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Compact rectangular LCD power supply tester with 20/24 pin connector, buzzer alarm, plastic and aluminium alloy body, 126x64x18.5mm

Comidox 20/24 Pin LCD Power Supply Tester with Buzzer Alarm

SKU CH-SFG1-2GQ5G

Tests ATX, BTX, ITX and TFX supplies via 20/24-pin connector, showing voltages to ±0.01 V with audible alarm on faults

  • FeaturesCorded Electric, false
  • Sports Team1 Piece
  • TypeVoltmeter
  • LCD shows voltages to .01 V accuracy
  • Buzzer alarms when any rail exceeds limits
  • Tests 20 and 24 pin ATX plus SATA
  • Compact 126 x 64 x 18.5 mm tester weighs 120 g
  • Checks 3.3 V, 5 V, 12 V and PG signals

Quick PSU Health Check

This Comidox tester connects to 20 or 24 pin ATX, BTX, ITX and TFX power supplies to show voltage and PG values on an LCD. It suits technicians and builders who need a fast go or no go verdict before installing a unit. The compact plastic and aluminium alloy body weighs 120g and measures 126x64x18.5mm.

Sustained Load Behaviour

The device reads each rail including 3.3V, 5V, 12V, -12V and SB 5V with a stated accuracy of .01V. If any reading drifts outside the normal range the buzzer sounds continuously and the offending value flashes on the display. External connectors such as SATA, P4, P6 and P8 are indicated by LEDs only, not by LCD voltage readouts.

Before You Order

Verify that your power supply uses a standard 20 or 24 pin main connector plus the matching 4, 6 or 8 pin auxiliary plugs this tester supports. Note that a 4 pin SATA connector lacks the 3.3V line so the corresponding LED will stay off. The tester requires the 4 pin auxiliary plug inserted when using a 20 or 24 pin connector alone to avoid a false LL alarm.

Highlights

  • LCD shows voltages to .01 V accuracy
  • Buzzer alarms when any rail exceeds limits
  • Tests 20 and 24 pin ATX plus SATA
  • Compact 126 x 64 x 18.5 mm tester weighs 120 g
  • Checks 3.3 V, 5 V, 12 V and PG signals

Specifications

BrandComidox
FeaturesCorded Electric, false
Sports Team1 Piece
TypeVoltmeter

Questions about this item

How loud is the buzzer alarm when the tester runs continuously?

The tester emits a short double beep on power-up; a sustained beep sounds only when a voltage rail falls outside normal limits, so it stays silent during normal all-day use.

What power-supply connectors must I already have to use this tester?

You need a PSU with a 20-pin or 24-pin ATX main connector plus the matching 4-pin, 6-pin or 8-pin auxiliary plugs; the tester also accepts SATA, floppy and 4-pin peripheral headers.

Will the LCD still show voltages if I plug in an older 20-pin ATX supply?

Yes — the LCD displays all rail voltages and PG value on both 20-pin and 24-pin connectors; external SATA, 4-pin, 6-pin and 8-pin sockets show only LED status, not numeric readings.

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