Bosch Smart Home EasyControl Radiator Thermostat TRV missing cover

Bosch Smart TRV to go with Bosch central systems. NB this has a missing battery cover hence price - check my other auctions for ones with battery covers. Changed system so can no longer use, but they worked really well - with the app you can set up each radiator's time schedule over the week so really minimise how often each radiator turns on. Any questions, do ask. Happy to combine postage and won't use Evri!