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The SMARTRO SC31B is a versatile digital projection alarm clock featuring dual alarms with snooze, indoor/outdoor temperature projection, and an 8-color backlit LCD. It includes a USB charging port and battery backup to maintain settings during power outages. Compact and stylish, it also offers a 12-hour weather forecast and barometric pressure trends, making it an ideal bedside companion for modern professionals.














| ASIN | B07CJ2ZNLK |
| Alarm Clock | Yes |
| Are Batteries Included | No |
| Best Sellers Rank | #52,616 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #8 in Projection Clocks |
| Brand | SMARTRO |
| Clock Form | Travel |
| Color | Black |
| Connectivity Technology | Power Adapter |
| Customer Reviews | 4.3 4.3 out of 5 stars (5,837) |
| Date First Available | April 19, 2018 |
| Dial Color | Black |
| Display Type | LCD |
| Frame Material | Plastic |
| Indoor/Outdoor Usage | Indoor |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5.3 ounces |
| Item model number | SC31B |
| Manufacturer | SMARTRO |
| Material | Plastic |
| Mounting Type | Tabletop |
| Number of Items | 1 |
| Operation Mode | Electrical |
| Power Source | Corded Electric |
| Product Dimensions | 5.28"W x 3.15"H |
| Room Type | Bedroom |
| Shape | Rectangular |
| Size | Small |
| Special Feature | Adjustable Brightness, Alarm, Calendar Display, Charging Port, Projection Clock |
| Style | Digital |
| Theme | Plain |
| UPC | 604213902313 604213902337 604213904249 604213904348 604213904218 604213901712 604213904270 604213904195 604213904294 604213904201 604213904256 604213904355 604213904225 604213904324 604213904263 604213904362 604213904287 604213904232 604213904331 |
| Warranty Type | 13-month warranty |
K**T
LOVE IT!!
Very satisfied!!! The projection time is large numbers clear and easy to read. I love that you can turn the projection on or off. No need for it to be on in the daylight. I love that you can choose the color of the light on the display and also you can completely turn the display light off. But at night all you have to do is touch the top and the light will come on for a few seconds and then shut back off, love that! Love the two separate alarm settings. Love that it has a USB port to charge my phone. And my absolute favorite part is IT HAS AN ACTUAL CORD THAT PLUGS IN TO THE OUTLET NOT JUST A USB ADAPTER WITH A CORD. Those USB adapters get hot when left plugged in 24/7 Great bonus that it gives you the outdoor and indoor temperature on the screen as well as on the projection! All in all, this is a great little alarm clock at a fair price!! Checked all my boxes Now, let’s hope it lasts for a long, long time? I had my other one that was a different brand for 20 years before the projection stopped working.
A**S
Nice... but one complaint.
Only issue for me is that there's no focus adjustment for the projection light. My old one had that which allowed you to use it anywhere. This one limits where you can put it. The angle and distance will make it blurry, so it's very limited. Things like this need to be thought about during the design process. Other than that I really like it.
C**N
THIS is the projection clock you need
I purchased a different brand of projection clock that was so complicated to set up and use, we made the decision to replace it. We chose a different brand, the Smartro Digital Projection clock. It arrived quickly, was a breeze to set up and functions just as we had hoped.
S**P
Nice upgrade from my 20 year old radio shack Version
Nice&eazy set up, well written instructions, clear image in darkened room and auto set clock Added feature is the indoor and outdoor temperature projected with time in clear red light *the in/out temp alternating*
F**I
Great product with no parallel but sadly the outdoor temp sensor stopped working. (Edited)
Edited Review: 3 stars -> 5 stars Ok, so based on my original review below after 6y of owning the clock and buying a 2nd clock I was so surprised they sent me an email based on my review and sent me a replacement sensor. The new sensor paired immediately with the clock on Ch 1 and is also the newer model which has a small LCD display on it. Now this is just amazing service honestly. I mean, after so many years, they still supported me this way. I liked their product that this was my 2nd purchase of it. Now I'm going to go ahead and support them and have gotten a couple more folks to buy this product via Amazon simply because this sort of support is just amazing. The sensor is paired and now projecting the outdoor temp again on the night ceiling and I no longer have the "--" after months of this. I can't tell you how happy it makes me to have things that now work as intended and the little joy it gives you. Thank you SmartPro. Original Review: So I bought this product because honestly there is no other product that is equivalent to it. It can project indoor and outdoor temp (via a remote sensor) and it has multiple colors or turn it off for no glare at night and reversible projection display (red color only) and it works wonderfully. Sadly one day the outdoor sensor just randomly died and stopped functioning. This was after I bought this unit a 2nd time having used it before. The best part was the outdoor temp honestly. Also the main LCD display got all weird but as long as it projects I'm good with it. Still will likely buy it again for the 3rd time simply for the nice indoor + outdoor temp cycle and excellent wall projection of time. Very useful at night. Shockingly I don't see other products that can do this.
L**P
Great projection clock, but inaccurate outdoor sensor
Bought this projector clock to replace an older LaCrosse one that stopped working (you realize just how useful projection clocks are when you've had one, and then you don't!). I like that the time dominates the display and you don't have to hunt amongst a sea of numbers like some of the weather station clocks. The changing colors and multi-step illumination is a nice feature to tune how bright it is in a dark room. The overall size if great for a bedside, and the build quality is good. Projection is clear and easy to read, although doesn't have adjustable brightness. All round, a worthy replacement that I would highly recommend. BUT ... my biggest reason for not giving 5-stars is the significant discrepancy in temperature reading between the indoor and outdoor sensors. When both are placed beside each other and left to settle, the outdoor one always reads at least 2-3F lower than the indoor sensor in the clock. The clock is correct since it reads about the same as other thermometers places beside it. This makes the outdoor sensor all but useless.
H**O
Would reccomend
I love this clock. Simply love it. Works fantastic, the lazer projection looks clear as long as it's not projected too far away. It's great to be able to wake up, look up at the ceiling and immediately know the time. Very useful clock!
W**R
Great gift for light sleepers
I was influenced to buy this and I absolutely love it. When I wake up in the middle of the night, I can easily see the time projected on the ceiling without having to pick up my phone or even turn my head to see the clock. I love that it tells the temperature inside and outside as well. I wish the projector had a light sensor that would turn off the projection off when the light was on, but it doesn't bother me that much.
R**G
P**S
excelente
W**G
Great clock. I like the crisp display and the projection as well. The set up is easy. Worth buying.
N**D
Clock arrived on time, was well packaged and works very well
C**Y
The small clock has many features including the option of a multi colour display. It has a bright projection display that shows internal/external temperature and time, and is super easy to set up with the remote external temp sensor. It’s small footprint takes up little space on the bedside table. The bright display transforms the ceiling into an informative and unobtrusive information focus.
Trustpilot
2 days ago
3 weeks ago