VOLTCRAFT VC-55 S Two-Pole Voltage Tester CAT III 1000 V, CAT IV 600 V Silent (No Sound) LCD, LED VC-17790165

Electricians working in noise-sensitive environments—such as hospitals, offices, or residential areas at night—need a reliable voltage tester that won't disturb occupants. The VOLTCRAFT VC-55 S two-pole voltage tester delivers precise AC/DC voltage measurement up to 1000 V with silent operation, replacing audible beeps with clear visual indicators on its LCD and LED display. Its CAT III 1000 V and CAT IV 600 V safety ratings ensure protection even in high-energy industrial circuits, while the integrated LED flashlight illuminates dark distribution boards. Beyond voltage, it checks continuity, resistance, frequency, phase rotation, and RCD trip function—all without a single sound.

Key specifications

• Voltage range: 6–1000 V AC/DC
• Safety rating: CAT III 1000 V, CAT IV 600 V
• Display: LCD and LED, with backlight
• Continuity test: visual indication
• Resistance measurement: 0–1999 Ω
• Frequency measurement: 0–400 Hz
• Phase rotation test, single-pole phase test, RCD trip test
• Polarity indication
• Protection class: IP64
• Silent operation (no acoustic signal)
• Integrated LED flashlight
• Power supply: 2x AAA batteries (1.5 V)
• Response time: < 0.5 s
• Operating temperature: -10 to +50 °C

Why choose it

The VC-55 S stands out with its deliberate silence—ideal for testing in occupied buildings, during night shifts, or anywhere noise is a concern. Despite the lack of sound, you won't miss a reading: the bright LCD and LED indicators provide unambiguous visual confirmation. Its dual safety ratings (CAT III 1000 V and CAT IV 600 V) make it suitable for both distribution boards and outdoor service entrances. The built-in flashlight is a practical bonus for poorly lit areas, and the IP64 rating means dust and splashing water won't interrupt your work. Powered by common AAA batteries, it's easy to keep running on any job site.

Ideal use cases

• Voltage testing in hospitals, libraries, and other quiet zones
• Verifying absence of voltage before maintenance (lockout/tagout)
• Checking phase rotation and polarity in three-phase systems
• Testing RCDs (residual current devices) for proper tripping
• Continuity and resistance checks on wiring and components
• Outdoor installations where IP64 protection is required

Good to know

The VC-55 S is a professional-grade instrument built for daily use. It comes with a manual and requires two AAA batteries (not included). The tester's response time of under half a second ensures quick readings, and the wide operating temperature range covers most working conditions. For electricians who prefer visual feedback over audible alerts, this silent voltage tester is a dependable choice that doesn't compromise on functionality.