Solar Impulse Foundation on X: "#Si2's pilot climbs up to the height of Mt. Everest, 8,500 m (28,000 ft), in an unpressurized cabin! http://t.co/JTRgHvbJEb" / X
![HTM-100F-ATEX - ATEX-Certified Hand-Held Mechanical Tach, complete Kit (10-10,000 rpm/5-5,000 ft/min) w/ 6" circumference surface speed wheel - A3-5110 HTM-100F-ATEX - ATEX-Certified Hand-Held Mechanical Tach, complete Kit (10-10,000 rpm/5-5,000 ft/min) w/ 6" circumference surface speed wheel - A3-5110](https://www.checkline.com/res/products/126862/htm-atex-intrinsically-safe-tachometer.jpg)
HTM-100F-ATEX - ATEX-Certified Hand-Held Mechanical Tach, complete Kit (10-10,000 rpm/5-5,000 ft/min) w/ 6" circumference surface speed wheel - A3-5110
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