We have Solution your are Looking for,
a) Option 1 : Handheld Device Palmtec Amphibia (Thermal) / Plutonia (Impact-DotMatrix) with Firmware
b) Option 2 : Android / Java Mobile phone with APP and Bluetooth Printer IPrintMarvel Thermal or Impact DotMatrix. Palmtec's / Android Devices can take Masters from the PC / Server and then the Agent can move on to the Field and select the House no or ID and enter the Current Meter Reading. The Tariff will be available in the System and the Bill Based on the usage will be Generated and Printed out.