LCD Digital Alarm Thermometer YK-90

Translation missing: zh-CN.products.product.overview Features:
Display indoor and outdoor temperature simultaneously
Outdoor temperature is measured by a thin and long detector through window or any hole]
Unit is selectable with C or F
LCD readings
Can hang on wall or stand on table
Widely used by home and office

Specifications:
Indoor temperature range:-20~50 C/-4~122 F      
Outdoor temperature range:-50~70C/-58~158 F
Accuracy: 0~50C �1 C  <0C >50 C (�2 C)      
Temperature Resolution  : 0.1C
Power supply: 1 x 1.5V No 7 battery(not included)
Probe length : 6 foot(1.8 m)
Display size: 30x40mm
Digital Height : 12mm
Weight: about 80g