These convenient and portable pen-style pH meters are designed for fast and accurate pH measurements in any environment. Choose from three models to fit your application. Each unit includes a one-touch calibration feature at 3 points and a waterproof rating to IP65. They fit comfortably in your hand and conveniently store away in your shirt pocket.

8680—Simple to use and waterproof. Includes data hold, one-touch auto-calibration at 4, 7, and 10 pH, and auto power-off.

8681—Choose this model for professional performance, durability and a great price. Auto temperature compensation ensures good accuracy. Dual display shows temperature and pH at the same time with accuracy to ±0.2pH.

8682—Easily your best value in a pocket-sized, waterproof pH pen with high precision. Auto temperature compensation with excellent accuracy. Dual display shows temperature and pH at the same time with accuracy to ±0.05pH.