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Extech LT250W: Light Meter with Connectivity to ExView® App

by Extech

Monitor light intensity data up to 100,000 Lux (10,000 Fc) from a mobile device

For used and refurbished options, call 1 (770) 674-2489.

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  • Product Overview
  • Technical Specifications
  • Resources
  • Accessories
  • The LT250W is a compact light meter with Bluetooth® connectivity, which allows building and maintenance professionals to view and share light intensity data directly from a mobile device using the free ExView app. With the capability to capture data, display trends, set visual and audio alarms, and send reports, users can gain deeper insights on workplace comfort and building health.

    • Measure light intensity up to 100,000 Lux (10,000 Fc) with measuring rate of 0.5 sec
    • Transmit, view, and share data directly from a mobile device via Bluetooth connection to the ExView app
    • Record Max/Min readings
    • Freeze display with 'Data Hold'
    • Save battery life with Auto Power Off feature
    • Mount on tripod with standard 1/4"-20 mounting screw
    • View data on both the bright, backlit RPM250W LCD display and from the app on iOS® or Android™ mobile devices (offers both day mode and dark mode)
    • Connect up to eight compatible Extech Connected 250W Series meters to the app simultaneously
    • Set up data recording and program high/low audible alarms through the app
    • Export data in .CSV file format or send PDF reports—including photos of the measurement location—from the app
    • Comes complete with 3 AAA (1.5 V) batteries
  • Specifications Range Max Resolution Basic Accuracy
    Foot-Candle (Fc) 0 to 9999 Fc 1 Fc ±4% rdg
    ≥10,000 Fc 10 Fc ±5% rdg
    Lux 0 to 9999 Lux 1 Lux ±4% rdg
    ≥10000 Lux 10 Lux ±5% rdg
    ≥100,000 Lux 100 Lux ±5% rdg
    Sampling Rate 0.5 sec
    Display 9999 count (backlit LCD)
    Connectivity Bluetooth (Free ExView App)
    ExView App Compatibility iOS 13.0 and higher & Android 9.0 and higher
    Transmission Distance >10 m up to 90 m line of sight
    Power 3 x AAA (1.5 V) battery (included)
    Operating Conditions 0 to 40°C (32 to 104°F), ≤80% RH
    Dimensions 6.9 × 2.1 × 1.1 in ( 176 × 53 × 28 mm)
    Weight 3.2 oz (90 g)

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