Monitor your battery voltage accurately and effortlessly with this high-quality digital voltmeter, designed with a half-sealed ABS waterproof shell and an anti-collision structure for enhanced durability and long-lasting use. Featuring a clear LCD digital display with blue backlight, this voltmeter offers a wide measurement range from 4V up to 120V, making it suitable for various applications including automobiles, industrial equipment, and more. Key Features: · Durable ABS Waterproof Shell: The half-sealed casing with anti-collision design protects the device from impacts and water damage, ensuring reliable performance in demanding environments. · Wide Voltage Measurement Range: Available in multiple optional types covering DC 3.5V to 120V, this voltmeter accurately measures battery voltages across a broad spectrum to meet diverse needs. · Direct Two-Wire Testing: Requires no external power supply, simplifying installation and use while providing quick and efficient voltage readings. · Clear LCD Display with Blue Backlight: The digital screen offers easy-to-read data even in low-light conditions, enhancing user convenience. · Compact and Lightweight Design: With an approximate size of 80 x 42 x 13mm and weighing only 37g, this voltmeter is easy to install and handle without adding bulk. · Fast Measurement Rate: Delivers voltage updates at a rate of two times per second, ensuring timely and accurate monitoring. · Reliable Operating Conditions: Designed to function within a temperature range of -10°C to +50°C and humidity levels of 10-80% (non-condensing), suitable for various environments. Specifications: · Material: ABS · Item Type: Voltmeter · Display Mode: LCD with blue backlight · Measurement Range Options: DC 3.5V-20V, DC 3.5V-30V, DC 7V-20V, DC 7V-30V, DC 18V-80V, DC 40V-100V, DC 60V-120V · Working Voltage: No external power supply required · Appearance Size: Approx. 80 x 42 x 13mm (3.2 x 1.7 x 0.5 in) · Installation Size: Approx. 76 x 39mm (3 x 1.5 in) · Measurement Rate: ≥ 2 times per second · Operating Temperature: -10°C to +50°C · Working Humidity: 10-80% (no condensation) · Working Pressure: 80-106 kPa · Weight: Approx. 37g (1.3 oz) Package Includes: · 1 x Digital Voltmeter This digital voltmeter combines precision, durability, and ease of use, making it an ideal tool for monitoring battery voltage status in vehicles, industrial machines, and other electronic equipment. Its waterproof design and wide voltage range ensure dependable performance in various conditions, providing you with accurate readings whenever you need them.