STP-02-a Digital pH Meter is having two point calibration at 4 and 7 pH value. It has manual temperature compensation . It has two meter wire cable with three pin socket. It is bench top model used in laboratory purpose Technical Specification • PH Range : 0 to 14.00 • Resolution : 0.01 • Accuracy : ±0.02 • Temperature range : 0 to 100°C • Calibration User selectable: Automatic calibration at 4, 7, 9 pH • Power : 9 VDC Adaptors • Typical Size (l x w x d) : 175 x 75 x 35mm • Weight : 250g Accessory • Electrode stand • pH Electrode