Insulation packaging design that is waterproof, moisture-proof, and oxidation for use Bee beep prompt with a flashing blue light for instant judgment, eliminating the need to stare at the lights Type C interface with a rechargeable battery design, and environmentally friendly One-click testing for simple and convenient operation, improving maintenance and testing efficiency Low battery dual reminder with visual prompts to prevent power loss at critical moments, Weight: 0.05621787681 Pounds, Manufacturer: Hipzeepo