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EXTECH LT505 Pocket Light Meter

EXTECH LT505 Pocket Light Meter offers wide light intensity ranges measuring up to 40,000Fc (400,000Lux) with high resolution to 0.01Fc (0.1Lux).

(1 customer review)

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EXTECH LT505 Pocket Light Meter

Extech’s pocket-sized auto-ranging Light Meter offers wide light intensity ranges measuring up to 40,000Fc (400,000Lux) with a high resolution of 0.01Fc (0.1Lux). Ideal for indoor lighting tests and for checking security and safety illumination in parking garages, nighttime ATM areas, stairwells, landings, and hallways.

A dependable and transportable tool for determining light intensity is the EXTECH LT505 Pocket Light Meter. It is a crucial instrument for professionals and amateurs who need accurate light measurements for their businesses or hobbies due to its precision, usability, and small form. The EXTECH LT505 can assist you in making judgments based on precise light intensity data whether you are a photographer, lighting designer, or facility manager.

EXTECH Light Meter LT505

  • Measure light levels in Foot-Candle (Fc) or Lux units using a precision photo diode with cosine and color correction filter
  • Zero/Calibration function
  • Data Hold and Min/Max functions
  • Auto power off with disable
  • Tripod mount (optional TR100 Tripod sold separately)
  • 40000fc 400000lux with high resolution
  • Pocket light meter app

EXTECH LT505 Light Meter specifications

  • Foot-Candle (Fc) 99.99Fc, 999.9Fc, 9999Fc, 40,000Fc 0.01Fc ±3%rdg + 3 digits
  • Lux 999.9Lux, 9999Lux, 99,990Lux, 400,000Lux 0.1Lux ±3%rdg + 3 digits
  • Dimensions 5.3×1.9×0.2″ (133x48x23mm)
  • Weight 8.8oz (250g) with batteries

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1 review

1 review for EXTECH LT505 Pocket Light Meter

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  1. Taylor

    High quality meter at the right price. Used professionally. This meter has a great reputation and delivers good service.

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EXTECH meters and testers help you ensure uptime, maximize productivity and verify compliance. Whether used as a component of an effective predictive maintenance program or as a key tool for a rapid response repair team, EXTECH instruments are the meters of choice for professionals who need to solve problems. Extech continues to build brand loyalty and trust among electrical contractors, industrial mechanics, facilities maintenance, HVAC/R technicians, sustainability & safety directors, public works managers, building & restoration contractors, and more. Extech products are backed with a standard full 2-year warranty, and select products up to 3 years, against defects.


Data Sheet


Lux meter
illuminance range(Lux) range/resolution/accuracy

Accuracy: ±3% of reading + 3 digits, range: 999.9, 9999, 99,990, 400,000 Lux, Resolution :0.1Lux

illuminance range(FC) range/resolution/accuracy

Accuracy: ±3% of reading + 3 digits, range: 99.99, 999.9, 9999, 40,000 Fc, Resolution:0.01Fc

Mechanical and General Specifications

133 × 48 × 23mm




2 × AAA (1.5V) batteries