Large display hygro Specifications Measuring range:temperature:0c~+50c (32f~+122f); Humidity: 20%~90%. Accuracy: +/1c(+/-1.8f) at the temperature of 0c~+50c (32f~122f); +/-5% at the temperature of 0c~50c(32f~122f) and the humidity of 40%~80%, +7% at the remaining range. Resolution: Temperature: 0.1c(0.1f); Humidity: 1%. Battery: 1.5v aaa Capacity 0c~+50c (32f~+122f); humidity: 20%~90%. Dimension: 108x100x22(mm)