Sensor tip: for refrigerant leak detectors model HD2 and Japanese origin

Sensor tip: for refrigerant leak detectors model HD2 and Japanese origin detectors of other brands.

If your old refrigerant leak detector stops working, or is getting less sensitive because of aging sensor tip, you may need to change it to rejuvenate it! The sensor tip is based on electro-chemical activity of the sensor material in it. Using your detector over time will consume the chemicals in it and make the sensor tip inactive or getting 'poisoned' by over exposure. In that case, replacing the tip will make the detector like new again.

these tip fits and replaces VIOT HD2 heated diode halogel leak detecor. this tip is made in Japan and supplied by VIOT.
one sensor in a package