Range: -40 to 85°C; Resolution: 0.1 °C; Accuracy: ±0.5 °C (@ ambient of -10 to 85 °C); Memory: 4000 readings; Sample rate: 6 seconds to 255 minutes; Battery: 3.6 volt half AA lithium Battery life: 18 months; Display: 2 LED's; Dimensions: 76 x 23mm; Weight: 71 grams; Case material: ABS plastic with Biomaster anti-bacterial additive; Country of manufacture: United Kingdom; Guarantee: Two years; Water/dust resistance: IP66/67 protection; Measurement scale: Celsius/Fahrenheit; OS: Windows; Conforms to standard: EN 12830:1999, S & T, C & D, 1