Powerful testing in the palm of your hand
The UNI-T UT505B is perfect for sparkies who need accuracy and safety when checking insulation on motors, cables, and other gear. It’s both a digital multimeter and a high-voltage resistance tester.
Table of contents
- ✅ Built for Aussie jobs, big and small – Great for detailed insulation checks on large equipment
- ✅ What’s included – Ready to go out of the box, no add-ons needed
- ✅ Spec highlights – Helps you compare with confidence
Built for Aussie jobs, big and small
Whether you're working on a precision appliance or a heavy-duty transformer, the UT505B has your back. It gives you stable, trusted results with every test.
- ✅ Measures insulation resistance from 50V to 1000V
- ✅ Includes PI and DAR for reliable long-term insulation checks
- ✅ Step voltage testing from 50% to 120% to simulate stress conditions
- ✅ Remote probe lets you test with just one hand—super handy on-site
- ✅ Displays leakage current and alerts for live wires and high voltage
- ✅ Auto discharge improves safety after testing
- ✅ 99-group data storage—great for site reports and inspections
- ✅ Auto fuse check and comparison mode to save time on site
- ✅ Big 6000-count display with an analogue bar and backlight
What’s included
You get everything you need to get started straight out of the box, perfect for workshops and field jobs alike.
- ✅ 1 x UT505B tester
- ✅ 6 x AA batteries (1.5V)
- ✅ 1 x set of test leads and probes
- ✅ 1 x set of alligator clips
- ✅ 1 x soft carry bag
- ✅ 1 x English user manual
- ✅ 12-month Aussie warranty
Spec highlights
Engineered for pro-level diagnostics with a full set of features tailored for Australian conditions.
- ✅ Voltage ranges: 50V / 100V / 250V / 500V / 1000V
- ✅ Insulation resistance: up to 200GΩ
- ✅ AC/DC voltage: 0–600V
- ✅ Capacitance testing up to 500μF
- ✅ Frequency range: 45Hz–1kHz
- ✅ General resistance up to 10MΩ
- ✅ True RMS readings for more accurate results
- ✅ Meets IEC 61557 compliance for safety
- ✅ Size: 225mm x 103mm x 59mm, Weight: 630g