Includes: Power Probe 4, ECT3000 Transmitter, ECT3000 Receiver, Power Probe Tip, 3 Light Bulb Adapters, Universal Adapter, Alligator Clip Adapter, Blade Probe Adapter, Back Probe Adapter, Small Piercing Probe, Large Piering Probe, Battery Clip set, Battery Clip set for the PP4, 3ft Lead, Self-resetting Circuit Breaker, AAA Batteries.