Magnetic Pole Tester Pen – Smart Sensor N/S Polarity Identifier Tool

Details:

• Type: Magnetic pole testing pen
• Function: Detects and identifies North (N) & South (S) magnetic poles
• Use: Ideal for checking magnets, motors, sensors, and electronic projects
• Features: Smart sensor detection, compact design, easy one-hand operation
• Application: DIY, engineering, lab work, education, repair tasks