Fixes #2631

radio/src/telemetry/telemetry.cpp

@@ -527,6 +527,10 @@ void TelemetrySensor::init(const char * label, uint8_t unit, uint8_t prec)
   memclear(this->label, TELEM_LABEL_LEN);
   strncpy(this->label, label, TELEM_LABEL_LEN);
   this->unit = unit;
+  if (prec > 1 && (IS_DISTANCE_UNIT(unit) || IS_SPEED_UNIT(unit))) {
+    // 2 digits precision is not needed here
+    prec = 1;
+  }
   this->prec = prec;
 }