Odometer BC-G-ODO, the best quality and the best price will be offered. ISO9001 Certificated Boce BC-G-ODO Odometer 1, The way of connection.Red: working power(positive)Black: working power(negative)Green: odo-sensor inputBlue: power output(supply to odo-sensor) Yellow: odo-cathode White: background light power(positive) 2,The technic specificationthe scope of measurement: 0-140km/hvoltage: 12V ...