A temperature sensor with 3 meter long cable works with the OLED clock,  showing temperature reading on the OLED clock.

 

the OLED clock, from Jun 2022 supports this tempreature reading feature.

One clock supports only one temperature sensor.

 

range -20 ~ 85C,  -4  ~ 185F, +/- 2 degreeC tolence.

Temperature sensor

$10.00Price