I had a similar product and loved it, but the red projection diodes started failing. This one by La Crosse has such dim projection light that I can't discern the numerals on my standard height ceiling in a totally dark room. Moreover, the backlight on the LCD screen is too dim to adequately illuminate the readout. I consider it either individually defective or universally poorly engineered. The projection feature was the reason I bought it, and I haven't used the alarm function. The company accepts warranty and support claims only by an e-form on their website, stating they are swamped with calls and emails. Maybe there's a reason. I'm awaiting their response.