IP67 Dust & Waterproof rugged EARTH TESTER 3-Pole and 2-Pole Earth Resistance measurement (0.01 to 2000Ω) Waterproof design (IP67) Rotary Switch makes the user interface very intuitive Large LCD Display with Backlight LED to monitor correct / non correct auxiliary earth spike resistance Earth Voltage Measurement (AC/DC 0 to 300V) CAT Ⅳ 100V www.kew-ltd.co.jp/en/products/detail/01283/