This high-precision professional-grade digital illuminance meter features a silicon photocell detector with built-in visual correction filter. The spectral characteristics have been strictly corrected for accurate and stable measurements with minimal V(λ) matching error and high resolution.
Ideal for precisely measuring visible light emitted by various light sources including fluorescent lamps, metal halide lamps, high-pressure sodium lamps, incandescent lamps, and LED lamps.
The instrument features a split design for easy portability. The probe includes a handle for convenient measurement handling, while the plug-in head is designed to prevent reverse connection. The main unit features a rubber-coated shell for shock and drop resistance, built-in button batteries, slim profile, and extended battery life.
| Specification | Details |
|---|---|
| Display | 3 3/4-bit LCD, maximum reading of 3999 |
| Measuring Range | 0.01 lux ~ 39,990 lux |
| Overload Display | Displays "1" when overloaded |
| Maximum Resolution | 0.01Lux |
| Accuracy | 4% + 5 digits (under 2856K standard light source) |
| V(λ) Matching Error | V(λ) ≤ 6% |
| Cosine Angle Deviation | 30° ±2%; 60° ±6%; 80° ±25% |
| Sampling Rate | 2 times/second |
| Repeatability | 1% |
| Operating Temperature/Humidity | 0ºC ~ 40ºC (32°F ~ 104°F), 0~70% RH |
| Storage Temperature/Humidity | -10ºC ~ 50ºC (14°F ~ 122°F), 0~80% RH |
| Power Supply | 3 CR2450 3V button lithium batteries |
| Battery Life | Approximately 300 hours continuous use (without backlight) |
| Automatic Shutdown Time | 5 minutes |
| Main Unit Dimensions | 160 × 78 × 34mm |
| Probe Dimensions | 50mm (diameter) × 125mm (handle length) |
| Probe Extension Cable | 1000mm |
| Instrument Weight | Approximately 390g (including battery and probe) |