Power jack The instrument is powered by a 3.7V lithium direct-chargeable battery and can be connected to an external power adapter to make measurement worry-free Button design The instrument buttons are humanized, comfortable to operate, and the numbers are clear Upper and lower limit alarms The instrument has upper and lower limit alarms to make measurement more convenient Equipped with a variety of connectors The standard configuration is a variety of connectors for different measurement needs The digital display push-pull force gauge is a mechanical measuring instrument used for push and pull tests, with upper and lower limit alarms, peak hold, acceleration setting, factory reset, etc, Manufacturer: LPUHHDA