I set up a Lynx 7000 panel for my elderly mother years ago and she carries two remotes with her, the four button to arm / disarm / panic, and a one button medical pendant for medical assistance. Her pendant isn’t working, not sure what the make / model is or what battery it takes. I don’t have a way to get a picture or part# off of it, but I remember it being dark grey and rectangular with a square black button in the middle. Anyone know what that pendant was, or of any single button pendant would be? I’ve been searching for everything online and can’t find a single thing online but the 4 button.