• Pocket Detective Window Tint Meter Exclusive Features - Slide On Unit for use on roll down windows_x000d_• Tri-Guard™ - Optical filtration system prevents false readings from stray light._x000d_• Opto-Pulse™ - Internal light source measures in all lighting conditions._x000d_• Dual Detection System™ - For consistently accurate readings time after time._x000d_• Ratio-Metric™ - Measuring system for precise repeatability._x000d_• Additional Benefits_x000d_• Every unit comes with a rugged double-walled carrying case._x000d_• Pocket Detective readings are traceable to N.I.S.T. standards._x000d_• Low battery indicator._x000d_• Warranty: 12 months from date of purchase_x000d_• Auto Recalibration_x000d_• Slide On Unit, part #: 801-0_x000d_• Deluxe Unit, part #: 804-0_x000d_• Specifications_x000d_• Size: 5.635" x 3.25" x 1.428_x000d_• Weight: 8 oz. With Battery_x000d_• Measured Band Pass Range: 520nm - 630nm_x000d_• Stray: <1%_x000d_• Power: 9 Volt Transistor Battery_x000d_• Measurement Time: 4 Seconds Or Less_x000d_• Measurement Accuracy: +/- 2% Of Full Scale_x000d_• Accuracy Range: Between 5%- 85% Visible Light Transmission_x000d_• Repeatability: +1 Percentage Point_x000d_• Humidity Range: 0-99% Non-Condensing_x000d_• Temperature Range: 0-100 Degrees F_x000d_• Lamp Life: 12 Years_x000d_• Stray Light Filtration: 3.5Kh Pulse Coded Selective Electronic Filtration_x000d_• Sample Size: 3" x 2" Minimum_x000d_• Sample Thickness Range: .125" to .25"time, costs and hassles of repainting.udes a 30x illuminated microscope with 8x magnifier, a pack of ten .2 micron filter membranes, heavy duty anodized aluminum housing with adjustable PSI flow gauge and a quick disconnect nipple in a durable foam lined case.lluminated microscope with 8x magnifier, a pack of ten .2 micron filter membranes, heavy duty anodized aluminum housing with adjustable PSI flow gauge and a quick disconnect nipple in a durable foam lined case._x000d_