Brand Name: Huaruiyu
Use: Universal,Lighting,Electric Door,Automated curtains,SWITCH
Certification: NONE
Origin: Mainland China
Wireless Communication: RF
Channel: 4
Model Number: SOMMER 4020 4025 4026
Frequency: 868MHz
Battery: CR2032 (contain)
Compatible 1: Sommer 4020
Compatible 2: Sommer 4025
Compatible 3: Sommer 4026