Features: Achieve ±0.01 accuracy with the E 201 C electrode probes's advanced glass membranes technology, ideal for laboratory grade measurements and industrial applications requiring high accuracy monitoring. build with corrosion resistant PC/plastic housing, this strong electrode withstands prolonged exposure to acidic/alkaline solution, offering long than standard probes. Essential for laboratory technicians, substance engineers, and wastewater treatments professional needing reliable data in harsh industrial environment. Perfect for immediate trackings in laboratory experiments, production line quality control, or wastewater management systems requiring rapid, stable readings. Features a universal interfaces for smooth compatibility with most meter, pair with a 10 second response time to streamlines workflows efficiency. Specifications: Material: Plastic + PC Length: about 155mm/6.1in performances Features: ranges: 0～14pH Temperature ranges: 0~60℃ 0 potential: 7±0.5pH (25℃) percentage theoretical slope: ≥98.5% (25℃) Internal resistance: ≤250MΩ (25℃) Response time: ≤1min Package Includes: 1xPH Electrode Sensors note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.