The item in the image is a Digital Clamp Meter DT-266, used for electrical testing.
Capabilities: Accurately measures AC current (up to 1000A), AC/DC voltage (up to 750V/1000V), and resistance.
Features: Includes a 3-1/2 digit LCD display with a max reading of 1999, data hold function, and overload protection.
Design: Features a large jaw design for non-contact current measurement of live wires without breaking the circuit.
Usage: Ideal for industrial, automotive, and residential electrical troubleshooting.