A network-based relay control module base on 32bit system This module can use the internet or intranet router control relay module Thus Complete Re mote control of electrical switches achieve the purpose of pow er centralized management. It can be set directly through the IE browser and control. Direct for use. Network assistant set serial port Please pay more attention to the connection when connect to the high voltage pow er supply module and avoid damaging the equipment. Can be used for home decoration hotels shopping malls factories cafes karaoke oK timer management daily office shop surveillance physical networking industrial control equipment testing equipment pow er control unattended underground pi pelines mining equipment ships aircraft stations room street management intelligent management and centralized management. External pow er supply voltage-5.5V DC 2A Max. Relays can be accessed:8 Electronic switch life:100000 times Work temperature:-30Celsius - 85Celsius colour:White material:PCB size:47.8*47.8*15mm Package Contents: 1 * network control switch 1 * radiator 1 * 10 pins Only the above package content other products are not included. Note: Light shooting 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. About Us We provide the good product with the best pricewe support Wholesale/Drop Shipping Order 1. For Drop Shipping order please remark"dropshipping order" we will prioritize it. 2. For Wholesale/Drop Shipping orders if you have any ideas about the price or packageplease contact us in advancewe will give you the best service to satisfy your demands. About Shipments 1.We will send out the orders ASAP once your payment is completed normally. 2.Please write your complete delivery address with correct phone number and zip code especially please confirm your full name. About After-sale Service We are reliable seller and we have our professional after-sale service for all of our customers. If there is any question about the orderplease contact us in advance we will always here until you get a happy answer. About Feedback 1. Please check the package and item when you get carefully to make sure there is no problem. 2. If you have any problem or are not entirely satisfied with your packageplease don’t be hesitate to contact us first before leaving negative feedback. We will resolve the problem to satisfy you. 3. If there is no problem please leave us five star positive feedback. Your affirmation is our greatest motivation ! ! !