You will see that this small module carries the SRD-12VDC-SL-C name on itsThe SRD-12VDC-SL-C is the model noted on the packaging and in the manual.
3009 Compact Cordless Automotive Relay Tester for 12 Volt 4 and 5 pin relays and
A nice touch is the clear labeling of the model as DEK-OE- 12DC/ 48DC/100.
A nice touch is the matte finish on this unbranded relay, which resists fingerprints and looks tidy on aYou will find that this unbranded relay is easy to source, and the price stays reasonable for small projects.