This document describes the features and characteristics of the Extech HD450 Digital Light Meter, including measurement of illuminance, data logging, and PC interface.
The Extech HD450 is a heavy-duty datalogging light meter designed to measure illuminance in Lux and Foot candles (Fc). It features an internal memory capable of storing up to 16,000 readings for download via its included USB PC interface and Windows-compatible software. The device also allows users to view up to 99 readings directly on the LCD display.
| Internal Memory Capacity | Up to 16,000 readings |
|---|---|
| LCD Display Count | 4000 count LCD display |
| Operating Temperature | 0 to 40°C (32 to 104°F) |
| Battery Type | 9V battery |
The meter measures illuminance in Lux and Foot candles (Fc).
Up to 16,000 readings can be stored for download to a PC.
Simultaneously press and release the RANGE/APO and REC/SETUP buttons.