The TIF TIFZX-KIT Heated Pentode Refrigerant Detector Kit uses proven heated-pentode technology with an improved grip and easy-to-read display. The design of the TIFZX eliminates false alarms from moisture, solvents and cleaners. Its improved, true mechanical pump allows for instant response and clearing. It features heated Pentode sensor technology, tri-color visual leak size indicator, tactile keypad controls with one-touch reset and adjustable sensitivity, true mechanical pump provides instant response and clearing, battery test function, sensor failure indication, and rechargeable batteries. uses proven heated-pentode technology with an improved grip and easy-to-read display. The design of the TIF TIFZX-KIT eliminates false alarms from moisture, solvents and cleaners. An improved, true mechanical pump allows for instant response and clearing.