ZP – Generation 2 solid state pH sensor by Martin Peacock | Apr 6, 2020 | Uncategorized ZP has launched its Gen 2 solid state ph senos, where the ph sensing element is 2 mm in diameter. FollowFollowFollow Read more Find out more Nitrate Potassium Calcium pH Ammonium Phosphate Wearables Services FoodSense Biosensors Contact Products