Coolmax PS-228 Black Power Supply Tester with 6 and 8 pin PCI-E Connector

Easy to check ATX power supply
Accurate voltage indicator +/- 0.1V (+12V1/+5V/+3.3V/5VSB/+12V2/-12V)
ATX P.G. value display
Lower or higher P.G. values alarm
ATX output connectors check
Lower voltage detected alarm
Over voltage alarm
No voltage detected alarm
Each Voltage normal range:
+5V, +3.3V, +5VSB is +/-5%;
+12V1, +12V2, -12V is +/-10%