Instant windspeed measurement with ‘max’ speed reached displayed

Features common to all 4 models:

• Features
• Wind speed units: km/h, m/s
• Maximum reading: 150 km/h, 42 m/s, 81 knots, 97 mph, 138 fps
• Backlight
• Stainless steel back
• Replaceable lithium battery
• Operation temperature: -20°C to 70°C (-4°F to 158°F)
• Accuracy according to Swiss Standards
• Auto-off after 1 minute
• Weatherproof