Here's something you may not have thought about before: how do you test the efficacy of an air conditioner? Air conditioners are surprisingly complex pieces of technology, as they need to carefully ...

A refrigerant gauge set that measures some common retrofit refrigerants is available. The set of large, 3-1/8-inch, red and blue dry manifold gauges is specifically calibrated for monitoring R-417A, R ...

A solar-powered digital refrigerant gauge set measures several common refrigerants. The set consists of solar/light powered LCD digital manifold gauges. According to the manufacturer, no battery to ...