This is the ORP meter you see Bob Gridelli use in the Pat Boone DVD.
Without question this is the most reliable scientific ORP meter available. The new probe design provides faster more accurate readings. The only way we sell this meter is in a complete kit with everything you need for it to operate properly and give you proper readings when you're doing a demo. There is nothing more frustrating that trying to do a demo, explaining how our Kangen Water has a high negative ORP, and you meter is acting up. I urge you to spend a few extra bucks to get the best. This is the best.