Check the listing for details. Extech ExStik PH100 Waterproof pH Meter With Box Opened Box. Condition: New – Open box. Listed at 98.00 USD. This Extech ExStik PH100 Waterproof pH Meter is a reliable tool for measuring pH levels in various applications. With a pH range of 0.00 to 14.00, it is perfect for use in industries such as food and beverage, water treatment, and pharmaceuticals. The meter is manufactured by Extech, a trusted brand known for producing high-quality test meters and detectors. This pH meter is ideal for professionals who require accurate pH measurements in their work. Its waterproof design makes it durable and long-lasting, while its compact size makes it easy to carry and use on-the-go. The meter comes with a calibration solution and batteries included, making it ready for use right out of the box. Whether you're in need of a pH meter for personal or professional use, the Extech ExStik PH100 is an excellent choice. Might’ve been tested / opened for a while