DropOS

Features: 1. Compact design with an ultra-slim profile, easily fits into various compact device spaces 2. 12-bit high-precision ADC sampling ensures low detection error and accurate, reliable voltage measurement 3. 0.5-inch OLED display with 88×48 resolution for clear and intuitive measurement readings 4. Default 5 Hz refresh rate with a short-circuit switch to 10 Hz, enabling real-time tracking of dynamic voltage changes 5. Wide range of applications, suitable for embedded scenarios such as adjustable power supply voltage display Parameter: Product Name: Digital Voltmeter Supply Voltage: DC 3.5–30 V Measurement Range: DC 0–30 V Operating Current: <20 mA Refresh Rate: 5 Hz (shorting pin B switches to 10 Hz) Measurement Accuracy: Approx. 0.7% (e.g., for a 10 V input, the display error is 10 × 0.007 = 0.07 V) Display Digits: 3-digit white text (decimal point shifts automatically) Display: 0.5-inch OLED screen Resolution: 88×48 Applications: Industrial control equipment, adjustable power supply output voltage display, sensor supply voltage detection, vehicle battery voltage monitoring, and other embedded applications Function Configuration via Short-Circuiting: Short-circuit point A: By default, displays the voltage symbol (V); short-circuiting removes the (V) symbol Short-circuit point B: Default refresh rate is 5 Hz; short-circuiting B switches to 10 Hz Package include: Voltmeter x1