Use the Hall chip OH34N to convert the changed magnetic field signal to a digital level output. 

When the S pole magnetic field is triggered, the module will output a low level. 

As a non-contact switch, it is widely used in various position control, speed detection, flow detection, and product quantity detection on the production line.

Module input voltage 3.5V-5.5V

S pole magnetic field triggers low level output

Fast switching speed and wide operating frequency

Can be used as a contactless switch for position detection

It can be used in home appliance control boards, speed sensors, flow meters, counter safety

alarm devices, brushless DC motor control, etc.

The Hall chip OH34N is used to convert the changing magnetic field signal to a digital level output. 

The module will output a low level when the S pole magnetic field is triggered. 

As a non-contact switch, it is widely used in various position control,

speed detection, flow detection,

and product quantity detection on the production line.