I have an air guage question...

So i have this digital guage and for whatever reason it beeps all the time.  It starts flashing either fr, or rl bag or whatever, and has two dashes and just beeps.  i try adjusting the pressure in whatever bag its related too and that fixes it for a sec then beeps again.  im not sure the brand.  but does anyone know how to make it stop or maybe turn the sound off.  any ideas help me out thanks
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