1. Thermatel® TD1/TD2 Flow/Level/Interface Switches

... One is the reference and the second is heated to a temperature above the process temperature. The electronics detect the temperature difference between the two elements. The temperature difference is greatest ...

2. Hamilton Visiferm DO Sensors

... with Visiferm: at low oxygen concentrations the greatest amount of red light is emitted. Thus the function of the sensor is easily monitored during trace measurement. Operational Reliability Through Simple ...