This item is an Epica Star Digital Voltage Tester (model EP-60594), a handheld tool designed to detect AC and DC voltage.
Voltage Range: It can test circuits ranging from

12V12 V
12V
to

250V250 V
250V
.
Functionality: The device features a digital display to show voltage levels and can test for direct voltage, indirect voltage, and continuity.
Features: Includes an integrated LED light for night vision, allowing for safe use in dark environments.
Application: It is suitable for maintenance checks on household appliances, testing for leakage, and identifying broken lines.