Description FEATURES Wider menu due to dual configuration in single model: Na, K & Cl or Na, K & Li. Saves money due to long life maintenance-free electrode. Accurate, precise results & error-free analysis ensured by unique air detector. Fast turnaround time by reporting results in 49 Seconds. Operational ease due to adjustable sampling arm provides access to tube or cup. Easy & fast operation with help of direct function Keys on full Scale Keyboard.