Thy-18f oil quality analyzer is a portable instrument which measures changes of contamination and electro-chemical which occur in lubricant. by comparing data obtained from used oil and new oil of same brand, the oil quality analyzer can check the
Supports working with no server: report real-time location,
time and speed manually input latitude-&-longitude for target's geographical-informations multiple-alert output: low battery + location; emergency alter + location geofence:
