Weller WCB1, System Calibration Unit For WSD80 & WSD130Condition:* Used Sale Demonstration Unit. In OEM Packaging.* Some Corrosion On Battery Terminal.* As Pictured.Additional Notes:* Compatible With WSD80 And WSD130 Soldering Stations.* Offset: allows user to calibrate tip temperature of soldering iron to outside temperature reference* Setback: station will set back to 300F after a period of inactivity* Operator Lockout: allows you to set at a certain temperature, overriding front panel control* Allows Switching Between F And C* Allows resetting of station electronics to original factory calibration* Powered By Four AA Alkaline Batteries (NOT Included)* Three Digit LED NisplayWellerWCB1