Tenders for Supply of Magnetic Field Indicator Or Magnetometer Or Gauss Meter Analog Type With 0 Gauss To 50 Gauss Re Ading Capacity, With +/- 10% Accuracy With Nabl/Oem Calibration Certificate. Note- Firm To Provide Nabl/Oe M Calibration Certificates. Warranty Period: 30 Months After The Date Of Delivery