Martindale VT7 Single Pole Voltage Tester
The Martindale VT7 Single Pole Voltage Tester provides single-pole contact indication for AC voltages from 50V to 600V. It alerts the user through a bright red LED and an audible signal, making the indication easy to notice. A built-in self-test also allows the instrument to be checked before use.
Designed for practical access, the tester has an external probe tip that can reach into confined spaces. Users can operate the Martindale VT7 Single Pole Voltage Tester while wearing protective gloves and gauntlets. This design avoids the need for potentially unsafe direct contact with a finger when checking live panel casings.
Durable construction supports use in both industrial and domestic settings. In addition, the IP54 enclosure provides water resistance and suits indoor or outdoor work. The probe complies with GS38, while the instrument conforms to the stated electrical safety and EMC standards.
Key Benefits
- Provides clear audible and bright red LED alerts when AC voltage is detected.
- Covers a broad 50V to 600V AC RMS range for common mains voltage checks.
- Allows operation while protective gloves or gauntlets are being worn.
- Reduces the need for potentially unsafe direct finger contact with panel casings.
- Uses an external probe tip to improve access in confined or restricted spaces.
- Includes a built-in self-test for checking the tester before use.
- Supports indoor and outdoor work through its IP54-rated, water-resistant enclosure.
- Offers durable construction for industrial and domestic applications.
- Uses both sound and light, helping users recognise an indication quickly.
- Includes the required 9V PP3 alkaline battery for immediate set-up.
Common Applications
Martindale VT7 Single Pole Voltage Tester is suitable for a range of testing, maintenance and inspection tasks, including:
- Detecting AC voltage in industrial electrical installations
- Checking AC voltage in domestic electrical installations
- Supporting smart meter installation work
- Detecting live panel casings
- Carrying out checks while wearing protective gloves
- Indoor voltage indication tasks
- Outdoor voltage indication tasks
- Reaching test points located in confined spaces
Why Choose This Model?
No alternative models were supplied for direct comparison. This model combines 50–600V AC indication, audible and bright LED alerts, a built-in self-test, GS38 compliance and an IP54-rated enclosure in one single-pole tester.
Product Comparison
Alternative model specifications were not included in the supplied information, so the table below summarises the verified capabilities of the main product.
| Comparison point | Martindale VT7 Single Pole Voltage Tester |
| Primary purpose | Single-pole contact AC voltage indication |
| Voltage range | 50V–600V AC RMS |
| Indication type | Bright red LED and audible indication |
| Notable function | Built-in self-test |
| Ingress protection | IP54, water resistant |
| Dimensions | 236 × 44 × 33mm |
| Weight | Approximately 120g with battery included |
General Specifications
| Specification | Details |
| Product type | Single-pole contact voltage indicator |
| Visual indication | Bright red LED |
| Audible indication | Yes |
| Self-test | Built-in self-test |
| Probe compliance | GS38 compliant |
| Safety standard | BS EN 61010-1 |
| Safety categories | CAT IV 300V; CAT III 600V |
| Insulation class | Class II, double insulation |
| Pollution degree | 2 |
| EMC standard | BS EN 61326-1 |
| Ingress protection | IP54, water resistant |
| Power supply | 9V PP3 alkaline battery, IEC 6LR61 / NEDA 1604A |
Measurement and Accuracy Specifications
| Specification | Details |
| Measurement function | AC voltage detection |
| Voltage range | 50V–600V AC RMS |
| Frequency range | 50–60Hz |
| Test current | Less than 5µA |
| Indication method | Audible signal and bright red LED |
Mechanical and General Information
| Specification | Details |
| Operating temperature | -10°C to 55°C |
| Storage temperature | -10°C to 55°C |
| Operating humidity | Up to 85% RH |
| Storage humidity | Up to 85% RH |
| Maximum altitude | Up to 2,000m |
| Dimensions | 236 × 44 × 33mm |
| Weight | Approximately 120g, including battery |
| Current consumption | 34mA maximum |
| Battery type | 9V PP3 alkaline battery, IEC 6LR61 / NEDA 1604A |
| Construction | Durable construction for industrial and domestic use |
| Probe design | External tip for access in confined spaces |
Specification Notes
- The stated weight of approximately 120g includes the fitted battery.
- The CAT IV 300V and CAT III 600V ratings apply as the stated safety categories.
- The -10°C to 55°C temperature range is stated for both operation and storage.
What’s Included
- Martindale VT7 Single Pole Voltage Tester
- 9V PP3 alkaline battery
- Instruction manual
