Usage Tips:Premium Material: The housing is made of flameresistant material, built-in intelligent tuya chips, wear resistance, interference resistance, high strength and with fine durability. Digital LCD Display: LCD display design, it can displays real time data on the digital screens simultaneously, more accurate, easier to read, you can see the data clearly at a glance. Two display modes design to meet your needs. Mobilephone APP Control: After downloading the mobileohne APP, you can set the threshold or switch remotely through your cellphone at any time when you are out of , enjoy the convenience of the mobilephone APP. With device share function, you can share the control of device with relatives and friends, and the family can cancel the authorization to enjoy convenience and happiness together. Hands-free Voice Control: Compatible with for Alexa and assistant voice speakers for easy voice control, you can achieve voice control and enjoy the convenience of technology. Wide Applications: Application scenarios, suitable for household appliances management, remote management, housing rental use, industrial control equipment use, intelligent upgrade of power distribution equipment, etc. Due to different production batches, there may be slight differences in products. Voltage upper limit: 120V-300V, 275V default Lower voltage limit: 80-210V, 175V default Undervoltage and over voltage delayed: 1-9999s, 3s default Ovenvoltage and undenvoltage recovery time: 1-9999s, 20s default Current upper limit: 1.0-100.0A, 80.0 A default Overcurrent and undercurrent delayed: 0000-9999s, 5s Overcumrent and loss of current recovery time: 0000-9999s, 20s Lower current limit: 1.0-100.0A, 10.0A; 10-100mA, 30mA Colour:White Material:ABS Package Contents: 1 x Automatic Reclosing Protector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.