ST-3300 Radio frequency moisture measurement transmitter The ST 3300 is the next generation of process moisture measurement and control. Sensortech’s patented radio frequency measurement principle enhanced by all-digital phase lock loop signal conditioning presents a radically improved standard of resolution and stability. Signal processing capabilities are integrated into the Transmitter Electronics. The Transmitter Electronics interfaces directly to your PC, PLC, HMI, or other preferred platform. User-friendly configuration software manages the operation of the ST 3300 through your PC. The ST 3300 advances Sensortech’s patented phase lock loop dielectric measurement technique. Digital conditioning provides a radically improved standard of resolution and stability. Additionally, internally switched standards offer long-term stability while two-term ratio measurements eliminate the influence of density in many applications.