Triplett ET330 Digital Clamp Meter, 600A AC/DC, True RMS

Reduce downtime and increase jobsite safety with the Triplett ET330 non-contact voltage tester. Designed for electricians and security installers, this voltage tester quickly verifies AC presence before you touch a circuit — helping you avoid dangerous live contacts during installation and maintenance. The ET330’s high-sensitivity dual ranges (24–1000V and 90–1000V) make it effective at finding low-voltage wiring used in doorbell circuits, thermostats and CCTV/surveillance camera power, while audible and visual alarms provide clear indicators even in noisy environments. A built-in flashlight improves visibility in panels and tight enclosures, and the CAT IV 1000V safety rating gives added protection when testing distribution and service-level circuits. Compact and battery-powered (includes 2 AAA batteries) for easy carry and rapid deployment, the ET330 meets cETLus and CE standards for reliable field performance. Ideal for security, monitoring and general electrical troubleshooting—add the Triplett ET330 to your toolkit for safer, faster voltage checks on every job.

• Quickly verifies presence of AC voltage to help technicians work safely and avoid unnecessary circuit contact
• High-sensitivity dual ranges (24–1000V and 90–1000V) detect low-voltage wiring used in doorbells, thermostats and camera power
• Audible and visual alarms plus built-in flashlight for fast diagnostics in noisy or dim environments
• CAT IV 1000V safety rating for confidence when testing service-level and distribution circuits
• Compact, battery-powered design (includes 2 AAA batteries) ideal for field service, security and surveillance installation work