AZDelivery 0.28 Inch Mini Digital Voltmeter with 7 Segment LED Display 2.5V - 30V, Voltage Display, Voltage Measurement Module, compatible with Arduino including E-Book! (Pack of 3)

• ✅ Get a three-piece deal of the AZDelivery 1602 LCD 2x16 Character Display Module with I2C Bundle..
• ✅ Precise measurement with several applications: Voltages of 2.5-30V can be safely and accurately measured with this Mini Voltmeter. The Digital Mini Voltmeter can be used to measure the voltage of 18650 batteries or car batteries with the help of the module's welded cables.
• ✅ Built-in potentiometer: With the Voltmeter you can make precise measurements easily and quickly, and through the integrated potentiometer you can make an exact calibration.
• ✅ Four digital voltmeters: The voltmeter contains 4 digital voltmeters, each with a different colour, one colour for each application.
• ✅ This product includes an E-Book that provides useful information on how to begin your project, it helps with a quick setup and saves time on the configuration process. We provide an array of application examples, full installation guides and libraries.

AZDelivery Module Mini Digital Voltmeter Panel 2,5V-30V DC 0.28 Inch with 7 Segment Display Voltmeter 2,5V-30V DC The Mini Voltmeter allows the reading of the voltages in a simple and fast way. Due to its characteristics, the Module is perfect to be installed in a house or another structure for a long time. Since it has Welded Cables the quick test of batteries or accumulators can be developed. In addition to its versatility, it has an easy connection. Just connect the black cable to the negative pole of the battery and the red cable to the positive pole of the battery. The reverse polarity protection makes it safer to use, especially for temporary installations. In case the reading is very accurate, the voltmeter can be calibrated, through the potentiometer on the back. The different colours displayed on the screen have different minimum voltages. This is because different coloured LEDs require different amounts of voltage to illuminate. So, each colour reflects a different range, the voltmeter with the red screen can measure from 2.5 to 30 V. The modules with the green screen and the yellow screen work from 2.6-30V and the blue screen from 3-30V. ✔️ Measuring range: 2.5V/2.6V/3.0-30V. ✔️ Operating voltage: Minimum 3V. ✔️ Screen: 0.28" LED. ✔️ Screen colours: Red, Green, Yellow, Blue. ✔️ Measurement accuracy: +- 5%. ✔️ Cable length: approx. 20 cm. ✔️ Dimensions: 31x14x10mm. ✔️ Weight: 4g. Welcome to the AZDelivery family! Here you will find high quality products for your projects with Raspberry Pi. We are pleased to offer you a series of application examples, complete installation guides, E-Books, libraries and personalized assistance. AZDelivery: Your Microelectronics Expert!