1. Compact, ultra-slim design that 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 refresh rate of 5 Hz, switchable to 10 Hz via short-circuiting, for real-time tracking of dynamic voltage changes
5. Wide range of applications, suitable for embedded scenarios such as adjustable power supply voltage display
Product Name: Digital Voltage Meter
Supply Voltage: DC 3.5–30 V
Measurement Range: DC 0–30 V
Operating Current: <20mA
Refresh Rate: 5Hz (switchable to 10Hz by shorting Pin B)
Measurement Accuracy: Approx. 0.7% (e.g., for a 10V input, display error is 10 × 0.007 = 0.07V)
Display Digits: 3-digit white text (automatic decimal point shifting)
Display: 0.5-inch OLED display
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
Jumper A: By default, displays the voltage symbol (V); when jumpered, the (V) symbol will not be displayed
Jumper B: Default refresh rate is 5Hz; jumpering B switches to 10Hz
Voltmeter x1
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