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Low temperature cutoff for Smart MPPT and Quattro ?

I have a Quattro and Smart MPPT. Both would be normally connected over winter. I'm planning to have LiFePO4 batteries and want low temp charging cutoff for less than 5DegC. I also have a BMV-700 and am planning to integrate with a CCGX.
Can 1 temperature sensor tell both the Quattro and MPPT to stop charging below my cutoff ?
Which temp sensor and how/where should it be connected ? Or am I best getting 2 sensors one for the Quattro direct and one for the Smart MPPT.

Temperature Sensor
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