One of the many Chinese consumer models, Huepar Box-1G. Cross configuration, green 150 degrees. When I bought it they advertise 165’ outdoors. Now the specs say 150’. Of course, none of these can be seen far in daylight. Using it outside with a white target stick I got about 60’, which is probably further than some of the others. I’ve used it indoors to mount some shelves, worked fine. They do sell an electronic receiver/detector.