Enhance your voltage regulation projects with this advanced adjustable DC-DC voltage regulator module, designed for precise and efficient voltage control. Constructed with durable epoxy resin material, this module features a built-in voltmeter with a ±0.1V measurement error and a wide measurement range of 0 to 40V, allowing you to accurately monitor both input and output voltages. The innovative touch-button interface enables easy switching between input and output voltage readings, with indicator lights showing the current measurement mode and saving the last setting even after powering off. Key Features: · Accurate Voltmeter Display: Integrated voltmeter with an error margin of ±0.1V and a measuring range from 0 to 40V, ensuring reliable voltage monitoring. · Touch Button Control: Quickly switch between input and output voltage display using the touch button; indicator lights clearly show which voltage is being measured. · Voltage Memory Function: Retains the last selected voltage display setting after powering off and on for user convenience. · Voltmeter Power Off: Easily turn off the voltmeter by pressing and holding the switch for 1 to 4 seconds to save energy when not in use. · Terminal Block Connection: Features a terminal block for simple and solder-free wiring, preserving wire bonding points and streamlining installation. · Wide Input Voltage Range: Supports input voltages from 4.0V to 40V (input voltage must exceed output voltage by at least 1V), suitable for diverse power sources. · Continuously Adjustable Output Voltage: Smoothly adjustable output voltage from 1.25V to 37V, meeting the needs of various electronic applications. · High Output Current Capacity: Delivers a maximum output current of up to 3A, with a stable operating current commonly around 2A, suitable for moderate power projects. · Efficient Switching Regulator: Utilizes a 150KHz internal oscillation frequency, representing the second generation of switching voltage regulators for low power consumption and high efficiency. Specifications: · Material: Epoxy Resin · Voltmeter Error: ±0.1V · Measuring Range: 0–40V · Input Voltage: 4–40V · Adjustable Output Voltage: 1.25–37V · Maximum Output Current: 3A · Stable Operating Current: 2A · Internal Oscillation Frequency: 150KHz Advanced Calibration Function: This module includes an input and output voltage measurement error calibration feature. By long-pressing the switch for over 4 seconds, users can enter calibration mode to fine-tune voltage measurements within a ±0.5V range, ensuring precise voltage output and input readings without losing settings after power cycles. Package Includes: · 1 x Adjustable Voltage Regulator Module This versatile voltage regulator module is ideal for hobbyists, engineers, and DIY enthusiasts who require a reliable, accurate, and efficient voltage regulator solution with easy-to-use controls and robust performance. Whether for powering custom electronics, prototypes, or small devices, this module delivers consistent output and comprehensive voltage monitoring in a compact, durable design.