You shouldn't break neutrals for anything!
I imagine using a relay from a programmed output to trigger the emergency stop input?
Why not a lockable isolator?
It can't be helped if that's the kit the installer supports.
If you didn't stock Texe people would shop elsewhere for it.
Clearly there are installers out there that buy Texe from SW knowing they get good service.
Early Starburst Menvier keypad, as above.
You can revive them for a little while if you clean the contacts.
You should be looking for new controls as any used stuff will have similar wear.
The keypad membrane on a Veritas is enclosed and not the type you would normally clean with isopropyl or the like.
They are pretty robust the keypads so if you are competent I would take it apart and check it's faulty.
I would check the system arms on Part and if diagnosed a faulty keypad then I am sure you can pick them up. Veritas K Keypad I believe they are called.
What you need to increase your company profile in the age of the botnet is...
https://vulnsec.com/2016/netgear-router-rce/
https://www.kb.cert.org/vuls/id/582384
Yep I agree.
Looking at budget, and the fact you stated low maintenance.
I'd make sure any door and window locks are sufficient, add or upgrade if necessary.
Dummy box and a few battery powered adhesive shock sensors on vulnerable windows.
Maybe you'll have change left for a pie dinner.