.Test oil range: DOT3, DOT4, DOT5.1,ENV4,ENV6

.Oil state test: < 0.1% indicates high purity; 

                       < 1% indicates good condition; 

                       <2.5 indicates that the state is acceptable; 

                       >3%~4% indicates that brake oil can be replaced color LCD display

.Alarm function

.Auto power off function.( 6 minutes)

.Battery：9V 6F32 battery

.Battery low voltage prompt function

.Using ambient temperature:：-10℃-50℃

.Metal tube length：=210mm