Typhur Sync One & Sync Quad Thermometers - $40 USD / $90 USD + FS + 3.5% Rakouten

I saw that the Typhur Sync One and Quad are both on sale right now with free shipping.

The Sync one is $39.99 after using the code RFG39 (

Amazon has it for $110 with the lowest ever being $96 according to CCC:

And the Quad is on sale for $89.99 after using RFG89 (

Amazon has it for $300 with the lowest aver being $185 according to CCC:

Also you get 3.5% back via rakouten as well.