Installation Manual

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When the E3000H is started, the reading is successful, etc., the PWM signal is output on the Buzz pin

according to the setting. The signal output can drive the buzzer to sound a sound through an external

matching circuit. The Buzz pin has limited load capacity and cannot directly drive the buzzer to sound, so

as not to damage the chip on the E3000H.

The buzzer drive circuit that can be referred to is as follows: