Sper Scientific
840020
Light Meter (Lux & Foot-Candles)
Monitor visible light levels anywhere with fast, stable and accurate response.
Results are easily read on the extra large LCD (1½" high, 38.1 mm) with bar graph, low battery and over range indications. The color and cosine corrected sensor meets C.I.E. photopic spectrum. Will read LED light.
Also features min/max, peak function, auto power off, external zero adjustment, hold function and a tripod back. The lux/foot-candle light meter comes ready to use with a 9V battery, instructions, soft padded case with shoulder strap, and a detachable sensor (with 44" cord) with cover for easier replacement or repair.
Meter Dimensions: 7¾" × 2¾" × 1¼" (197 × 70 × 32 mm)
Weight: 10 oz (283 g)
*Certification Option
N.I.S.T. traceable Certificate of Calibration available at additional cost (Select option above).
| Range | In-Range Display | Resolution | Accuracy | |
| Lux | 40.00 | 0 to 40.00 | 0.01 | ±(3%rdg+0.5% FS) |
| 400.0 | 36.6 to 400.00 | 0.1 | ||
| 4,000 | 360 to 4,000 | 1 | ||
| 40,000 | 3,600 to 40,000 | 10 | ||
| 400,000 | 10,000 to 400,000 | 100 | <100,000 ±(3%rdg+0.5% FS) >100,000 for reference only | |
| Foot Candle | 4.000 | 0 to 3.720 | 0.001 | ±(3%rdg+0.5% FS) |
| 40.00 | 3.35 to 37.20 | 0.01 | ||
| 400.0 | 33.5 to 372.0 | 0.1 | ||
| 4,000 | 335 to 3,720 | 1 | ||
| 40,000 | 930 to 37,200 | 10 | <9,300 ±(3%rdg+0.5% FS) >9,300 for reference only | |
| Accuracy tested by a standard parallel light, tungsten lamp of 2856°K | ||||
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