Function | Range(HT-380) | Range(HT-81) | resolution | Accuracy |
Ft/min | 196~5900ft/min | 59~5900ft/min | 1ft/min | ±(3%+40ft/min) |
m/s | 1.0~30.00m/s | 0.3~30.00m/s | 0.01m/s | ±(3%+0.20m/s) |
Km/h | 3.6~108.0km/h | 1.1~108.0km/h | 0.1km/s | ±(3%+0.8km/h) |
Mile / hour | 2.24~67.0mph | 0.67~67.0mph | 0.1mph | ±(3%+0.4mph) |
Nautical mile / hour | 1.94~58.0knots | 0.6~58.0knots | 0.1knots | ±(3%+0.4knots) |
Resolution | 0.1℃(0.1℉) | |||
Accuracy | ±4.0℉(2℃) | |||
Operating temperature | 0℃-50℃(32℉ to 122℉) | |||
Size | 245×55×33mm(HT-380)/195×58×35mm(HT-81) | |||
Weight | Weight:205g(HT-380)/150g(HT-81) | |||
Accessories | Accessories:9V battery,manual,black bag and blister card |