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It can help you not exceed the limit of speed .Speed limiter with sound and visual alarm.
Super simple GPS speedometer
OdometerHUD. Two mirroring modes for best uses on any tilt just swip up or down.
dBA Meter app well calibrated with professional noise meter tool OKTAVA 110A-PRO. Measure sound SPL level/noise:
-Current average SPL level
-Peak SPL level
-Average maximum SPL level
-Absolute...