JTX A9 High-Precision Sampling, Digital Display

JTX A9 Multifunction Waveform Meter – 4.0″ Display USB Tester & Mobile Repair Diagnostic Tool

Product Overview

The JTX A9 is a multifunction diagnostic meter designed for mobile phone motherboard repair, charging fault testing, and electronics troubleshooting. It combines waveform analysis, analog-style pointer display, multimeter functions, diode testing, and Type-C voltage/current measurement in one compact device.

4.0-Inch Color Display

The A9 features a 4.0-inch color display with 320 × 480 resolution for clear viewing of measurement values and waveform curves. Large-font display mode makes readings easier to see while working at a busy repair bench.

Multiple Measurement Modes

The device provides several useful diagnostic modes. Pointer-curve mode combines an analog-style pointer with a live waveform, while waveform mode displays changing voltage or current over time. Diode mode provides numerical forward-voltage readings, and voltage mode supports real-time measurement with 1mV resolution and curve recording.

Type-C USB Testing

The built-in Type-C tester can be used to check USB chargers, cables, power banks, and charging boards. Current measurement supports 0.1mA resolution with an accuracy of 0.5mA.

PC Integration & Protection

The upper-computer function allows measurement data and waveform information to be viewed through a connected Windows PC. Short-circuit protection reminders and high-voltage alerts provide additional protection during testing.

Specifications

• Brand: JTX
• Model: A9
• Display: 4.0-inch Color IPS
• Resolution: 320 × 480
• Input Voltage: DC 0–36V
• Power Supply: 5V 2A
• Current Resolution: 0.1mA
• Current Accuracy: 0.5mA
• Voltage Resolution: 1mV
• Detection Current: 0–8A
• Protection Voltage: <60V
• Protection Current: <15A
• Banana Plug Rating: 40V / 8A
• Diode Test Output: 0–2.8V
• Applications: Mobile Phone, PCB and Electronics Repair