Compact and rugged, this oscilloscope is perfect for industrial electrical and electro-mechanical equipment troubleshooting and servicing programs.Gi?i m?i (bao g?m t?t c? gi?i nào có s? thay ??i, c?p nh?t m?i ho?c ?i?u ch?nh)This item includes a Lithium-ion battery. Will not combine with solid waste stream. Spent batteries need to be disposed of