We are a Collectible Toy & Memorabilia Company, We used to fix Soldering Issues from RC Toys to Handheld Game Systems when we had a physical storefront in Richland WA. Since we have moved away from that we have been slowly selling off everything from our small assembly line to Soldering Equipment, hopefully our loss is your gain  - Geeks Collectible LLC.

*Fully Tested & Functional Metcal/Oki MX/STSS Solder Pen Testing Unit*

(1) Metcal Oki International STSS-CST-11 Solder Pen Tester for MX-RM3E, SP-H1 & all other MX Series & STSS Series Soldering Pens. Very important to follow directions for instance give unit 5 minutes to warm up before Testing Pens for Functionality or you may get Wrong Results to Damaging Perfectly Good Expensive Solder Pen. Directions are right on the side of the unit. Please ask all questions prior to purchase, thank you  - Geeks.