The Heavy-Duty Spear Tip pH Electrode is designed for use with the DPH230SD and WK2017SD models from General Tools. This electrode features a robust spear tip design, ideal for penetrating tough surfaces and providing accurate pH readings in various applications. Constructed with durable materials, it ensures longevity and reliability in the field. The electrode is compatible with standard pH meters and is suitable for both laboratory and field use, making it a versatile tool for professionals. Its compact size allows for easy handling and storage.