We have acquired of import &sale permit of Data Logger Model:GL100WL (with Wi-Fi) in March 2018

This product which we or our partner company has been sold since April 2018, please use with confidence.
Wi-Fi module of GL240/GL840 series is available as well.
Reference:
Wireless device certification (NBTC)
To use or sell any communication device, the device should meet standard which provided by NBTC and required to register NBTC or get certification.