Indicators & Sensors are considered as integral parts of production, calibration and testing procedures in different industries. Featured with pneumatically isolated design, this array of products has pneumatically isolated design for improving its sensitivity level. Based on their design and mechanism, these Indicators & Sensors are also used to regulate ice thickness level surrounding chilling tubes. With having electronic controller, these automatically stop electric supply to solenoid valve or compressor of cooling units when ice thickness meets pre programmed parameters. Quality of these products has been verified on the basis of their sensitivity range, operating method, service life, maintenance technique, precision level and diameter. These are offered in hand held and table mounted design options to suit specific application needs.