WM-5000A inspection device, light, strong, beautiful, economical, alloy shell, totally waterproof, sound and light both directions, ultra-low power, quiescent current is zero, the battery can be stacked one-time continuous use for one year or more, low-voltage automatic alarm prompts and data overflow tips. WM-5000A inspection device supporting communications system WM-5000T Block, location button, staff buttons, luminous labels, software A1.0/1.1 sets. WM-5000A-contact inspection device to read data, is the most economical inspection device market.