ZTY0225A is a stable, safe, and reliable digital intelligent clamp gauge (hereinafter referred to as the clamp gauge). The overall circuit design is centered around a large-scale integrated circuit dual integrator A/D converter, with a full range overload protection circuit and a unique exterior design that makes it a high-performance specialized electrical instrument. Clamp gauges can be used to measure AC/DC voltage, AC current, resistance, circuit continuity, and frequency, making them an ideal tool for users to carry with them.