Digital Wireless Indoor Thermometer and Humidity Sensor

Type Temperature Sensor Certification: CE Usage: Indoor Temperature Range -50℃ - 70℃ (-50°F - 158°F) Humidity range: 10%-99%RH Temperature accuracy: ±1 degree Humidity accuracy: ±5%RH Temp & Humidity sampling time: 10 seconds Display Size: 2.0 - 3.9 Inches Overall Size: 48 x 28 x 15mm / 1.89 x 1.10 x 0.59in Color: black, white (options) Material: plastic and metal Battery: 2 * Lr4a