ST-1503 Analog Insulation Tester (0.5kV, 1kV)


Analog Insulation Tester (0.5kV, 1kV) is most suitable for insulation resistance measurement of electrical household appliances, power line distribution and installation. Instant operation is possible with a push button, convenient timer is provided with automatic power off after three to five minutes to save the battery power.

  • High quality Taut Band movement.
  • Measures insulation(MΩ), continuity(Ω) and AC voltage.
  • LED (red) indication when testing insulation and continuity.
  • Use of a high efficiency and accurate DC-DC converter.


  • Insulation Resistance
    - Test voltage (DC V): 500V; 1000V.
    - Output voltage open circuit: Rated test voltage +10%.
    - Measuring ranges (Mid-scale value): 0-1000MΩ; 0-2000MΩ, (20MΩ); (40MΩ).
    - Accuracy: ± 5% rdg.
    - Short circuit current: 1mA.
    - Maximum battery current: Approx. 80mA (500V); 150mA (1000V).
  • Continuity: 0-100Ω.
    - Line frequency range: 100mV.
    - Open circuit voltage: 5V±1V.
    - Short circuit current: 22.5mA.
    - Accuracy: ± 5% of scale length.
  • AC Voltage ranges: 0-600V AC.
    - Accuracy: ± 2.5% of full scale.
  • Dimensions: 163(L) × 100(W) × 50(D)mm
  • Weight (battery included): Approx. 440g
  • Power source: 1.5V (AA) × 6
  • Safety Standard: EN 61010-1 CAT II 600V

Accessories: Instruction manual, Test leads, Batteries, Carry case