The genuine Herz 747TZ4 (1747004) room temperature controller is designed for precise temperature regulation in heating, ventilation, and air conditioning systems. This mechanical controller features a 4-meter capillary tube remote sensor, allowing flexible placement. It offers a temperature setting range of 5-30°C and includes an integrated ON/OFF switch for convenient operation. The sensor has a diameter of 6.5 mm and a length of 110 mm, ensuring accurate temperature detection. With a switching differential of approximately 0.5 K and a maximum ambient temperature of 50°C, this controller provides reliable performance. It is rated with protection class IP 30.