Buy any domestic "Electricity Monitor" compatible with whatever controller you already have. This free you from the hard task to find a single power plug that will read and record high loads +- 10A, > 2000 watts.
Say you want a z-wave speaking "Electricity Monitor" , perhaps this will work .

In my ...

Buy a powerstrip/"short extension" with desired amp rating. These are everyday items.
Split the cable between the plug and the strip and fit a household electricity monitor clamp to the live wire.
Now you can monitor to your heart`s delight.

I use a OWL Micro+ CM 180 as the electricity monitor.
As ...

Thank you.

List updated.

This stuff is time consuming and expensive to test.
Why such a list does not already exist beats me.

Brief summary this far:
Kerui D026, 433 @ +- £8, ty “CaesarPL” and “b_weijenberg”. {Will test when arrive tomorrow}
FOXX A75WA, Aeotec DSB29, z-wave Door/window @ £15 in ...

This may help others.

How to get Kerui, D026, 433Mhz working.

3 states, Closed, Open, removed/ tamper.

Kerui, D026, 433Mhz {use 23A 12V battery}
Platform, Windows and Linux.
Sofware: Domoticz v3.8153 firmware, RFXtrx433_Ext2_1022.
Controller: I use RFXtrx433E~LightWaveRF.

In Domoticz v3.8153 ...

Some feedback I hope will help others.

You can buy and use this door sensor with Z-wave:
FOXX A75WA, Aeotec DSB29 Door/window @ £15 in maplin
{Busy testing it on a fan so it moves back and forth so state change every ten seconds. +- 1000 changes and still working fine.}

You must do the following ...

Thank you for your recommendations this far.

Brief summary this far:
Kerui D026, 433 @ +- £8, ty “CaesarPL” and “b_weijenberg”. {Will test when arrive tomorrow}
GC00AM NAS - DS01Z, Z-wave @ +- £20 {delivery takes very long 2weeks}, Ty “blacksn0w”. {Will test when arrive +- 2 weeks}
PST02-C, z-wave ...

The RFXtrxE works perfect with F007TH in Domoticz v3.8153.
You must ensure the RFXtrxE use firmware Ext2. I run RFXtrx433_Ext2_1022.

See below.

Dear All,

Please could you make a recommendation, what door sensor with on / off sense do you recommend?

Spent many hours, still a nightmare.
Have z-wave and RFXtrxE 433 controllers.

Hope to find a good reliable product for <= £20 per sensor.

Options I have tried.
Bought a FOXX A75WA aka Aeotec ...