Protocontrol instruments [india] pvt ltd supplies head-mounted temperature transmitters. These are particularly applied for processing signals from rtd and thermocouples. These small and sleek transmitters are very reliable and accurate. These transmitters are loop-powered type instant programming at the site of these transmitters are possible. The company also offers special models, which have pc communication facility with the help of hart protocol. The special design of module size temperature transmitters is suitable for all common heads of temperature sensors. Total isolation between input and output is one of the salient features of these transmitters. The led indicates the sensor fault and programming mode. With the help of single on board push button switch the calibration of the transmitters is possible. These transmitters have digital technology, which enable accurate and drift free linearisation to common curves and provides better performances than traditional analog type transmitters. These are perfect for the cement, fertiliser, chemical and processing industries.