Description Voltage Test Socket Detector Rcd Test Leakage Detector Polarity Tester Phase Check Plug Socket Tester Neutral Circuit Tester Follow Our Store, can enjoy an extra 1% discount, and the price is more favorable! Add the product to cart follow in advance to enjoy priority delivery and get a small gift! Product name: S2001 Material: ABS flame retardant material Voltage range: 210VAC--250V AC Product size: 94*33*70mm Measuring range: test socket circuit Purpose: Check whether the three wires are connected incorrectly Product use: safety detection of power leakage socket Notes: 1. Please allowed 1-3mm differences due to manual measurement, thank you for your understanding! 2. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item