Installing PeTech root CA certificate
From PeTechWiki
Downloading the certificate
You may download the root CA certificate for PeTech SSL here.
To verify the certificate, it's SHA1 fingerprint is 37:4B:E0:A0:47:CD:65:8B:B3:CC:51:18:30:9D:E3:20:E8:94:69:3F
.