Round Digital Hygrometer with Adjustment Feature - Never wonder if your digital hygrometer is accurate. The HygroSet II is the first digital hygrometer of its kind capable of being adjusted after calibration. Each click of the adjustment knob changes the humidity display (+ / -) by 1-percent.Button...

Two-year warranty specifications: display: LED measure voltage: 12-24v interface type: anode and cathode material: environmental protection engineering plastic shell range of application: cars, motorcycles and other universal models features: the state of your battery between full charged and discha...