Manufacturer : XZT Fluid Technology Ltd. Again short press "unit",then quit the records show. ZERO button: pressure Zero button continuously for 3 seconds for zero clearing; LIGHT button: press Light button shortly to turn on or turn off the light,will be closed automatically after 70 seconds.
easy to use....great size for display...and your not limited to only one brand of equipment.....by being able to change from psi to bar give you a wider variety of working on equipment.