Features CLEAR LCD DISPLAY: The indoor thermometer uses a large LCD display with large bold numbers, allowing you to read the numbers from any angle and distance. ENSURE DURABILITY: Humidity temperature gauge is made of good quality materials to ensure durability and practicality. LIGHT AND SMALL: This portable meter is not only light and small, but also easy to put in the pocket, or anywhere in the house. ±1.0℃/ ℉ TEMPERATURE ACCURACY: Temperature measurement range from ‑40‑60℃ (‑40‑140℉), temperature measurement accuracy is ±1.0℃/℉, relative humidity measurement range for 10%‑99%. DETECTION INTERVAL OF 10 SECONDS: Detection interval of 10 seconds, built in 3V 210mAh lithium manganese button battery, can be used for a long time. Specification: Item Type: Humidity Temperature Gauge Model: WKS-50 Temperature Measurement Range: -40-60℃ (-40-140℉) Temperature Measurement Accuracy: ±1.0℃/℉ Relative Humidity Measurement Range: 10%-99% Detection Interval: 10 Seconds Battery Information: 1 x 3V 210mAh lithium manganese button battery(built in battery) Package List:1 x Humidity Temperature Gauge Package List 1 x Humidity Temperature Gauge