The Lutron AH-4223 is a professional 4-in-1 vane anemometer that also measures humidity, dew point and temperature. Air velocity 0.4 to 30.0 m/s in five units, humidity 10 to 95 %RH, temperature 0 to 50 °C. Dual display, data hold, max/min recall and auto power off.
The Lutron AH-4223 is a professional 4-in-1 instrument that combines a vane anemometer with humidity, dew point and temperature measurement. Air velocity is measured from 0.4 to 30.0 m/s and can be shown in m/s, km/h, ft/min, mile/h or knots, using a vane probe with a low-friction ball bearing design that is accurate at both high and low velocities.
Relative humidity is measured from 10 % to 95 % R.H. by a capacitance humidity sensor with a fast response time, and temperature from 0 to 50 °C (32 to 122 °F). The dew point is calculated automatically from the humidity and temperature measurement. The dual display works in three selectable modes: Humidity/Temperature, Humidity/Dew point and Anemometer/Temperature.
A microprocessor circuit provides data hold and recording of the maximum and minimum readings with recall. The meter is housed in a strong, compact ABS-plastic housing and operates from four DC 1.5 V (UM4/AAA) batteries, with auto power off to save battery life.
| Manufacturer | Lutron Electronic |
|---|---|
| Model | AH-4223 |
| Functions | Anemometer (air velocity), humidity, dew point, temperature |
| Air Velocity Range | 0.4 to 30.0 m/s; 1.4 to 108.0 km/h; 80 to 5910 ft/min; 0.9 to 67.0 mile/h; 0.8 to 58.3 knots |
| Air Velocity Resolution | 0.1 m/s; 0.1 km/h; 1 ft/min; 0.1 mile/h; 0.1 knots |
| Air Velocity Accuracy | ≤ 20 m/s: ± 3% F.S.; > 20 m/s: ± 4% F.S. |
| Temperature Range | 0 °C to 50 °C / 32 °F to 122 °F |
| Temperature Resolution | 0.1 °C / 0.1 °F |
| Temperature Accuracy | ± 0.8 °C / 1.5 °F |
| Humidity Range | 10 % to 95 % R.H. |
| Humidity Resolution | 0.1 % R.H. |
| Humidity Accuracy | ≥ 70% RH: ± (3% reading + 1% RH); < 70% RH: ± 3% RH |
| Dew Point Range | -25.3 °C to 48.9 °C / -13.5 °F to 120.1 °F |
| Dew Point Resolution | 0.01 °C / 0.01 °F |
| Dew Point Accuracy | Sum of the accuracy values of the humidity and temperature measurements (dew point is calculated automatically from them) |
| Reference Conditions | Electrical specifications at 23 ± 5 °C |
| Display | LCD, 28 mm x 19 mm |
| Circuit | Custom one-chip microprocessor LSI circuit |
| Anemometer Sensor | Vane probe with low-friction ball bearing design |
| Humidity Sensor | Capacitance humidity sensor, semiconductor |
| Temperature Sensor | Semiconductor |
| Data Hold | Freezes the display reading |
| Memory Recall | Maximum and minimum value |
| Sampling Time | Approx. 1 second |
| Power Off | Auto shut off or manual off (REC function) |
| Operating Temperature | 0 to 50 °C |
| Operating Humidity | Less than 80% R.H. |
| Power Supply | DC 1.5 V battery (UM4/AAA) x 4 PCs |
| Power Current | Approx. DC 5.2 mA |
| Standards | ISO-9001, CE, IEC1010 |
| Dimensions | 205 x 48 x 40 mm (8.1" x 1.9" x 1.6") |
| Weight | 182 g / 0.4 LB (battery included) |
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