The EXTECH 38092C is a robust and reliable clamp-on ammeter suitable for a wide range of electrical troubleshooting and maintenance applications. It allows users to measure AC and DC current, AC and DC voltage, and resistance without interrupting the circuit. The meter's data hold feature enables easy recording of readings, while the auto power off function conserves battery life. Its 1.25" jaw opening accommodates large cables, making it ideal for industrial environments. The audible continuity beeper simplifies continuity testing.