ZWO EAF Temperature Sensor - EAF-SENSOR
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Keep your telescope in focus as the temperature fluctuates with this Temperature Sensor for the ZWO EAF Electronic Automatic Focuser.
If you purchase the Standard version of the EAF-5V, the temperature sensor is optional,. and you can buy it here. However, this accessory (along with the EAF Controller) is included if you buy the "Advanced" version of the EAF-5V, so keep that in mind when shopping.