12:1 D:S ratio MAX/MIN/AVG/DIFF/Hold modes Ring laser type Temperature recording up to 99 groups Adjustable emissivity 0.1~1.0 "1.5 "C temperature measurement accuracy User defined visual and audio alarm High contrast EBTN color display Specifications Product size 160mm x 74mm x 48mm Product net weight 204 g Display 30mm x 30mm Accuracy >0"C: "1.5"C or "1.5% ; ?0"C: "(1.5"C +0.1"C/"C) / >32"F: "3.0"F or "1.5% ; ?32"F: "(3.0"F+0.1"F/"F) D S ratio: 12:1 (95%) Laser Power < 1mW Power 9V battery Response time ?250ms (95% of reading) Repeatability 0.7"C or 0.7% (1.5"F or 0.7%) Emissivity 0.1~1.0 (adjustable, stores 5 sets of preset values) Spectral response 8um~14um Temperature range -32~600"C / -25.6~1112"F