Features: 1SIMPLE CONTROL: The 4G smart socket can be controlled by SMS APP and buttons which is convenient and practical. 2TEMPERATURE SENSOR: With temperature sensor can control the corresponding electronic equipment according to the temperature change. 3MULTIPLE FUNCTIONS: With power failure reminder function and 5 sets of master numbers can be set which can be shared with family. 4WIDE APPLICATIONS: Can be used for fish pond farming agricultural planting remote control of household equipment etc. 5INSULATION SHELL: The smart outlet shell is made of excellent PVC material flame retardant and heat insulation safe in operation. Specification: Item Type: Smart SocketProduct Material: PVCProduct Size: Approx. 11 x 6.4 x 3.1cm / 4.3 x 2.5 x 1.2inWeight: Approx. 217g / 7.7ozControl Type: SMS APP buttonWorking Current: 16AGSM Frequency: 850/900/1800/1900MHzControl Distance: Unlimited DistanceWorking Humidity: 65%Working Temperature: -10-55Temperature Detection Range: -40-110Maximum Load: 2000W inductive load halvedScope of Application: Control household and industrial appliances such as water heaters water pumps air conditioners electric doors lights etc. Package List: 1 x Socket1 x Temperature Sensor1 x User Manual Note: The SIM card needs to be installed before power on it is strictly forbidden to install the SIM card after power on.