Introducing the 0.28-inch 4.5-30V Two-Wire DC Voltmeter with a vibrant red LED display—a compact solution for hassle-free voltage measurement. Setting it up takes just a few minutes; connect the red wire to the positive pole and the black wire to the negative pole, and the LED display will start blinking.
With reverse polarity protection, you’re covered even if there’s a mix-up in wire connections. This voltmeter operates without an external power supply, directly measuring voltages within the 3.5-30V range. For precise measurements, the decimal point automatically adjusts based on the voltage—displaying two decimal places below 10V and one decimal place above 10V.
Ideal for monitoring storage battery voltage in motorcycles and cars, this voltmeter provides insights into battery status. It’s versatile enough for other voltage measurement applications. With a maximum operating voltage of 30V, ensure a margin during operation to prevent permanent damage from electrical sparks, power supply ripple, or abrupt voltage changes.
Featuring a bright and clear LED display, this voltmeter is your reliable tool for measuring DC voltages in the range of 4.5V to 30V.
Connections:
Red Wire: source +ve terminal.
Black Wire: Source -ve terminal.
Features:
- Don’t need the external power supply because it is a self-powered version of this display.
- Best operates in the working voltage range of 5V to 24V
- 100% Brand new and high quality.
Package Includes:
1 x 0.28inch 4.5-30V Two Wire DC Voltmeter Red
Raspberry Pi Camera Module 3 Wide
2WD Anodized Aluminium Robot Chassis
Waveshare USB HUB HAT (B) for Raspberry Pi Series with 4x USB 2.0 Ports
PIMORONI Cooling Fan SHIM for Raspberry Pi
Waveshare 1.3inch LCD Display Module for Raspberry Pi Pico, 65K Colors, 240×240, SPI
STMICROELECTRONICS Expansion Board, VL53L5CX, NUCLEO-F401RE Development Board
40pin Prototype Pi board Prototyping Pi Plate for Raspberry Pi 3/4B
Raspberry PI IQaudio DAC Pro
Raspberry Pi GPIO Multi-function Expansion Board for PI 4B/3B/3B+
Koptan 50mm High Temperature Resistance Tape for 3D Printers
220 x 220 x 0.5mm Frosted Heated Bed Sticker Build Plate Tape with Adhesive Backing for 3D Printer
Waveshare IMX378-190 Fisheye Lens Camera for Raspberry Pi, 12.3MP, Wider Field Of View
Argon ONE M.2 Expansion Board (NVME)
HSKRC 3 Inch 140mm Carbon Fiber Racing Kit
PI ZERO/ZERO W ENC28J60 Internet Module Supporting all RPI Board
Waveshare ESP32-S3 Microcontroller, 2.4 GHz Wi-Fi Development Board, dual-core processor with frequency up to 240 MHz
WIZnet Ethernet HAT
Waveshare SX1268 LoRa HAT for Raspberry Pi 433MHz Frequency Band
Two Trees – Double Sided PEI Spring Steel Sheet (Textured+PEI) With Magnetic Base Size 235x235mm
Raspberry Pi Camera Module 3 NoIR – Wide
Waveshare 3 Channel Relay HAT Smart Home for Raspberry Pi 3
Waveshare Adapter Board for Arduino and Raspberry Pi
Raspberry Pi GPIO Expansion Board One to Three
AC90-250V ESP8266, Wireless WIFI Relay, Module 1 Channel ESP-, 12F Wifi Development, Board AC/DC 5V/7-28V/5-, 80V Power Supply
NanoPi R2S
2-Wheel Drive Rugged Robot Chassis with 37mm 37B280 Gear Motor
Creality -Ender-3 S1 3D Printer
Raspberry PIIQ Audio Codec Zero
ABS Plastic Landing Gear for Quadcopter (Pack of 4) – Made in INDIA
Waveshare GSM/GPRS/GNSS/Bluetooth HAT for Raspberry Pi
GT511C3 Optical Fingerprint Scanner Module with cable 





There are no reviews yet.