Due to the wide use of gearmotor systems in industry. many diagnostic techniques have been developed/employed to prevent their failures. An insufficient lubrication of gearboxes of these machines could shorten their life and lead to catastrophic failures and losses. making it important to ensure a required lubrication level. https://www.spidertattooz.com/SQB-PROTON-QUAD-M4-MAG-POUCH-INSERT-SMOKE-GREY/