| Description
The HT Instruments HT309 is a digital, handheld light meter, not a clamp meter, used for measuring the illuminance of both standard and multicolored LED light sources. Its silicon photodiode sensor is connected to the main unit via a cable, allowing for flexible positioning. |
| Key Features
Measurement: Measures illuminance in lux (Lx), foot-candles (Fc), and luminous intensity in candela (Cd). LED measurement: Can measure LED light sources of various colors by setting the appropriate color correction factors. High range: Capable of measuring up to 400,000 lux. Data functions: Includes data hold to freeze readings, and maximum, minimum, and average functions to track measurements over time. Memory: Features an internal memory to save measurement results. Auto-ranging: Automatically selects the correct measurement range. Automatic power off: Conserves battery power by automatically turning off after 5 minutes of inactivity. Compliance: Complies with international CIE standards on spectral response, according to Class A guidelines. |