3 Way Frequency Meter Signal Generator Module 1Hz-150 KHz Duty Cycle PWM Pulse Signal Generator with LCD Display - Price history & Review | AliExpress Seller - Voktta Direct Store | Alitools.io
Xy-pwm Signal Generator 1 Channel 1hz-150khz Pwm Signal Generator Pulse Frequency Duty Cycle Adjustable Module Lcd Display - Integrated Circuits - AliExpress
Source ZK-PP1K Dual Mode LCD PWM Signal Generator 1-Channel 1Hz-150KHz PWM Pulse Frequency Duty Cycle Adjustable Square Wave Generator on m.alibaba.com