A high resolution liquid level monitoring device using pulsating sensor based instrument is presented. The technique involves precise measurement of h y drostatic pressure exerted b y the process liquid using a high sensitive pulsating t y pe differential pressure sensor and correlating it to the liquid level.A digital approach has been explored to monitor the liquid level in a reservoir, sensitivel y up to 1 m range with an accurac y of -1 %. The measurement s y stem resembles conventional bubbler method, but the process of bubbling is totall y avoided and makes the method eas y deplo y able. A protot y pe level measurement s y stem is designed for 1 meter tank and tested for its performance.Index Terms-liquid level measurement, h y drostatic principle, pulsating sensor