door sensor
Threshold crossing alert
A door sensor is a device that detects when a door opens or closes, typically consisting of two magnetic components—one mounted on the door frame, one on the door itself.
When the door moves, the magnetic contact breaks and triggers an alert.
Door sensors are standard components in home security systems and smart home setups: The door sensor notified me when someone entered the back door.
- motionChange in position
- motion detectorDevice sensing nearby movement
- alarmUrgent warning signal
- false alarmErroneous warning signal
- entryAccess or submission
entry point · security · security system · magnet · contact · trigger · chime · alert · wireless · threshold · frame · opening · open sesame · detection · smart · smart home · home · buzzer
- elevatorselevator, elevators, elevator shaft, lift shaft, counterweight
- Entry Securitysmart lock, deadbolt, keyless entry, electronic lock, keypad lock
- security alarmsburglar alarm, panic buttons, car alarm, fire alarm, control panel
- sensorsbiosensors, ammeter, pressure transducer, temperature probe, accelerometer
- hardwarehinge, lock, latch, screw, bolt
- safety equipmentlife jacket, safety glasses, lifeboat, smoke alarms, smoke alarm
door sensordoor lock
Device securing an entrance
smart lock · magnetic lock · deadbolt · door closer · door chain
door, sensor, doors, doored, doorway, doorways, doorman, doormen, doorstep