Kestrel® 3500 Pocket Weather Meter
Kestrel 3500 Pocket Weather Meter
Providing a wealth of weather information, the Kestrel 3500 measures barometric pressure, altitude, temperature, humidity, wind speed, wind chill, dew point, wet bulb, and heat index. Measure current, maximum, and average wind speed in meters per second, kilometers per hour, miles per hour, feet per minute, knots, or Beaufort Force. Temperature, wind chill, heat stress, and dew point are shown in °C or °F. Relative humidity is displayed as a percentage. Pressure is measured in hPa or inHg. Altitude is displayed in feet or meters. Measurements are shown on a large backlit display. An innovative thermally-adjusted humidity sensor provides stable, accurate measurements even during abrupt condition changes. Other features include a real-time clock, hold function, quick response external thermistor, a high precision pressure sensor, and a user-replaceable impeller. Housed in a waterproof body that floats, the meter features a protective cover with sure-grip overmolding. Lanyard and battery included.
Minimum wind speed: 0.7 mph (0.6 knots, 1 km/h, 0.3 m/s, or 59 fpm). Maximum wind speed: 89 mph (78 knots, 144 km/h, 40 m/s, or 7,877 fpm). Wind speed accuracy: ±3%. Update: 1 second. Temperature, wind chill, heat stress, and dew point range: -20°F to +158°F (-29°C to +70°C). Temperature, wind chill, heat stress, and dew point accuracy: ±2°F (±1°C). Temperature resolution: ±0.1°F (±0.1°C). Wind chill factor resolution: ±1°C. Relative humidity range: 5% to 95%. Relative humidity accuracy: ±3% from 5% to 95%. Barometric pressure range: 870.0 hPa to 1,080.0 hPa (25.70 inHg to 31.90 inHg). Barometric pressure accuracy: ±3hPa. Altitude range: -1,500 ft. to 30,000 ft. (-500 m to 9,000 m). Altitude accuracy: ±30 meters (at standard atmospheric conditions). Operating temperature: 5°F to +122°F (-15°C to +50°C). Storage temperature range: -4°F to +176°F (-20°C to +80°C). Impeller: 1” diameter, sapphire bearings, lightweight. Temperature sensor: hermetically sealed precision thermistor. Humidity sensor: solid state silicon capacitive sensor. Pressure sensor: monolithic silicon piezoreisitive sensor. Display: reflective 3-1/2 digit backlit LCD. Sealing: electronics enclosure IP67 water resistant to 3 ft. Floats. Battery: user-replaceable CR2032 coin cell battery (included) with a typical life of 400 hours.