion of fuels such as natural gas, propane, heating oil, coal, charcoal, petrol, or wood. The incomplete combustion of fuel can occur in any device which depends on burning for energy or heat such as boilers, room heaters, hot water heaters, stoves, grills, and in any petrol powered vehicle or engine (e.g. generator set, lawnmower).Features* Quick fix mounting bracket for easy installation.* Tamper resist feature.* Inter-connectable with up to 40 Hispec Carbon Monoxide / Smoke & Heat Alarms.* LED indicator for alarm and AC power.* Low-battery and battery missing warning indicator.* Self-test button.* Auto-reset when CO clears.* 230V With battery back up (Included)* Colour BoxBox Qty: 10