The UT501A is a dependable insulation resistance tester for Aussie sparkies and HVAC techs who need quick, repeatable results on motors, transformers, cables, and switchboards. It measures insulation resistance between circuits or to earth and adds AC voltage and low-resistance checks so you can diagnose fast and work safely.
Who it’s for
Ideal for installers, facility maintenance teams, and apprentices doing commissioning, routine inspections, and fault-finding on residential, commercial, and industrial sites.
Key Specs
- Test voltages: 100V / 250V / 500V / 1000V
- Display: 2000-count LCD with backlight
- Functions: insulation resistance, AC voltage, low resistance, PI/DAR (per series capability)
- Safety: high-voltage indication, overload indication, auto discharge, audible/visual alarms
- Power: 6 × 1.5V LR6 batteries
- Form factor: rugged red/grey ABS housing; portable carry case
Features & Benefits
Accuracy & Safety
- Stable readings with clear pass/fail cues via warning light and buzzer
- Auto discharge protects user and equipment after each test
- High-voltage indication reduces risk during live environments
Worksite Ready
- Rugged housing for tough job sites and service vans
- Backlit display for plant rooms and low-light switchboards
- Carry case keeps leads and clips organised
Fast, Practical Use
- Automatic measurement and test-voltage secondary display for quick checks
- Continuous low-resistance mode with zero-return improves accuracy
- Auto power-off preserves battery life
What’s in the box
- UT501A meter, test leads, alligator clips, carry case, gallus strap
- 6 × LR6 batteries, English user manual
- 12-month warranty