Catalog number: Z-222 Features: ●This is a checker set that is convenient for checking the answers to practice for the electrician skills test. ●By using a battery to run electricity, you can check whether the circuit is set up correctly. ●Since it is equipped with a protection circuit, it prevents sudden discharge and heat generation even if it is accidentally shorted. ●Comes with a handbook containing double-line diagrams for 13 candidate questions. Specifications: ●Set contents (pieces): 6 Set contents/accessories: ●Checker (for outlets, lamp receptacles, ceiling hooks, and omitted installation areas) ●Battery box ●Skill test preparation handbook ●2 x AA batteries
