Feature:1. 1 CHANNEL OUTPUT: Square wave signal generator support 1 channel PWM output signal, adjustable frequency range from 1Hz to 150KHz2. CLEAR LCD DISPLAY: Provide clearer display of frequency and duty cycle, bring high accuracy detection, with case protection3. DUAL WORKING MODE: Support frequency adjustment and duty cycle adjustment. UART is supported, and support output4. SUPPORT POWER OFF MEMORY FUNCTION: No need to set data after shutdown, the knob supports locking function to avoid misoperation5. WIDER APPLICATION: Square wave signal generator can generate square wave signal for experimental development, control motor drive, generate adjustable pulse for MCU Dimmer, speed governor, etc.Specification:Item Type: Square Wave Signal GeneratorSize: Approx. 78 x 42 x 37mm or 3.07 x 1.65 x 1.46inWorking Voltage: DC 3.3V-30VFrequency Range (normal mode): 1Hz-150KHzFrequency Range (accurate mode): 1Hz-15KHzFrequency Accuracy: 2 percent Duty Cycle Accuracy: 1 percent in normal modeDuty Cycle Accuracy: 0.1 percent in accurate modeDuty Cycle Range: 0.00 percent -100 percent Output Current: About 5-30mAOutput Amplitude: Same as input voltageOperating Temperature: -160 - 190(-40-85)Working Humidity: 0 percent -95 percent relative humidity.Package List:1 x Square Wave Signal Generator