Extech HD450 Heavy Duty Datalogging Light Meter is a device used to measure the intensity of light. It can measure 40,000Fc or 400,000 Lux of light intensity and automatically stores 16,000 readings or manually stores/recalls 99 readings. The device also features peak mode, relative mode, max/min and data hold functions.
This document provides ordering information and specifications for the Extech HD400 Heavy Duty Light Meter and the HD450 Heavy Duty Datalogging Light Meter. Both models feature a wide measurement range up to 40,000 Fc (400,000 Lux) and utilize a precision silicon photo diode with spectral response filtering for accurate readings.
| Fc Range | 40, 400, 4000, 40.00kFc |
|---|---|
| Lux Range | 400, 4000, 40k, 400kLux |
| Accuracy | ±5% rdg |
| Max Resolution | 0.01Fc/0.1Lux |
| Datalogging Capacity | 16,000 continuous readings; 99 selected readings |
| Dimensions | 6.7 x 3.1 x 1.6” (170 x 80 x 40mm) |
| Weight | 13.7oz (390g) |
The meters have a range of 40, 400, 4000, and 40.00kFc (400, 4000, 40k, and 400kLux).
Yes, the HD450 automatically stores up to 16,000 readings or allows manual storage of 99 readings.
The accuracy is specified as ±5% of the reading.