EXTECH 407026 Heavy Duty Light Meter with PC Interface

This light meter offers selectable lighting types, data record/ recall, relative display mode, and PC interface. This professional meter, with proper care, will provide years of safe reliable service. Features: * % displays differential from reference point * “ ZERO” Re-Calibration * Enhance accuracy by selecting lighting type Tungsten/ Daylight, Fluorescent, Sodium, Mercury) * Data Hold, Min/ Max/ Avg readings * Built-in RS-232 PC serial interface Specifications: Circuit: Custom one-chip LSI microprocessor circuit. Display: 3-1/ 2 digit ( 2000 count) LCD display with contrast adjustment. Measurement ranges: LUX: 0 to 50, 000 LUX ( 3 range) ; Fc: 0 to 5000 Fc ( 3 range) ; Relative mode: 0 to 1999% . Data Hold: Freezes displayed reading. Lighting Types: Sodium, Daylight/ Tungsten, Fluorescent and Mercury. Sensor Structure: Cosine/ color corrected photo-diode meets C.I.E. Memory Store/ Recall: Records/ Recalls Max/ Min/ Avg readings. Sample rate: 0.4 seconds ( approx.) per reading. Zero Adjust: Push-button procedure. Auto Power Off: After approx. 10 minutes. Data Output: RS-232 PC serial interface ( optional software/ cable PN 407001) . Operating conditions: 32 ° F to 122 ° F ( 0 ° C to 50 ° C) ;