card key

Hotel room opener

A card key is a flat plastic card encoded to unlock doors, typically in hotels and office buildings.

The card may use a magnetic stripe, chip, or radio frequency to communicate with the lock.

I waved my card key at the sensor and the door clicked open.

Also called a key card.

Related

electronic lock · guest room · front desk · check in · room number · padlock · security · security system · authentication · access control · alarm system · deadbolt · hotel · hotel room · carte · digital signature · surveillance camera · RFID

Categories
Opposites
access mechanism type

card keybrass key

Metal lock-opening device

skeleton key · padlock key · combination lock · house key · latch key

authentication technology

card keybiometric scanner

Sensor reading physical traits

fingerprint scanner · retinal scan · facial recognition · password · voice recognition

Family

card, key, cards, carded, carding, keys, keyed, keying, keyless

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G