Refillable pH sensor 640S-1 1 piece

This is a sensor for the handheld pH meter SK-620PHⅡ and the tabletop pH meter SK-650PH. The internal solution can be refilled. (No. 6426-00 Refill solution 35ml 3-pack) Specifications: Refillable sensor Measurement range (pH/℃): 2-13/0-50 Accuracy: ±0.03 pH/0.5°C Sensor: pH glass electrode, Temperature: Thermistor Liquid junction/sleeve type Internal liquid 3.3mol/L KCl (refillable) Material: Electrode support tube: glass (lead-free), cord: PVC Dimensions: Sensor part/approx. φ12L156mm, cord length/approx. 1m Mass: Approx. 78g Code number: 6424-00 *Depending on the substance being measured, such as organic solvents, oil, strong acids, strong alkalis, and surfactants, the glass electrode may deteriorate and its lifespan may be significantly shortened.