UNI-T Digital Insulation Resistance Tester 1000V 5.5GΩ | UT501A
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- User manual / Instruction Book (PDF) Muat turun
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The UNI-T UT501A is a digital insulation resistance tester with selectable 100V, 250V, 500V and 1000V test voltages and a measuring range up to 5.5GΩ. It checks the insulation between conductors, or between conductors and earth, on cables, motors, transformers, switchgear and household appliances. AC voltage measurement, auto discharge and a warning light make it a dependable tool for electrical maintenance and inspection.
Key Features & Benefits
- Four test voltages – 100V, 250V, 500V and 1000V
- Up to 5.5GΩ insulation resistance at 250V, 500V and 1000V
- AC voltage measurement – 30V to 750V
- 2000-count backlit LCD with overload indication
- Auto discharge – safely discharges the circuit after testing
- Continuous measurement mode with red warning light and buzzer
- Auto power-off to save battery
Technical Specifications
| Specification | Value |
|---|---|
| Model | UT501A |
| Test Voltages | 100V / 250V / 500V / 1000V (0% to +10%) |
| Insulation Resistance @ 100V | 0.00MΩ–100MΩ, ±(3%+5) |
| Insulation Resistance @ 250V / 500V / 1000V | 0.00MΩ–99.9MΩ ±(3%+5); 100MΩ–5.5GΩ ±(5%+5) |
| Load Current | 1mA (0% to +10%) at rated load |
| Short-circuit Current | <2mA |
| AC Voltage | 30V–750V, ±(2%+3) |
| Display | 2000-count LCD with backlight |
| Power | 6 × 1.5V AA batteries |
What's in the Box
- 1 × UNI-T UT501A Insulation Resistance Tester
- 1 × Pair of high-voltage test leads (red and black)
- 1 × Pair of high-voltage alligator clips (red and black)
- 1 × Protective cover
- 1 × Storage bag
- 1 × Strap
- 6 × 1.5V AA batteries
- 1 × English user manual
Applications / Ideal For
- Cables and wiring – insulation checks on new and existing installations
- Motors and generators – winding insulation testing during maintenance
- Transformers and switchgear – routine inspection and fault finding
- Household appliances – safety checks after repair
- Electrical contractors and maintenance teams – testing and commissioning
Why Buy from Techno Tools
- Genuine UNI-T stock held in Malaysia
- Fast delivery nationwide, with same-day delivery in the Klang Valley
- Local warranty support from our team in Ampang, Selangor
- B2B friendly with formal quotations and invoices for companies
| Warranty period | 1 Year Warranty |
|---|---|
| Coverage | Free repair or replacement for defects in material and workmanship arising during normal use within 1 year from the date of purchase. |
| Not covered | Fuses, batteries, test leads and accessories; damage from accident, dropping, overload, misuse, or use outside the instrument's rated specifications. |
| Warranty void if | The instrument has been opened, repaired or modified by a party not authorised by UNI-T or its Malaysian distributor. |
Contact Techno Tools with your proof of purchase (invoice or receipt).
Order by 4PM to get delivered next working day! We use 24 hours service with carriers in most cases so that you can get your order delivered on time.
Free delivery for total orders above RM500, otherwise additional charges costs are calculated at checkout based on your order’s weight and delivery location.
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Please notify us within 14 calendar days of receiving your product to request a free exchange or full refund, if eligible. We will cover all return shipping costs, and no restocking fees will apply in this case.
Requests made after 14 days may be accepted at our discretion and will be subject to a 10% restocking fee. Techno Tools & Equipment reserves the right to reject any return request found to be ineligible.
Further details please click here for more info.