... ADSL2+ test instrument with small size, specially designed for xDSL line test (xDSL include: ADSL, ADSL2, ADSL2+, READSL etc) and maintenance. It ... , telephone call function, line voltage indication and so on.The tester adopts LCD display and menu operation which can display the ... test results directly and improve the xDSL broadband service greatly. It's the best choice for the ...