Thông tin sản phẩm Specifications Backlit display for use in poorly lit areas Yes Holds temperature readings: Yes Range: -20 to 932 ºF (-30 to 500 ºC) MIN/MAX/AVG: MAX Distance to spot ratio: 10:1 at 80% energy Emissivity: Fixed at 0.95 Measurement Accuracy 50 to 86 ºF (10 to 30 ºC): ± 2 ºF (1ºC) Manufacturer: Fluke - USA