1. Introduction
The OWON HDS2102S is a versatile 3-in-1 handheld device combining the functionalities of a digital oscilloscope, a multimeter, and a waveform generator. Designed for portability and ease of use, it is ideal for outdoor maintenance, rapid on-site measurements, automobile maintenance, and power detection. It features a 3.5-inch high-resolution, high-contrast color LCD display for clear data visualization.
Video: Overview of the OWON HDS200 series, highlighting its 3-in-1 functionality, portability, and key features.
2. Key Features
- Multifunctionality: Integrates Oscilloscope, Multimeter, and Waveform Generator (HDS2102S model).
- Display: 3.5-inch high-resolution, high-contrast color LCD, optimized for outdoor visibility.
- Power Management: Powered by an 18650 lithium battery, offering approximately 6 hours of continuous operation with a low power consumption of ≤3W.
- Connectivity: USB Type-C interface supports charging via power bank and PC software connection for data transfer and control.
- Durability: Integrated rubber covering design for a comfortable grip and enhanced durability.
- Calibration: Self-calibration function ensures measurement accuracy.
- Programmability: SCPI (Standard Commands for Programmable Instruments) support facilitates secondary development and automation.

Image: Device with a hangable bracket for convenient placement and examples of oscilloscope waveform displays.
3. Package Contents
Ensure all items listed below are present in your package:
- 1 x Main Device (OWON HDS2102S Digital Oscilloscope)
- 1 x Carrying Bag
- 1 x Oscilloscope Probe
- 1 x Power Plug (EU type)
- 1 x Probe Adjust Tool
- 1 x USB Cable (Type-C)
- 2 x Multimeter Leads (Red and Black)
- 1 x Quick Guide (Instructions Manual)
- 1 x BNC to Alligator Clip Cable

Image: Visual representation of all included accessories and the main device.
4. Device Overview
4.1 Front Panel
The front panel features the 3.5-inch LCD display, function buttons (F1-F4), mode selection, channel selection (CH1/2), horizontal control (HOR), system settings, save function, measure range, auto-set, trigger controls (Trig/Δ), and play/pause button. The multimeter input connectors are located at the bottom.

Image: Front view of the OWON HDS2102S handheld oscilloscope.
4.2 Top Panel
The top panel includes the BNC connectors for oscilloscope channels (CH1, CH2) and the waveform generator output (GEN OUT).

Image: Top view of the device with BNC connectors.
4.3 Side Panel
The side panel houses the USB Type-C interface for charging and communication, and the oscilloscope probe calibration signal output (1kHz square wave).

Image: Side view of the device with USB-C port and calibration signal.
4.4 Rear Panel
The rear panel features the battery compartment and a hangable bracket for convenient positioning.

Image: Rear view of the device with battery cover open.
4.5 Dimensions
Approx. 198mm (Height) x 96mm (Width) x 38mm (Depth). Weight is approximately 0.6 kg (main device, without battery).

Image: Device dimensions and key interface locations.
5. Setup
5.1 Battery Installation and Charging
The device is powered by an 18650 lithium battery. To install or replace the battery, remove the screw on the rear cover to access the battery compartment. The device can be charged via the USB Type-C interface using the provided power plug or an external power bank (5V/2A).

Image: Battery compartment and USB Type-C charging port.
5.2 Probe and Lead Connection
Connect the oscilloscope probes to the CH1 and CH2 BNC inputs on the top panel. Use the multimeter leads with the VΩ+C, COM, and mA/A inputs on the front panel for multimeter functions. For waveform generation, connect to the GEN OUT BNC connector.
5.3 Power On/Off
Press and hold the power button located on the front panel to turn the device on or off.
6. Operating Modes
The OWON HDS2102S integrates three main functions: Oscilloscope, Multimeter, and Waveform Generator. You can switch between these functions with just one key.

Image: Instrument Transformers - Function overview.
6.1 Oscilloscope Function
The oscilloscope mode allows for waveform observation and analysis. It features a 100MHz bandwidth and a real-time sampling rate of 500MSa/s. Key features include:
- Waveform Capture Rate: Max 10,000 wfrms/s.
- Record Length: Max 8K.
- Measurement Functions: Cursor measurement and multiple auto measurement functions (Frequency, Period, Amplitude, Max, Min, Mean, PK-PK).
- Acquisition Modes: Peak detect for jamming burr detection, high refresh, and deep storage for capturing exceptional and low probability events.
- XY Function: For phase comparison.
- Auto Set Function: One-key auto set for easy detection and debugging.
- Save Function: Save up to 4 settings, 4 reference waveforms, and 4 CSV waveform files. Connect to a computer via USB Type-C to recognize the oscilloscope as a USB flash drive for easy access to saved data.

Image: Oscilloscope functions including auto measurement, cursor measurement, and save options.
6.2 Multimeter Function
The integrated multimeter provides 20,000 counts with true RMS measurement. It supports auto-range functionality for ease of use. Measurements include:
- Voltage (DC 1000V input voltage)
- Current
- Resistance
- Diode
- Capacitance
- Continuity Test
It features a reading hold function and relative measurement function.

