screen cage humidity for veilds

[peterm15]

i have a veild in a 150 gal all screen enclosure... hes still only small so i only have in a 50 gal portion... i mist 3-4 times a day and i have a hame made doubble dripper system. the substrate is always moist and the moss is to...im just a little worried that that im not keepin up proper humidity... how often do chams shed and how long does it usually take.. and is covering a couple of sides the only way to keep the humidity up.... im gonna replace my humidity gauge cause i know its not working.. it hasent moved.. since i got it...