R831D - Wireless Multifunctional Control Box
By Netvox Technology Co., LtdR831D have three relay switches(output) and three dry contacts(input). R831D can report status of 3 dry contacts individually and control 3 relays
R831D have three relay switches(output) and three dry contacts(input). R831D can report status of 3 dry contacts individually and control 3 relays