The Extech LED LT40 light meter is used for monitoring and optimizing environmental light levels in buildings, schools, and offices. LED lighting is being used more commonly because they are less expensive, more energy efficient and brighter. Model LT40 measures the light intensity for white LED lights or standard lights. The LT40 has a built in sensor with protective cover and is supplied with 2 x AAA batteries and a protective pouch. Alternatively, the LT45 (57-6106) measures both white and colour LED lights and standard lights. * Measure LED and standard lighting in Lux or Foot-Candle (Fc) units * 4000 count display * Min./Max./Avg. functions * Cosine and color corrected measurements * Auto power-off * Dimensions 133 x 48 x 23mm (5.2 x 1.9 x 1in) * Weight 250g (8.8oz) https://elecena.pl/product/27788197/extech-lt40-light-meter 2025-02-03 https://elecena.pl/product/27788197/extech-lt40-light-meter 2025-03-25 https://elecena.pl/product/27788197/extech-lt40-light-meter 2025-05-24 https://elecena.pl/product/27788197/extech-lt40-light-meter 2025-06-12 https://elecena.pl/product/27788197/extech-lt40-light-meter 2025-07-21 https://elecena.pl/product/27788197/extech-lt40-light-meter 2025-08-31 https://elecena.pl/product/27788197/extech-lt40-light-meter 2026-02-25 https://elecena.pl/product/27788197/extech-lt40-light-meter 2026-03-20 https://elecena.pl/product/27788197/extech-lt40-light-meter 2026-04-13