Feature: 1. Compatible: It is sturdy and durable, economical and practical, fully meeting the needs of various industry tests, and suitable for various PH Q9 BNC plugs. 2. High Accuracy: This PH electrode is a high accuracy composite laboratory electrode with accurate measurement and wide measuring range. 3. Waterproof: This PH meter BNC connector has excellent waterproof and field applicability, and can measure the PH value of various liquids. 4. Replacement Parts: This probe can be used as a replacement part of the PH meter to replace the damaged original parts and prolong the service life. 5. Simple Operation: The probe is durable, convenient, fast and accurate, easy to operate, convenient to use, safe and secure. Specification: Item Type: PH Probe Sensor Material: ABS Gross Weight: 112g / 4.0oz ORP Measurement Range: 0.00-14.00PH Resolution: 0.01PH Accuracy: ±0.01PH Operating Temperature: 0-50℃ Probe Diameter: Approx.1.2cm / 0.5in Electrode Length: Approx.14.8cm / 5.8in Connection: 50OHM BNC socket Scope of Application: laboratory, domestic water, fish tank, swimming pool, etc. Package List: 1 x PH Electrode