detector
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detector
A technical device or sensor constructed to detect and indicate the presence of certain substances, radiation, signals, or objects.
Der Rauchmelder an der Decke ist ein wichtiger Detektor für den Brandschutz.
The smoke alarm on the ceiling is an important detector for fire safety.
'Detektor' (detector) belongs to the word family of the verb 'detektieren' (to detect), which means 'entdecken' (to discover) or 'aufspüren' (to track down). So a detector is the device that detects something.
Die Polizei konnte mit einem speziellen Gerät Drogen im Auto detektieren.
The police were able to detect drugs in the car with a special device.
'Detektor' (detector) is often the second part of a compound noun. The first part describes what the detector finds, for example 'Rauchdetektor' (smoke detector), 'Metalldetektor' (metal detector), or 'Lügendetektor' (lie detector).
Am Flughafen muss jeder durch einen Metalldetektor gehen.
At the airport, everyone has to go through a metal detector.
When 'Detektor' (detector) stands alone, the preposition 'für' (for) and the accusative are often used to explain what it detects. The structure is: 'ein Detektor für etwas' (a detector for something).
Dieses Gerät ist ein hochempfindlicher Detektor für giftige Gase.
This device is a highly sensitive detector for toxic gases.
gazette / indicator / complainant
Both words can refer to devices that display a state. An „Anzeiger“ (indicator) usually shows a specific value or state, while a „Detektor“ (detector) specifically detects and indicates the presence of a substance, signal, or object. „Anzeiger“ is therefore used for a measurement display, and „Detektor“ for detection.
Der Detektor erkennt Rauch im Flur und zeigt die Gefahr an.
The detector detects smoke in the hallway and indicates the danger.
Am Tank zeigt der Anzeiger den aktuellen Füllstand an.
The indicator on the tank shows the current fill level.
