Features 1、DISPLAY REAL TIME TEMPERATURE AND HUMIDITY: The screen displays real time temperature and humidity, clear digital display is easy to read 2、EXTERNAL TEMPERATURE HUMIDITY PROBE: External temperature and humidity probe can test the temperature of another enclosed environment 3、GOOD QUALITY MATERIALS: Humidity temperature gauge is made of good quality materials, ensure durability and practicality 4、±1℃ MEASUREMENT ERROR: Temperature measurement range from -50~70℃, measurement error for ±1℃, resolution is 0.1℃, humidity range from 10%-99%RH 5、DURABLE FOR A LONG SERVICE LIFE: This humidity temperature meter is accurate, portable and durable for a long service life Specification Item Type: Humidity Temperature Gauge Model: DTH-74 Temperature Measurement Range: -50~70℃ Measurement Error: ±1℃ Resolution: 0.1℃ Humidity Range: 10%-99%RH Battery Information: 1 x 1.5V 600mAh AAA dry battery(not included) Package List 1 x Humidity Temperature Gauge