Analogue Insulation Tester
The DT-5503 is a highly compact and easy to use Insulation and Continuity Tester. The instrument offers three insulation test ranges: 250V, 500V and 1000V, a 3Ω continuity range and a 500Ω resistance range. This meter is not only equipped with a “Live Circuit Warning” but also displays the actual AC voltage measurements of the mains supply.

Size (H x W x D): 200mm x 92mm x 50mm

Weight: 546g



Insulation Test

DC Test Voltage

250V 500V 1000V

Measuring Ranges (Mid-Scale Value)


Rated Current

1mA DC+20%, -0%

Output short Circuit Current

1.3mA DC approx

Accuracy Guaranteed Ranges

0.05-10M ±5%; 0.1-20 ±5%; 0.2 -40M ±5%;


±7% of Scale length at ranges other than above ranges

Continuity Test Ranges


±1.5% of Scale Length

Open Circuit Voltage Output

4.1VDC (Approx)

Short Circuit Current Output

210mA Min

AC Voltage Warning

AC Voltage Range

0-600V AC for 30 seconds


±5% of Scale Length

Input Impedance



Withstand Voltage

7400V AC 50Hz or 60Hz for one minute between electrical circuits and housing case

Safety Standards

IEC 61010-1 CAT III

Accessories: Test leads, “AA” Battery x 6 and gift box with carrying case.

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