Nest has take carbon monoxide and smoke detection to a new level with a combination unit which tells you exactly what's going on, where it's going on and how much danger you're in. In addition to sounding the alarm, this interconnected detector tells you by voice what the problem is and where it’s located. It will even warn you when levels are rising, but haven’t yet reached a dangerous level. The alarm also connects to your Nest thermostat, turning off the gas to the furnace if there is an alarm and you can even monitor your home while away via smart phone. An color-change indicator for self tests, battery levels, and the low battery helps eliminate confusion.
First Alert recognizes children can be hard to awaken, so they’ve designed this alarm to wake even the soundest sleeper. This combination smoke and carbon monoxide detector operates off of battery power and includes a voice alarm, as well as an audio alarm, to tell you where the danger is and how severe it is. The unit has been designed to use low power, so that the two AA batteries powering it will last for up to ten years. Smoke detection is accomplished via photoelectric technology and CO detection is via electrochemical sensors.
Kidde Worry-Free Combination Smoke & Carbon Monoxide Alarm #i12010SC
Kidde offer this hard-wired CO2 detector with a built-in Lithium Ion battery backup which is guaranteed to last ten years. This will ensure that your alarm continues to work, even during long power outages. The smoke detection feature works by using an ionization chamber for low-smoke level detection. The alarm automatically adjusts its sensitivity, so that it can tell you exactly how severe the CO2 risk is as well as telling the difference between a true emergency and a false alarm. This unit also has a voice warning feature which uses a smart interconnect system, which allows networking of up to 24 Kidde devices.
This hard-wired unit just detects carbon monoxide and includes a sealed rechargeable battery, providing you years of reliable, trouble-free service. The digital display provides an accurate readout of the actual CO level and peak level button allows you to see the highest level ever recorded by the unit, since its installation. This unit can be interconnected with other Kidde units to protect your whole home. It also features a low-profile design which is ideal for mounting in the typical 2-gang electrical box.
Carbon monoxide isn't the only risk your family faces so First Alert has incorporated an explosive gas alarm into this carbon monoxide detector. In addition to detecting carbon monoxide, this unit can detect hazardous levels of natural, methane, and propane gases. The alarms digital display tells you exactly what type of gas has been detected, how much, as well as the devices battery level. This is a plug-in unit, which is designed for connection with any existing electrical outlet but a nine volt battery also provides backup power, in case of a power outage.