R5 242.12

Insulation Tester Analogue 250 / 500 / 1000V


The T1800 analogue insulation tester has 5 function switch positions of which 3 are insulation functions 250v, 500V and 1000V. The other two functions are Continuity and an AC voltmeter.

The built in live line indicator should always be checked before pressing the test button and should be off when the leads are connected in all functions except when using the voltmeter which doesn’t require the test button to be pressed.


  • Analogue insulation tester
  • Heavy duty carry case
  • Analogue display
  • Taut band movement
  • Auto discharge
  • Colour coded scale
  • Live circuit indication
  • AC Voltage measurement

Technical Overview

Feature Parameter Accuracy
Test Voltage range 250V



±2% of scale length
Insulation Resistance range 0-100MΩ



±5% of indicated value
Output Voltage on open circuit Rated test voltage +10%
Short Circuit Current (Max) 2mA
Continuity Range 0-50Ω
Open circuit terminal voltage 4.45V DC Approx
Short circuit terminal current 145mA DC Approx
Voltage Measurement 0 -600 VAC ±2% of scale length

Model Specification

Power Source 8 x 1.5V AA Batteries
Certificates UL, IEC61010-1. Certificate of Conformance


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.