If you want this tool to detect whether the power is off or on, I find it satisfactory. If you intend to use it to determine which cable is powered by multiple, you may be disappointed. The sensitivity of this tool is high for safety reasons, but too sensitive to identify individual wires in electrical boxes or multiple Romex conductors or other cables. On a recent use, when I was fixing the wiring of a janitor's three-position switch, I couldn't tell which wire was getting power from the attendant switch and which was the lamp load. Even slowly approaching each wire/circuit did not help identify the individual wire with actual power. I had to use a meter to detect the wire that is live and not the ones that have induced voltage. I've had other performance issues where the hobbyist miswired the outlets, sometimes putting the black power cord in the neutral slot of the 120V outlet. In those cases, about 50% of the outlets showed power on all circuits - not helpful. Certainly a safe tool for measuring performance, but not a substitute for more sophisticated measuring devices.
Neoteck Voltage Tester/Non Contact Voltage Tester 12-1000V/48-1000V Adjustable Sensitivity AC Voltage Detector Tester Pen Live/Null Wire Tester With LCD Display Buzzer Alarm Wire Breakpoint Finder
27 Review
β‘οΈ Fluke T5600 Electrical Voltage, Continuity, and Current Tester: Accurate and Reliable Electrical Testing Solution
9 Review
π‘ AmazonCommercial LCD Display Non-contact Voltage Tester for Working, Double Mould, Flashlight
10 Review
π Klein Tools NCVT2PKIT: Dual Range Non-Contact Voltage and Receptacle Tester for Versatile Applications
9 Review
β‘οΈ Sunpark LC-12014T (1) FC12T9 32W Circline (1) 2D 38W (1) FC16T9 40W Circline (1) FC9T9 30W Circline Lamp Compact Electronic Fluorescent Ballast with Circline Lamp Plug 120V
7 Review
Robertson Worldwide ISL432T8HEMV AH 3P20160 120-277V 50-60Hz High Power Factor 4 F32T8 Linear Lamp Fluorescent eBallast
6 Review
Fulham WorkHorse WH2-120-C Adaptable Ballast - 2 Pack
3 Review
π‘ High-Quality Advance ICN-4P32-SC Electronic Fluorescent Ballast: Ideal for 4 Lamps, 32W T8, 120/277V
3 Review