Monitor voltage with precision and durability using this advanced Voltmeter, featuring a half-sealed ABS waterproof shell with an anti-collision design that ensures long-lasting protection in various environments. Equipped with a clear LCD digital display meter, it offers a wide measurement range from 4V to 120V, suitable for different models including DC3.5V-20V, DC3.5V-30V, DC7V-20V, DC7V-30V, DC18V-80V, DC40V-100V, and DC60V-120V, making it versatile for automotive batteries, industrial equipment, and more. Key Features: · Durable Waterproof ABS Housing: Half-sealed shell with anti-collision design provides robust protection against impacts and water, ideal for challenging environments. · Wide Voltage Measurement Range: Supports multiple voltage ranges from 3.5V up to 120V, covering most automotive and industrial battery systems. · LCD Digital Display with Blue Backlight: Ensures easy and clear reading of voltage data even in low-light conditions, enhancing user convenience. · Two-Wire Direct Test Design: No external power supply required, simplifying installation and operation with immediate voltage readings. · Fast Measurement Rate: Responds at a rate of 2 times per second or more, providing real-time monitoring of voltage changes. · Compact and Lightweight: Measuring approximately 80 x 42 x 13mm (3.2 x 1.7 x 0.5 inches) and weighing only about 37g (1.3oz), it is easy to install and handle. · Reliable Performance: Operates efficiently within a temperature range of -10°C to +50°C and relative humidity of 10-80% (non-condensing), maintaining accuracy under typical working conditions. Specifications: · Material: ABS Plastic · Item Type: Voltmeter · Display: LCD with Blue Backlight · Measurement Range Options: DC3.5V-20V, DC3.5V-30V, DC7V-20V, DC7V-30V, DC18V-80V, DC40V-100V, DC60V-120V · Working Voltage: No external power supply needed · Display Size: Approx. 80 x 42 x 13mm (3.2 x 1.7 x 0.5in) · Installation Size: Approx. 76 x 39mm (3 x 1.5in) · Measurement Rate: ≥2 times per second · Operating Temperature: -10°C to +50°C · Operating Humidity: 10-80% (no condensation) · Weight: Approx. 37g (1.3oz) Package Includes: · 1 x Voltmeter This reliable and easy-to-use voltmeter is perfect for monitoring battery voltage status in automobiles, industrial machines, and other power systems, providing accurate readings with durability and convenience. Ensure your equipment runs smoothly with this essential voltage monitoring tool.