Smart Sensor AR867 Digital Humidity & Temperature Meter With Clock in Pakistan BR5278 Specifications: Temperature measuring range : indoor -10 deg.C to 50 deg.C ( -58 deg.F to 158 deg.F ) outdoor -50 deg.C to 70 deg.C ( -58 deg.F to 158 deg.F ) Humidity measuring range: 20 % RH to 99% RH C / F: yes Accuracy of Temperature : +/-1 deg.C, +/-1.8 deg.F Accuracy of Humidity: +/-5% Clock alarm function: yes Low battery indication: yes Power supply: AAA 1.5V Dimensions : 100 x 108 x 22 mm Temperature resolution : 0.1 deg.C Humidity resolution: 1% RH Package Includes: 1 x Smart Sensor AR867 Digital Humidity & Temperature Meter With Clock