简介：Features: * temperature & humidity display * temperature unit ℃/℉ changeable *comfort level display * 2 modes of time display: 12h / 24h * Count down Temperature Range:-10℃～+50℃ (+14℉～+122℉) Humidity Range: indoor 20% RH～95% RH Timer Range: 99'00''～0 Product Dimension: 105× 105× 20 mm Power-supply: 1.5V (AAA) x2