ECHOMAX XCT-8 TRANSDUCER HIGH-FREQUENCY ULTRASONIC TRANSDUCER DESIGNED FOR A WIDE VARIETY OF LIQUID AND SOLID APPLICATIONS, FOR USE WITH APPROVED CONTROLLERS. INCLUDES INTEGRAL TEMPERATURE SENSOR. AMBIENT TEMPERATURES UP TO +145 C MEASURING RANGE: MIN. 0.6M (2 FT), MAX. 8M (26 FT)