Magnetic Pole Pen Polarity Tester Identify North/South Pole Magnet Detector with Lamps for Coil Test

• [Portable and Easy to Use] Pen type magnetic tester, mini and portable, with one-button for convenience.
• [Accurate Magnetic Field Polarity Identification] A professional tester for quickly and safely identifying magnetic field polarity.
• [Versatile Usage] Suitable for determination and identification of permanent and electromagnet poles, magnetization polarity check, and coil testing.
• [Sturdy Plastic Case Included] Comes with a sturdy plastic tool case for secure storage and transport.
• [North and South Pole Distinction] The north and south polarity can be distinguished by the two lamps (red = n pole, green = s pole).

Specifications: Material: ABS Sensitivity: ±5mT (50Gs) Display: 2 LED lights (red = N pole, green = S pole) Service Temperature: -20~80℃ Storage Temperature: -40~150℃ Power Supply: 2 * 1.5V AAA battery (NOT included) Item Size: 154 * 27 * 24mm / 6.06 * 1.06 * 0.94in Item Weight: 64g / 2.27oz Package Weight: 263g / 9.30oz Package Size: 22 * 10.5 * 5.7cm / 8.66 * 4.13 * 2.24in Packing List: 1 * Tester 1 * Storage Case 1 * Manual (English)