Watchman or Apollo receiver as pictured (heating oil alert) (BT5)

Hi, I am looking for the plug-in receiver that goes inside the house. I have two working senders (the device that goes on the oil tank) - one is the Watchman brand, and one is the Apollo brand. Would anyone who has converted from oil to gas, and no longer has their tank, still have the receiver? Either brand of receiver would be great. Cheers.