This is a test of the Kaiweets HT100s non contact voltage tester. 5% off code: K8KMWHTM Date of expiry: 2024-5-31 Buy from: https://www.amazon.com/dp/B0C2CNC624 I was not compensated for this review. I did receive the tool without charge. This video is part of the heating and cooling series of training videos made to accompany my websites: www.graycoolingman.com and www.grayfurnaceman.com to pass on what I have learned in many years of service and repair. If you have suggestions or comments they are welcome. If you are a homeowner looking to repair your own appliance, understand that the voltages can be lethal, the fuels are highly flammable and high pressures are used. Know your limits.