Image: Multimeter function demonstrating voltage, resistance, and capacitance measurements.
6.3 Waveform Generator Function (HDS2102S only)
The HDS2102S model includes a waveform generator with a maximum output frequency of 25MHz. It offers a 14-bit vertical resolution and 125MSa/s high sampling rate. Available waveform types include:
- Sine (0.1Hz - 25MHz)
- Square (0.1Hz - 5MHz)
- Ramp (0.1Hz - 1MHz)
- Pulse (0.1Hz - 5MHz)
- Arbitrary (0.1Hz - 5MHz) - including Sinc, Bessel, StairUp, StairUpDown, StairDown, AttAlt, AmpAlt.

Image: Waveform Generator functions and output types.
7. Specifications
7.1 Oscilloscope Specifications
| Parameter | HDS2102 | HDS2102S |
|---|---|---|
| Bandwidth | 100MHz | |
| Channels | 2-CH Oscilloscope | 2-CH Oscilloscope + 1-CH Generator |
| Sample Rate | 500MSa/s | |
| Acquisition Model | Normal, Peak detect | |
| Record Length | 8K | |
| Display | 3.5-inch LCD | |
| Waveform Refresh Rate | 10,000 wfrms/s | |
| Input Coupling | DC, AC, and Ground | |
| Input Impedance | 1 MΩ±2%, in parallel with 16pF±10pF | |
| Probe Attenuation Factors | 1X, 10X, 100X, 1000X, 10000X | |
| Max. Input Voltage | 400V (DC+AC, PK PK, 1MΩ input impedance) (10:1 probe attenuation) | |
| Bandwidth Limit (typical) | 20MHz / Full bandwidth | |
| Horizontal Scale | 2ns/div - 1000s/div, step by 1-2-5 | |
| Vertical Sensitivity | 10mV/div - 10V/div | |
| Vertical Resolution | 8 bits | |
| Trigger Type | Edge | |
| Trigger Modes | Auto, Normal, Single | |
| Automatic Measurement | Frequency, Period, Amplitude, Max, Min, Mean, PK-PK | |
| Cursor Measurement | ΔV, ΔT, ΔT&ΔV between cursors | |
| Communication Interface | USB Type-C | |
7.2 Digital Multimeter Specifications
| Parameter | Value |
|---|---|
| Max. Resolution | 20,000 counts |
| Testing Mode | Voltage, Current, Resistance, Capacitance, Diode, and Continuity test |
| Input Impedance | 10MΩ |
| Max Input Voltage | AC 750V, DC 1000V |
| Max Input Current | DC: 10A AC: 10A |
| Diode | 0-2V |
7.3 Waveform Generator Specifications (HDS2102S only)
| Parameter | Type | Frequency Range |
|---|---|---|
| Frequency Output | Sine | 0.1Hz - 25MHz |
| Square | 0.1Hz - 5MHz | |
| Ramp | 0.1Hz - 1MHz | |
| Pulse | 0.1Hz - 5MHz | |
| Arbitrary | 0.1Hz - 5MHz | |
| Sampling Rate | 125MSa/s | |
| Channel | 1-CH | |
| Amplitude Range | 20mVpp - 5Vpp | |
| Waveform Length | 8K | |
| Vertical Resolution | 14bits | |
| Output Impedance | 50Ω | |
8. User Tips
- The device is highly portable and functions as an excellent multimeter, making it suitable for various field applications.
- For extended use, the battery can be quickly replaced by removing the screw on the rear cover.
- The integrated rubber covering provides a comfortable and secure grip, preventing easy peeling off even after long-term use.
- The USB Type-C interface is versatile, allowing charging from an external power bank (5V/2A) for prolonged outdoor operation.
9. Troubleshooting
If you encounter any issues with your OWON HDS2102S, please consider the following basic troubleshooting steps:
- Device not powering on: Ensure the battery is correctly installed and sufficiently charged. Connect the device to a power source via the USB-C cable.
- Incorrect measurements: Verify that probes and leads are securely connected to the correct input terminals for the selected function. Perform a self-calibration if available.
- Display issues: Check for any physical damage to the screen. If the display is unresponsive or shows artifacts, try restarting the device.
- Connectivity problems with PC: Ensure the USB-C cable is properly connected and the correct drivers are installed on your computer.
For persistent problems, refer to the comprehensive user manual (if a PDF link was provided, it would be referenced here) or contact customer support.
10. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, ensure the battery is partially charged (around 50%) to prolong its lifespan.
- Battery Care: Avoid fully discharging the battery frequently. Charge the battery regularly even if the device is not in use.
- Probe Care: Handle probes and leads carefully to prevent damage. Store them neatly to avoid tangling.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official OWON website or contact your authorized dealer. Keep your purchase receipt as proof of purchase for warranty claims.





