Hi All,
About 10 or 15 years ago we sold thousands of multi-line lasers, but as a company, we are now tending to be more focused on the Groundworks Rotary Lasers and Magnetic Detectors from Fukuda, Topcon and Spectra. As such, we don't have any indoor green beam lasers which would meet your requirements.
However, as a bit of free advice (as if I was doing this myself for my own projects)...
I would probably pick up something like the Dewalt DCE089D1G:
https://amzn.to/45JDIZw
Again, no personal experience with this particular model, but it is a self-levelling green beam laser which gives you a 360-degree horizontal datum and then has two further 360 vertical datums (one running front to back and the other running left to right). This will then allow you to effortlessly set out and square at 90deg. The way the vertical datums cross over one another will also give you an easy datum on both the floor and ceiling as if you were running a plumb line.
If I wanted to work outside with the Laser I would then need to pick up the Dewalt DE0892G Line Detector:
https://amzn.to/3qmNaBP
and this would then give me a range of up to 50m. The Detector can work in both "portrait mode" and landscape mode" enabling you to easily pick up the horizontal and more importantly the vertical datums in sunlight.
As the Dewalt DCE089D1G is a line laser, only the Dewalt DE0892G will work with it. i.e. you can't repurpose an existing Rotary Detector nor can you get a different model with a digital offset mm/ inch display.
I would then pick up something like the Stabila LT 30 Laser Telescopic Support post to mount the laser at varying heights indoors:
Fully extended it is 3.6m so unless you are working in a property with a vaulted ceiling, will always allow you to mount the laser. It also has a significantly smaller footprint than a tripod.
With this package, I then have a multi-line laser to easily set 90degrees as well as the 360 horizontal, a Detector to work outside and a way of positioning the laser at multiple heights.
I am sure there are cheaper options available but this is the sort of package I would buy If doing it myself.
I hope this helps.
Best regards
Mark Roberts
Laser Levels Online