Digital Magnetic And Residual Field Indicator (Gauss Meter) To Measure Magnetic Residualfield Strength In Tested Object; Portable And Handy; Measuring Range 0.1 Gauss To 199 Gauss. The Unitcan Be Op Erated On Both Side Ac & Dc Supply With Chargeable Battery, Lcd Display, Resolution 0.1 Gausswith Calibrat Ion Certificate Traceable To Nabl. [ Warranty Period: 30 Months After The Date Of Delivery ] ]