# High Precision Mini OLED Digital Voltmeter for Embedded Use
### Key Highlights
1. Ultra-slim miniature form factor, can be easily embedded into all kinds of compact devices without taking extra space.
2. Adopts 12-bit high-accuracy ADC sampling technology, delivers extremely low detection deviation, ensures all your voltage measurements are precise and trustworthy.
3. Features a 0.5-inch 88×48 resolution OLED display, you can read the measured values clearly and directly under all light conditions.
4. 5Hz refresh rate by default, you can short circuit the B contact to switch to 10Hz for real-time tracking of dynamic voltage fluctuations.
5. Highly versatile for multiple use cases, ideal for embedded applications such as adjustable power supply voltage display.
### Product Parameters
- Item Name: Mini Digital Voltmeter
- Working Voltage: DC 3.5V-30V
- Measuring Range: DC 0V-30V
- Measuring Precision: 1%
- Refresh Frequency: 5Hz default, 10Hz available via shorting contact B
- Display: 0.5 Inch OLED Screen
### Short Circuit Setting Instructions
- Contact A Short Circuit: Voltage symbol (V) is displayed by default, the symbol will disappear after you short circuit A.
- Contact B Short Circuit: Default refresh rate is 5Hz, short circuit B to get 10Hz higher refresh rate.
### Suitable Use Cases
Perfect for DIY modification projects, industrial control equipment, adjustable power supply output voltage display, sensor supply voltage detection, vehicle battery voltage monitoring, and all embedded application needs.
### What You Get
1 * Mini Digital Voltmeter
### Warm Reminders
1. The listing photos do not represent the actual size, please check the description for specific size information.
2. Minor size error due to manual measurement is normal, thanks for your kind understanding.
3. The actual color of the product may differ slightly from the images due to different monitor settings.
The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.