does this work on steel doors

Hi friend, Yes, it can work on steel door as long as you install it firmly. Thanks.

What tools do i need to install the bell on door

No tools. Adhesive is on the back of the door bell. Just be sure you set it exactly where you want it. I cleaned the metal door a few inches above the handle with rubbing alcohol first. Mine has stuck really good. The tone part just plugs into the wall socket. It isn't difficult at all.

Brand	KERUI
Color	White
Power Source	Battery Powered
Item Weight	5 Ounces
Maximum Range	8 Meters
Mounting Type	Wall Mount
Battery Description	AAA
Compatible Devices	Fan, Laptop, Light, Smartphone, Tablet
Product Dimensions	3.15"D x 1.97"W x 2.95"H
Operating Temperature	77 Degrees Fahrenheit
Manufacturer	KERUI
UPC	607467345516
Part Number	KERUI20170802
Item Weight	5 ounces
Is Discontinued By Manufacturer	No
Style	Motion Sensor Doorbell with Adapter
Batteries Included?	No
Batteries Required?	No
Description Pile	AAA

M5 Wireless Doorbell Infrared Door Chime for Business Entering, Motion Sensor 32 Songs Welcome Alarm for Home Shop Business Store, with Power Supply

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