Multi-Function Instrument can display temperature, time & humidity all at the same time. It also features alarm and calendar functions. Ideally placed on a Desk or hung up on the wall Suitable for recording the weather humidity and temperature Material: PS Size: approx. 10.5x9.8x2.3 cm/ 4.1"x3.9"x0.9" Measurements: Temperature Range: -50 ° C to +70 ° C / -58 ° F to +158 ° F Temperature Accuracy: +/-1°C Temperature Resolution: 0.1°C Humidity Range: 10% RH to 99% RH Humidity Accuracy: +/-5%RH Humidity Resolution: 1% Battery by 1 x AAA 1.5V Clock 12 or 24 hours display Temperature, humidity and calendar display 3 button keys( MODE/ ADJ/ MEMORY)