 			responseMessage += F("#");
 			saveSettings();
 		} else {
-			responseMessage += F("ERROR: Invalid argument - Must be between 0.16 and 0.50!#");
+			responseMessage += F("ERROR: Invalid argument - Must be between 0.21 and 0.40!#");
 		}
 		outputStream->println(responseMessage);
 	} else if (message.startsWith(F("DEFAULT")) || message.startsWith(F("default"))) {

		outputStream->println("@");
		settings.printSettings(outputStream);
		outputStream->println("#");
	} else if (message.startsWith(F("SOUND")) || message.startsWith(F("sound"))) {
		String state = message.substring(5);
		state.trim();

		outputStream->println(responseMessage);
	} else if (message.startsWith(F("PRESSURE")) || message.startsWith(F("pressure"))) {
		float seaLevelPressure = message.substring(8).toFloat();
		if (980 <= seaLevelPressure && seaLevelPressure <= 1100) {
			seaLevelPressureSetting = seaLevelPressure;
			responseMessage += F("PRESSURE - ");
			responseMessage += seaLevelPressureSetting;
			responseMessage += F("#");
			saveSettings();
		} else {
			responseMessage += F("ERROR: Invalid argument - Must be between 980 and 1100 millibar!#");
		}
		outputStream->println(responseMessage);
	} else if (message.startsWith(F("OXYGEN")) || message.startsWith(F("oxygen"))) {
