Brand N/A Model PH-009 Quantity 1 Color Yellow + Black Material ABS Features High accuracy green backlight auto temperature compensation LCD Display 0.8" Special Functions 4-digit display pen style design for easy operation and carrying; High stability. Application Measurement of liquid acidity Other Measurement range: 1.00~14.00pH; Resolution: 0.01pH; Accuracy: +/-0.1pH; Powered by 3 x AG13 batteries (included); Temperature compensation: 0~50'C; Working temperature: 0~50'C. Packing List 1 x Acidity tester 1 x English user manual 1 x Screwdriver 2 x pH buffer powder