The Thermo Fisher Scientific ORION Needle Tip Micro pH Electrode (Model 9863BN) is designed for precise pH measurement in small samples and confined spaces. Its combination design ensures quick and accurate readings, making it ideal for applications in laboratories, environmental testing, and food quality control. The needle tip allows for easy insertion into tiny volumes, while the durable construction ensures reliability and longevity. With a wide temperature range and excellent response time, this electrode is a must-have for professionals seeking accuracy and efficiency in their pH testing.