🧰 What Is a Test Pen?
A test pen, like the BSIDE X1/X2 Voltage Tester, is a compact, non-contact voltage detector. It’s perfect for quick safety checks. With features like NCV (Non-Contact Voltage) detection, infrared thermometer, and LED indicators, test pens are ideal for confirming if a wire or socket is live.
✅ Best for:
- 
Quick voltage checks (AC) 
- 
Detecting live wires in walls or cables 
- 
Home use and basic troubleshooting 
❌ Limitations:
- 
Cannot measure voltage, resistance, or current precisely 
- 
Not suitable for in-depth diagnostics 
🔬 What Is a Multimeter?
A multimeter is a more comprehensive testing tool that can measure:
- 
AC/DC voltage 
- 
Current (amps) 
- 
Resistance (ohms) 
- 
Continuity, diodes, capacitance, temperature, and more 
Take the BSIDE S10 Smart Multimeter for example — it features auto-ranging, color LCD, and smart detection, making it ideal for both DIYers and professional electricians.
✅ Best for:
- 
Diagnosing complex circuit issues 
- 
Measuring exact voltage, current, and resistance 
- 
Professionals and advanced users 
❌ Limitations:
- 
Requires more electrical knowledge 
- 
Bulkier than a test pen 
⚖️ Comparison Table: Test Pen vs Multimeter
| Feature | Test Pen (e.g., BSIDE X1/X2) | Multimeter (e.g., BSIDE S10) | 
|---|---|---|
| Voltage Detection | ✅ | ✅ | 
| Current Measurement | ❌ | ✅ | 
| Resistance Measurement | ❌ | ✅ | 
| Continuity Testing | ❌ | ✅ | 
| Size & Portability | ✅ Very Compact | ❌ Slightly Larger | 
| Ease of Use | ✅ Beginner-Friendly | ⚠️ Requires Some Knowledge | 
| Best Use Case | Quick Safety Checks | In-Depth Electrical Diagnosis | 
🔧 Which One Should You Use?
- 
For quick checks around the house: Choose the BSIDE X1/X2 Voltage Tester. 
- 
For serious electrical diagnostics or repairs: Go with the BSIDE S10 or ZT-X Multimeter. 
- 
Want both? Pair them for a complete toolkit — many electricians carry both tools for flexibility. 
🛍️ Recommended BSIDE Products
✅ BSIDE X1/X2 Voltage Tester
Features NCV, LED alarm, infrared thermometer, and compact design.
✅ BSIDE S10 Smart Multimeter
Color LCD, smart auto-detection, accurate measurement of multiple parameters.
✅ BSIDE ZT-X Multimeter
Triple display, True RMS, temperature, capacitance, and diode testing.
Explore more tools at: www.bsidemeter.com
🏁 Final Thoughts
While a test pen is perfect for fast voltage detection, a multimeter offers broader functionality for electrical measurement. Choosing the right tool depends on your use case, experience level, and budget. Luckily, BSIDE offers both — smart, affordable, and reliable.




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