Provides instant measurement & simple operation: Enables quick and straightforward pH measurements, ideal for users of all skill levels50 Ohm BNC type connector.Replaceable pH electrode is easy to calibrate.It is very reliable, stable, and portable: Guarantees consistent and dependable pH measurements, suitable for both stationary and on-the-go applications.Longer electrode body and 300cm (E-312) , 200cm (E-314) extra long cable.Measuring range: 0-14PHMeasuring temperature: 5-60Zero potential: 70.5PH (25)Percentage theoretical slope: (PTS) 98.5% (25)Internal resistance: 250M (25)Alkali error: 0.2PH (1mol/L) Na+, PH14) (25)Response time: 1 minute(The product appearance and printed words may vary depending on the batch, but this does not affect use)Color: As shownMaterial: MetalPackage Contents:1 x PH Sensor ProbeOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.