An excellent product !,
This review is from: Kidde night hawk 0230/5DCO NHDCO Battery Premium Range Carbon Monoxide Alarm with Digital Display (DIY & Tools)
The unit I ordered arrived quite quickly in December thanks to Amazon. The instructions are very thorough, but need reading and re-reading a few times to fully appreciate set up, installation and monitoring day by day and sensible advice as to what to do if there are high levels of carbon monoxide Keep the instructions safely.
The Carbon monoxide alarm has a life of seven years before replacement is needed. I chose this more expensive model, the Kidde 900-0230 battery alarm, for its digital display screen, with push backlight, its self test facility and its two, led units, the flashing green led about every 30 seconds reassures all is well. The red one only flashes if carbon monoxide levels rise to an unsafe level. It is housed in an off white plastic casing and contains a loud alarm siren if dangerous levels arise. Once the battery is inserted and the instructions followed its quite straightforward and is operational in a few minutes.
The unit was easy to fit on a convenient wall at head height, but could be lifted off and used in portable mode around the house if required. Battery nearing its end of life is indicated by the unit.
I am pleased with this alarm and would by another Kidde replacement in due course.