Non-contact screwdriver voltage testing pen 12-220V LCD display voltage meter detector electric pen voltage indicator flat head

This product is a single-head cross-head electric screwdriver. If you need a cross-head, you can purchase it at the store.
Features:
1. Neutral and live wire identification function: The live wire indicator lights up red and green, while the neutral wire has a single green light. 2. Intelligent mainboard chip: Higher safety performance and longer lifespan. 3. Voltage sensing without leakage: When an AC voltage is detected nearby, the LED green light comes on, performing non-contact power measurement to prevent electric shock. 4. Three-layer safety warning: Digital voltage display, high-brightness color lights for indication, and buer alarm. 5. Insulated and leak-proof screw handle coating: Safe and reliable power measurement, with fall protection. 
Pareters:
Product Name: Digital Testing Pencil Screwdriver
Testing Range: 12 - 250V
Alarm Methods: Beeper / Dual-color Light / Digital Display
Product Length: 173MM
Circuit Breaker Head Material: Chromium-Vanadium Steel with Magnetic Drill Bit
Screwdriver Specifications: Phps Head Cross Slot 18MM Exposed Screwdriver Head
Detection Frequency Range: 50 - 60Hz
Display Method: Analog Number Display Voltage
Shell Material: Glued Handle, Anti-drop Insulation
Product Power Supply: AG13/LR44 Button Batteries * 3 (Built-in Battery for Shipping) 
Measurement Function/Technology:
Zero-phase line detection (even when the built-in battery is depleted, it can still measure the zero-phase line)
Non-contact AC voltage detection / Line break point search / Electrical on/off

The package includes:
1 x Electrical Testing Pen
1 x Instruction Manual