Detailed description:: Product Name: Mini Carbon Monoxide Detector Material: ABS Size: 134.5×32.5×16mm Display: 1.1-inch LCD backlight Detection range: 0-999ppm Battery: 2×1.5V AAA battery (not included) Response time: ≤500ppm: about 5 seconds ＞500ppm: about 2 seconds Alarm mode: analog bar, red backlight and buzzer Color (Optional): Black, White Notes: 1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 14.Please allow slight dimension difference due to manual measurement. MaterialMadeofchromiumvanadiumsteel,whichcanmakeitpractical,durable,anti-rustandshock-resistant. FeaturesDesignedfor1/4inch(6.35mm)hexshankbits,accessoriessetforpowerdrillsandimpactdrivers. Widely Used Suitable for universal 1/4" hex shank drill and drill bit, suitable for drill, screwdriver, batch head and other to transfer, extend all kinds of screwdriver bits, screwdriver head conversion uses. NiceDesignStrongmagnetholdsbitssecurely,andthemagnetislocatedinsidethechrometube. PackageIncludeContains10pcsmagneticdrillbitextensionfor1/4"hexshank. MaterialMadeofchromiumvanadiumsteel,whichcanmakeitpractical,durable,anti-rustandshock-resistant. FeaturesDesignedfor1/4inch(6.35mm)hexshankbits,accessoriessetforpowerdrillsandimpactdrivers. Widely Used Suitable for universal 1/4" hex shank drill and drill bit, suitable for drill, screwdriver, batch head and other to transfer, extend all kinds of screwdriver bits, screwdriver head conversion uses. NiceDesignStrongmagnetholdsbitssecurely,andthemagnetislocatedinsidethechrometube.