1. The -40 is a high-precision clamp meter designed to handle a wide range of measurement tasks with ease. This versatile tool features a high current rating of 600A, allowing you to measure even the most demanding electrical loads. 2. With its intelligent auto-ranging function and True RMS measurement capability, the -40 delivers accurate and reliable results every time. The large, clear display and backlight visibility in any lighting condition, while the data hold function allows you to ze readings for easy analysis. 3. The -40 is equipped with a host of additional features, including non-contact voltage detection, diode testing, resistance measurement, and automatic shutdown to conserve battery power. The , ergonomic design and large jaw opening easy to use and transport. 4. Intelligent Anti-burning: More Secure to use, all-round protection, no fear of overload. 5. Chip: More accurate measure, fast measurement speed! Sampling rate three times per second.Automatic Range,No need to distinguish the range, automatically identify the range Product Model: -40 AC Voltage: 4V/40V/600V DC Voltage: 4V/40V/600V AC Current: 4A/40A/600A Resistance:400/4K/40K/400K/4M/40M Battery type: DC 1.5V*2 AAA batteries Measuring rate: 3 times/s Maximum jaw opening size: 26mm Ambient operating temperature: 5-35 Storage temperature: -10-50 Due to different batches, there may be differences in product appearance and printed text, which not affect use. Colour:Black & Blue Material:ABS Package Contents: 1 * -40 clamp meter 2 * AAA batteries 2 * multimeter probe