trigger level

noun
UK /ˈtrɪɡə ˌlevəl/
US /ˈtrɪɡər ˌlevəl/

The point where something starts to happen.

The alarm goes off when the water reaches the trigger level.


OTHER MEANINGS

2. In electronics, the voltage at which a circuit begins to respond.

Adjust the trigger level so the oscilloscope shows a steady wave.

3. In gaming, the height or point that causes an event to start.

Crossing the trigger level opens the secret door.

4. The amount of something needed before a rule or action applies.

Once sales hit the trigger level, the bonus is paid.