Digital pH Meter 

Product: 3 in 1 Test Pen
. Model: EZ9901
. Power: 3 x AG-13 Button Battery
. measurement accuracy: 0.01
. Range: PH: 0.00-14.00PH , TDS: 1-19999ppm , Temp: 0-60 °C / 32-140 °F
. Accuracy pH: ± 0.05pH; TEMP: 0.05 ; EC: ± 2%; TDS: ±2%
. Resolution pH: 0.01pH; EC: 1µs/cm; TDS: 1ppm
. Size: ( L x W x H): 183 x 37 x 37mm
. Weight: 90g
. Color: White