The M101B Rugged Tablet put through a series of rigorous reliability tests at Winmate’s lab in Taipei, including temperature & humidity, tumbling, vibration (MIL-STD-810G), drop (4ft to a concrete floor) (MIL-STD-810G), ESD, EMC (EN55022), water resistance, and sunlight readibility. Rugged tablets are one of Winmate’s most popular products.