The Replacement Temperature Controller for Heating Pad - TK-HP2412 is a specific controller designed to work with the TK-HP2412 heating pad model. I do not have the actual heating pad so I cannot test it fully, but as you can see it powers on and appears to be operational. Since I can’t test it fully, if you have any issues upon purchasing, just let me know and we can do a return for a full refund. There is some marker on the back as you can see. Happy to combine shipping.