Durable and easy to install. Fine workmanship and perfect style. Specifications: Model Number: PH-98108 & PH-98106 Measuring range: 0.00~14.00pH Accuracy: 0.2PH 0.1PH Resolution: 0.01PH Operating Temperature : 0C~50C Automatic Temperature Compensation: 0C~50C Automatic Temperature Compensation: 0C~50C Electrode: For cheese & milk testing Power Supply: 3 x 1.5V(AG13) (Not inculde) Model: PH-98106 1.Automatic Temperature Compensation: 0-50 2.Battery Type: 3 x 1.5V(AG13) 3.Environment: 0-50; RH Less than 95% Material: plastic colour: red Package Contents: 1 x PH-98106 pH meter 1 x PH-98108 pH meter 1 x screwdriver Only 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.