Cup AM4221 Lutron is a portable, digital cup style anemometer designed to accurately measure outdoor wind speed and air temperature.
Features :
- Cup vane anemometer, available for wind speed measurement, high reliability.
- Measurement range : 0.9 to 35.0 m/s.
- Wind speed unit : m/s, km/h, ft/min, knot, mile/h.
- C, F temperature measurement.
- Microprocessor circuit ensure high accuracy and provides special function and features.
- Records maximum and minimum readings with recall.
- Data hold and 100 point data logger with recall.
- Auto power off saves battery life.
- Operates from DC 1.5V [ UM4/AA ] x 4 PCs batteries.
- Low-friction ball vane wheels is accurate in both high and low velocities.
- Durable, long-lasting components, enclosed in strong, compact ABS-plastic housing.

General Specifications :
- Circuit : Custom one chip of microprocessor LSI circuit.
- Temp. Sensor : Thermister.
- Data Logger : Max. can save 100 point data with recall. Manual, push the data logger button once will save data one time.
- Data Hold : Freeze the display reading.
- Sensor Structure : Cup van probe with low friction ball bearing design.
- Memory Recall : Maximum & Minimum value.
- Sampling Time : Approx. 1 second.
- Power off : Auto shut off saves battery life or manual off by push button.
- Operating Temp. and Humidity : 0 to 50C Less than 80% R.H
- Power Supply : DC 1.5V battery [ um4/aaa ] x 4 PCs.
- Power Current : Approx. DC 6.8 mA.
- Weight : 181 g/ 0.4 LB.