Compact Pen styles Design : Portable and lightweight pen shaped structure for easy 1 handed operations, perfect for electricians' inspections and on site repairs with its pocket friendly size. High accuracy Measurements : Professional grades accuracy for alternating current/Direct Current voltages, resistance, continuity, and diode testing, delivering efficient data with minimal error. Multi Function Testing : Supports voltages, resistance, diode, continuity buzzer, and relative measurement, making it a multipurpose tool for electrical repairs and circuit diagnostics. Auto Ranging Convenience : Automatically detects and switches ranges without manual , ideal for beginners and ensuring efficient measurements. User Friendly Features : Equipped with a HOLD button to freeze readings, backlit display for clear visibility in low light, and sturdy ABS construction for long lasting use.