Santronics 3115 AC Voltage Sensor — Compact Non-Contact Detector, 50-1000 VAC, CAT IV, Made in USA

Compact, ready-to-use voltage sensing in your pocket

Meet the Santronics 3115 AC Voltage Sensor — a compact, non-contact voltage detector designed for electricians who value portability without compromising safety or reliability. It detects live voltage across a broad 50–1000 VAC range and carries a CAT IV rating, all housed in a durable, USA-made polycarbonate body. The result is a tool you can trust on busy job sites, yet small enough to disappear into a pocket or tool pouch between uses.

This pen-sized detector prioritizes a quiet work environment. When you activate it, you’ll notice the absence of audible beeps, making it well suited for offices, clinics, or educational facilities where minimizing noise matters. The combination of a slim profile and non-contact sensing means you can perform essential voltage checks without exposing yourself to direct contact with live components.

Key benefits at a glance

• Pocket-sized design for effortless carry and quick access on the job
• Silent operation that keeps workspaces undisturbed in quiet environments
• Non-contact sensing provides voltage presence information without direct contact
• Wide detection range of 50–1000 VAC suitable for typical residential and industrial tasks
• Durable high-impact polycarbonate housing built to endure tough work conditions
• Always ready to use in a compact, pen-sized form factor
• Made in the USA with a 1-year warranty for added assurance

Real-world use cases illustrate how this detector can fit into daily workflows. In offices, laboratories, and healthcare facilities, the quiet operation helps preserve the environment while enabling quick checks. For residential technicians, the broad voltage range supports a variety of wiring and outlet investigations. On busy service calls or industrial maintenance tasks, the device remains portable enough to accompany you through multiple sites, yet sturdy enough to stand up to demanding conditions.

• Office and healthcare settings where quiet operation matters
• Residential wiring checks and lighting installations
• Industrial equipment maintenance and panel inspections
• Outlets and circuits checks without direct contact for added safety