Features:1. With a voltmeter shows that the voltmeter error ± 0.1V, range 0-40V. (Note: To ensure the accuracy of the voltmeter, please ensure that the input voltage above 4V).2. Touch the button to switch the measurement input or output voltage, and the indicator shows which voltage is being measured.3. With power-down memory function, after power on the last measured voltage value that way.4. Long press the touch button for 3 seconds to turn off the LED display, touch the button again to open the LED display.5. With terminals, no iron can also be easy to use, and to keep the wire bonding point.6. Input voltage 4.0-40V (input voltage must be higher than the output voltage to be more than 1.5v.)7. Adjustable output voltage range 1.25V-37V continuously adjustable (input voltage must be higher than the output voltage of about 1.5V).8. The maximum output current up to 3A, normal and stable operating current at 2A.9. Using 150KHz internal oscillation frequency, belonging to the second generation switching voltage regulator, low power consumption, high efficiency.10. With overheat protection and short circuit protection.

Specifications:Module Model:LM2596 Buck Converter + VoltmeterRipple Frequency: About 150KhzRipple Peak: About 100mVLED Display Color: RedVoltage Meter Error: ± 0.1VMeasure Range: 4~40VStatic Power: 20mAhSize: 66mm x 34mm x 14mmWeight: 25g Wiring connection:IN+: connect IN+ to your Input PositiveIN-: connect IN- to your Input NegativeOut+: connect OUT+ to your Output PositiveOut-: connect OUT- to your Output Negative Step Down Regulator

Package Include:2 x lm2596 modules

• Application: LM2596 Buck Converter can be applied to fields in which the input voltage is higher than the step-down output voltage, such as batteries, power transformers. Buck module Can be used for many electronic projects.
• Product parameters: input voltage is DC 4.0~40V, the output voltage is 1.25V - 37V (continuously adjustable, the input voltage must be 1V higher than the output voltage), the output current is 2A (normal and stable) and 3A max, conversion efficiency 92% (highest), output ripple under 30mV, switching frequency 150KHz, operating temperature is -45 °C to 85 °C.
• Easy to DIY use: Press the button next to the voltmeter to display input voltage or output voltage. LED D3 lights on when the output voltage is displayed, tap the button, and LED D4 lights when the input voltage is displayed. Press and hold the button to turn off the display.
• LM2596S Buck Regulator Updated Version: Using 150KHz internal oscillation frequency, belonging to the second generation switching voltage regulator, low power consumption, high efficiency. With overheat protection and short circuit protection.
• Warm Tips: Switchable LED display shows both input voltage and output voltage, eliminates the need to hook up a DMM / multimeter to measure the input and output voltages. If the output current is greater than 2.5A (or the output power is greater than 10W), please work with a heat sink for a long time.

Color: blue

Power/Wattage: small