I have 2 Wireless Bell Receivers(plug in type) but no Bell Push. I have no makers name only Type ST-885M & frequency 433.92MHz on the Receiver. Please can you help.

Geoff, November 2017

Sorry agree with Hajtrs
Logically manufacturers do not have to supply spares for their products.
We all have to face its uneconomical for some manufactures to have a spares list due to cost of manufacture and storage.
Wireless bells are so cheap you could be paying half the price of the whole unit just for a spare bell push button. Just think as the manufacturer would you stock parts that would take years to shift because of their long life product, therefore tying up money that could be spent on the factory floor machinery.
Just explaining its not a lecture.

bob uk, November 2017

A quick Gooogle search gives this:

http://www.globalmarket.com/product-info/wireless-ac-plug-in-door-chime-157886.html

which suggests that anything other than buying complete new sets is pretty well out of the question.

hajtrs, November 2017