enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. A23 battery - Wikipedia

   en.wikipedia.org/wiki/A23_battery

   An A23 battery is cylindrical and approximately two-thirds the length of an AAA battery, measuring 28.2 mm (1.11 in) long and 10.0 mm (0.39 in) in diameter, with a typical weight of 8 grams. An A23 battery is an 8- cell device with a nominal voltage of 12 V.

3. List of battery sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_battery_sizes

   Used in small RF devices such as key fob-style garage door openers, wireless doorbells, and keyless entry systems where only infrequent pulse current is used. Usually contains a stack of eight LR932 button cells shrink wrapped together. A27: GP27A MN27 L828 27A V27A A27BP G27A: 8LR732 (alkaline) 22 (alkaline) 12: 8.0 × 28.2

4. A27 battery - Wikipedia

   en.wikipedia.org/wiki/A27_battery

   A single A27 battery Two A27 batteries, with an A23 and an AA battery for comparison, and a remote control using this type of battery. The A27 battery (also known as GP27A, MN27, L828, 27A, V27A, [1] A27BP, [2] G27A) is a dry cell-type battery used in some small remote controls and some cigarette lighters.

5. N battery - Wikipedia

   en.wikipedia.org/wiki/N_battery

   An N battery (or N cell) is a standard size of dry-cell battery. An N battery is cylindrical with electrical contacts on each end; the positive end has a bump on the top. The battery has a length of 30.2 mm (1.19 in) and a diameter of 12.0 mm (0.47 in), and is approximately three-fifths the length of a AA battery.

6. Garage door opener - Wikipedia

   en.wikipedia.org/wiki/Garage_door_opener

   The electric overhead garage door opener was invented by C.G. Johnson in 1926 in Hartford City, Indiana. [1] Electric Garage Door openers did not become popular until Era Meter Company of Chicago offered one after World War II where the overhead garage door could be opened via a key pad located on a post at the end of the driveway or a switch inside the garage.

7. Rolling code - Wikipedia

   en.wikipedia.org/wiki/Rolling_code

   A rolling code (or sometimes called a hopping code) is used in keyless entry systems to prevent a simple form of replay attack, where an eavesdropper records the transmission and replays it at a later time to cause the receiver to 'unlock'. Such systems are typical in garage door openers and keyless car entry systems.