
The HDS2102A provides comprehensive waveform-based automotive diagnostics in a portable handheld format. Its 2-channel oscilloscope offers 100 MHz bandwidth, 500 MSa/s sampling, 8k record length, and 8-bit vertical resolution for capturing automotive electrical signals. The integrated 20,000-count multimeter supports voltage, current, resistance, capacitance, diode, and continuity measurements. A built-in automotive waveform library enables technicians to compare measured signals with reference waveforms during troubleshooting. Vehicle diagnostic functions cover independent and distributorless ignition systems, accelerator pedal and engine sensors, ABS, crankshaft and camshaft sensors, lambda and MAP sensors, throttle position, knock and coolant temperature sensors, as well as FlexRay, K-Line, LIN, and CAN physical-layer testing. Additional functions support injector diagnosis, glow plug testing, fuel pump current, alternator ripple, charging circuits, parasitic drain current, and relative cylinder compression testing.
| Oscilloscope | Bandwidth | 100 MHz |
| Channels | 2 channels | |
| Sample Rate | 500 MSa/s | |
| Acquisition Mode | Normal, Peak Detect | |
| Record Length | 8k | |
| Waveform Refresh Rate | 10,000 wfms/s | |
| Vertical Resolution | 8 bits | |
| Vertical Sensitivity | 10 mV/div to 10 V/div | |
| Horizontal Scale | 5 ns/div to 1000 s/div, in 1-2-5 steps | |
| Input Coupling | DC, AC, Ground | |
| Input Impedance | 1 MΩ ±2%, parallel with 16 pF ±10 pF | |
| Maximum Input Voltage | 400 V (DC + AC, peak-to-peak) with 1 MΩ input impedance and 10:1 probe attenuation | |
| Bandwidth Limit | 20 MHz typical | |
| Probe Attenuation | 1X, 10X, 100X, 1000X, 10000X | |
| Trigger | Trigger Type | Edge |
| Trigger Modes | Auto, Normal, Single | |
| Measurement | Automatic Measurements | Frequency, Period, Amplitude, Max, Min, Mean, PK-PK |
| Cursor Measurement | ΔV, ΔT, ΔT&ΔV between cursors | |
| Multimeter | Resolution | 20,000 counts |
| Testing Modes | Voltage, Current, Resistance, Capacitance, Diode, Continuity | |
| Input Impedance | 10 MΩ | |
| Maximum Input Voltage | AC 750 V, DC 1000 V | |
| Maximum Input Current | AC 10 A, DC 10 A | |
| Diode Test | 0–2 V | |
| Automotive Diagnostics | Ignition Systems | Independent ignition and distributorless ignition systems; primary/secondary voltage, current, trigger, and feedback testing |
| Sensors | Accelerator pedal, crankshaft, camshaft, ABS, lambda, MAP, throttle position, knock, coolant temperature, and road speed sensors | |
| Crankshaft Sensors | Inductive and Hall-effect types; floating and non-floating measurements during cranking and operation | |
| ABS Sensors | Inductive, reluctance, and Hall-effect types | |
| Lambda Sensors | Titania and Zirconia sensor testing | |
| MAP Sensors | Digital fuel, simulated turbocharging, analog fuel, and pressure/temperature testing | |
| Bus Diagnosis | Supported Physical Layers | FlexRay-P, FlexRay-N, K-Line, LIN, CAN |
| Engine | Injector Diagnosis | Bosch Common Rail Piezo and solenoid injector current; petrol multi-point injection and gasoline direct injection |
| Glow Plugs | Individual voltage, voltage and current, and current testing | |
| Fuel System | Fuel pump current, pressure control valve, and quantity control valve testing | |
| Other Components | Purge solenoid, variable-speed cooling fan, and EGR solenoid testing | |
| Charging & Starting | Charging Circuits | Alternator AC ripple and alternator voltage/current testing for 12 V and 24 V systems |
| Parasitic Drain | Parasitic drain current testing | |
| Starting Circuits | Relative cylinder compression pressure testing for diesel and gasoline engines | |
| Display | Display | 3.5-inch LCD |
| Interface | Communication Interface | USB Type-C |
| Power | Battery | Rechargeable 18650 Li-ion battery, approximately 3–6 hours continuous operation |
| Charging | USB Type-C; supports power bank charging |