Thông tin sản phẩm Hãng sản xuất: SEW - Đài Loan Model: 2120 ER Capable of measuring earth voltage. 2mA measuring current permits eath resistance to test without tripping earth leakage current breakers in the circuit. Test leads are supplied as standard accessories for simplified two-wire measuring system. 0 Ohm adjustment. Data hold function. Battery operated. Battery life indicator. Designed to meet IEC/EN 61010-1, IEC 61557-5 CAT III 200V. Calibration performed with supplied test leads.