Description: Power Supply Tester: It can detect ATX, BTX, ITX, TFX computer power supply, and can display the voltage and PG value of each group in liquid crystal, and quickly test the performance of computer power supply. Features: LCD displays various parameters such as output voltage and PG. When each exceeds the normal value, the buzzer will emit a warning sound and the corresponding value will flash. Application: Support for 20Pin, 24Pin ATX interface, support for SATA interface, support 4Pin interface, support PCI-E graphics card 6Pin interface, support for floppy drive interface, support for ATE hard disk interface  Test voltage: There are +3.3V, -12V, +5VSB, +12V1, +12V2, +5V and PG time values. Package includes: 1 Power Supply Tester. Specification: Power Supply Voltage: 12V Material: ABS Plastic Product Size: 89mmx63.7mmx17.5mm Package Includes: 1 LCD Power Supply Tester Note: Please allow slightly errors due to manual measurement and different monitors.