Tender For analog earth tester hand operated type, 4 terminal, insulation resistance range:0-20 ohms with testing kit similar to cie mode no: cie/222, conforming iss:2992/1987 or latest make: cie, waco,sakowa and kyritsu only. calibration certificates from nabl accredited lab to be given at the time of supply. [ warranty period: 30 months after the date of delivery ]