STAINLESS STEEL PROBE & HEAVY DUTY BODY Unlike market-standard carbon steel, our probe boasts stainless steel construction with an insulating layer, resisting rust and offering superior insulation for enhanced safety. Crafted with premium ABS materials, the entire electric pen structure is robust and resilient, ensuring longevity for everyday applications. LED DISPLAY & WIDER TEST RANGEEquipped with a crisp high-res LED digital display, this electrical tester ensures precise voltage readings at a glance. Its versatile 3V-72V DC testing range fits multiple auto & electrical tasks. With ±0.1V accuracy, it boosts work safety & efficiency. Bidirectional testing simplifies the low DC checks, doubling its practicality. AUXILIARY ILLUMINATION & ALARM BUZZERWINIMOO probe tester can seamlessly operate in dim environments with the built-in handle-mounted illumination. This automotive tester includes a buzzer beeper to instantly confirm polarity, adding convenience to your work. Overvoltage remin