By attaching the MK51 measuring head, the EFM 51 can be used for the verification measurement of body tension (walk-on test) in accordance with IEC 61340-4-5. Measuring head MK51 is specially adjusted to the EFM 51 device - The positive or negative ´PEAK´´ value of the measured body voltage is displayed - 1 piece EFM 51 with measuring head MK51 in conductive case - 1 piece conductive stand - 1 piece Teflon-insulated measuring lead - 1 piece hand electrode - 1 piece plug-in charger for 9 V batteries - 1 piece additional 9 V battery´