Megger manufactures printer for portable appliance tester, megger pat4. The printer offers the portable appliance testing engineer the convenience of adding a bar code label. This process helped without the need for carrying rolls of pre-printed bar code labels. Label information includes the pass date, retest date and the testing company name from the pat4. Alternatively a fail can be printed under the bar code. The printer for portable appliance tester includes rechargeable battery and mains adaptor. The salient features of the printer for portable appliance tester: