Kistler Instrument's Type 4021A melt pressure measuring chain features a 0.5-in (12.7-mm) 20 UNF thread, designed to simultaneously measure short-duration pressure peaks and temperatures. Type 4021A combines a melt pressure sensor comprised of a stable, high-temperature piezoresistive silicon sensing element with an abrasion-resistant stainless steel diaphragm and an integral amplifier, designed to match the sensor. The sensor is offered in multiple lengths and angular configurations, in pressure measurement ranges of 0 to 29,000 psi (0 to 2000 bar) and temperature ranges of 32 to 662°F (0 to 350°C), with a choice of cable lengths. Type 4021A can be mounted directly in the flow of material, eliminating the time lag associated with indirect measurement systems and enabling direct real-time measurement of the process parameters that determine product quality. The sensor is suitable for use in short-cycle process monitoring environments.