Indicating and controlling instruments are essential for accurate measurement and regulation in various industries. These instruments include temperature and humidity measurement devices and temperature scanners. Typically made from durable metal, they are designed to withstand industrial conditions. They operate within a measuring voltage range of 230 V and function at a frequency of 50 MHz, ensuring precise readings. Their design often involves robust casting techniques for reliability and longevity. Key components include high-quality sensors and electronic circuitry. Used in manufacturing, HVAC systems, and process control, these instruments are crucial for monitoring and optimizing environmental conditions, enhancing operational efficiency, and ensuring equipment longevity.