Review on 🚗 BELEY Automotive Spark Plug Tester with Protective Cover – Dual Holes Ignition Plugs System Analyzer for 12v Gasoline Vehicles (Spark Tester with Cover) by William Stewart

Never heard of this product. I saw this while looking for a built in tester and for the price I thought I'd give it a try. So far I've only played with it, trying new and old plugs, standard and platinum plugs. It is interesting to see the difference in platinum candles. I have found that shorter plugs (for lawn equipment) are not adequate to make contact inside the tester. But in general I think it will be useful for home use.