Tenmars YF-509 Insulation Tester

    • Model: Tenmars YF-509
    • 3-1/2 digit LCD display with maximum reading of 2000.
    • Overload indication.
    • Low battery indication.
    • Measures high insulation resistance manual range: 0.1MΩ to 2000MΩ
    • Measures AC 0 to 750V and DC voltages 0V to 1000V.