This is Lenz' additional basic XpressNet Handset. The LH01 will work with LZV100 command station on Version 3.6. Use in conjunction with the LA152 Adapter to expand your Lenz System The design is minimalistic in order to give the greatest functionality for the least price.The LH01 Handset has a 4 digit display and one large control knob that works like a games consol control or a system control in a prestige car - the rotary knob can also be pressed in four directions and pressed in the middle so that you can enter the menues. In this way Lenz can offer a high specification for a low price:

https://www.wicknessmodels.co.uk/shop/controllers/lenz-controllers/product/716-lenz-lh01-handset