Screening tool

Abstract

In one aspect, a screening tool for detecting whether a predetermined type of liquid is contained in a container includes a sensor arm subsystem in communication with a processing subsystem. The processing subsystem includes a processor disposed in a housing, an AC / DC converter electrically coupled to the processor, and ultrasonic components electrically coupled to the processor and the AC / DC converter. The sensor arm subsystem includes a sensor electrically coupled to the ultrasonic components, a temperature sensor electrically coupled to the processor, and an operator interface electrically couple to the processor.