working principle

Features: quantitative sensitivity debugging, high sensitivity design, can detect oversize metal and sound and light alarm. Detection range: iron, aluminum, stainless steel, alloy and other metal timing function: relay pull-in delay release, time 1-10 seconds control output: relay contacts a pair of normally open, a pair of normally closed.
Installation method: for sensor installation, the amplitude of belt rack should be less than 0.5mm. When it is more than 0.5mm, the sensor bracket should be installed separately.
Note: when the power supply voltage is unstable, it should be equipped with a regulated power supply.