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Dwyer Series PWM Pocket Wind Meter

±3% Accuracy, Selectable Units, Waterproof, Compact
 

Measure wind speed accurately with the Model PWM1 Pocket Wind Meter. The rotating vane anemometer is constructed with a light weight, anodized aluminum impeller which spins on high precision jewel bearings. The impeller assembly is easily replaceable in the event of damage or wear. Wind speed, average wind speed and maximum wind speed can quickly be viewed on the 2-1/2 digit LCD display in user selectable measuring units. The unit also features automatic shut-off 30 minutes after the last key is pressed. The compact, rugged anemometer is waterproof and rated NEMA 6 (IP67). The unit will float if accidentally dropped in water. Model PWM1 includes a slip-on hard case to protect the display and impeller, 20" (0.5 m) lanyard, and instruction manual.

Measure wind speed, temperature and wind chill with the Model PWM2 Pocket Thermo-Anemometer. The rotating vane anemometer is constructed with a light weight, anodized aluminum impeller which spins on high precision jewel bearings. The impeller assembly is easily replaceable in the event of damage or wear. Wind speed, average wind speed, maximum wind speed, temperature, and wind chill can quickly be viewed on the 3-1/2 digit LCD in user selectable measuring units. The unit also features automatic shut-off 30 minutes after the last key is pressed. The compact, rugged anemometer is waterproof and rated NEMA 6 (IP67). The unit will float if accidentally dropped in water. Model PWM2 includes a slip-on hard case to protect the display and impeller, 20" (0.5 m) lanyard, and instruction manual.

Measure wind speed, temperature, wind chill, heat index, and dew point with the Model PWM3 Pocket Weather Meter. Measuring modes and display units can be changed at any time. All functions are controlled with two buttons. The PWM3 displays maximum, average, and current wind speed in knots, meters per second, kilometers per hour, miles per hour, feet per minute, and Beaufort scales. Quickly select temperature measurement in °F or °C. The unit also features automatic shut-off 30 minutes after the last key is pressed. The compact, rugged weather meter is waterproof and rated NEMA 6 (IP67). The unit will float if accidentally dropped in water. Model PWM3 includes a slip-on hard case to protect the display and impeller, 20" (0.5 m) lanyard, and instruction manual.  Dimensional Information

 
SPECIFICATIONS
Air Velocity Range: 0.3 to 40 m/s; 0.7 to 89 mph; 0.6 to 78 knots; 1 to 144 km/hr; 60 to 7,830 ft/min (1990 is the max ft/min value shown on display, select different scale for higher value); 0 to 12 Beaufort.
Temperature Ranges (PWM2 and PWM3): 5 to 122°F; -15 to 50°C.
Accuracy: Wind Speed (all models): ±3% of reading or ± least significant digit, whichever is greater; Temperature (PWM2 and PWM3) and Wind Chill (PWM3): ±1°C; Humidity and Heat Index (PWM3): ±3%; Dew Point (PWM3): ±2°C.
Operating Modes: Moving 3 second average (wind speed), average since power on (AV), or maximum 3 second gust since power on (MAX), (PWM2 & PWM3) temperature, (PWM3 only) wind chill, humidity, heat index, and dew point.
Displayed Air Velocity Units: m/s; mph; knots; km/hr; ft/min; Beaufort.
Display Update: Wind speed, temperature, and wind chill: 1 second; Humidity: 1 minute.
Digit Height: 0.4" (10 mm).
Resolution: 0.1 knots, m/s, km/hr, and mph; 1 ft/min <1,999, 10 ft/min >2000 (auto-ranging); (PWM2 & PWM3) 0.1°C.
Temperature Limits: 5 to 122°F (-15 to 50°C).
Off-Axis Response: -1% at 5°, -2% at 10°, -3% at 15°.
Sustained Maximum Speed: 25 m/s; 56 mph; 49 knots; 90 km/hr; 4,930 ft/min.
Auto Shut-off: 30 minutes after last key pressed.
Power: Replaceable CR2030 (PWM1) or CR2032 (PWM2 and PWM3) coin cell battery. Battery Life: Approximately 400 hours.
Impeller: Anodized Aluminum, replaceable, 1" (25 mm) diameter.
Case: Glass-reinforced plastic, NEMA 6 (IP67).
Weight: 2.3 oz (66 g).
Agency Approval: CE.
 
ACCESSORIES

PWM15 - Replacement Impeller

 
POPULAR MODELS:
Model Number Description
 PWM1 Pocket Wind Meter
 PWM2 Pocket Thermo-Anemometer
 PWM3 Pocket Weather Meter
 
ACCESSORIES:
Model Number Description
 PWM15 Replacement Impeller
 
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