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AcuRite

AcuRite 75100C 18-Inch Large Led Clock with Indoor Temperature

  • Based on 7,419 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Mar 8
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Size: 18-Inch


Color: Red


Features

  • Oversized LED clock allows for easy viewing from across the office, classroom or living room
  • Large 5.5-inch digits can be viewed from 200+ feet away
  • Easy to mount as a digital wall clock using the integrated keyholes, or use the fold-out stand for desk placement
  • Powered by 9-foot power adapter (REQUIRED) with integrated cord storage
  • Battery operated back up keeps the time in the event of a power outage

Description

See the time up to 200 feet away from any angle with the AcuRite 18” LED Digital Clock. With tall, 5. 5” tall, easy-to-read numbers, this digital display features day-of-the-week, date, and current indoor temperature. Powered by a 9-foot adapter, this clock has a cable management system for neat and tidy power cord management. Features integrated keyholes for effortless wall-mounting. Or stand it up at your desk. One year included. Indoor Temperature Range 32 to 122 degrees Fahrenheit; 0 to 50 degrees Celsius, Temperature Accuracy +/- 2 degrees Fahrenheit and Data Reporting 60 second updates on indoor temperature readings.

Brand: AcuRite


Color: Red


Display Type: Digital


Style: Casual


Special Feature: Calendar Display


Product Dimensions: 18"W x 8"H


Power Source: Red LED Clock 5V power adapter (required; included); 2 AA alkaline batteries (for backup; not included) See more


Room Type: Classroom, Garage, Living Room, Office


Shape: Rectangular


Indoor/Outdoor Usage: Indoor


Brand: AcuRite


Color: Red


Display Type: Digital


Style: Casual


Special Feature: Calendar Display


Product Dimensions: 18"W x 8"H


Power Source: Red LED Clock 5V power adapter (required; included); 2 AA alkaline batteries (for backup; not included)


Room Type: Classroom, Garage, Living Room, Office


Shape: Rectangular


Indoor/Outdoor Usage: Indoor


Material: Plastic


Theme: Practical/Functional


Frame Material: Plastic


Are Batteries Included: No


Mounting Type: Wall Mount


Item Weight: 8 ounces


Number of Batteries: 2 AA batteries required.


Alarm Clock: No


Warranty Type: Limited


Number of Items: 1


Operation Mode: Electrical


Dial Color: Black


Clock Form: Multi Display


Global Trade Identification Number: 01, 62


Size: 18-Inch


Connectivity Technology: Power over cable


Manufacturer: AcuRite


UPC: 072397751001 770352763297


Item model number: 75100MA1


Batteries: 2 AA batteries required.


Is Discontinued By Manufacturer: No


Date First Available: December 22, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Beautiful clock large easy to see.
Size: 18-Inch Color: Red
Great clock! Bright and readable! Purchase for my husband’s garage. He loved it.
Reviewed in the United States on November 18, 2025 by Strong
    • Great Clock
Size: 14.5-Inch Color: Green
Why did you pick this product vs others?: Happy I got this. Large numbers, and bright, so I can see it from across the room. Easy to set up and hang. Temp, day, and date are nice additions.
Reviewed in the United States on July 2, 2025 by Tanggor
    • Attractive Clock; Great Customer Support
Size: 14.5-Inch Color: Red
I bought this clock in August to help my kids keep track of the time and date for cyber schooling. I wasn't sure how I'd like a blazing red LED institutional looking clock on my wall and I was a little concerned the light would overwhelm the room. I initially preferred blue, but the price was so much higher I went with red. I decided to go with Acu-Rite over an unknown brand because I have their hygrometer that still works great five years later. Turns out, we love the clock. The red is bright and has a nice, smooth glow, but doesn't burn your eyes or discolor the room. I can easily read it from two rooms over, so I can do chores and still make sure my kids are online at the right time. There was a problem, though. Just a little over a month after hanging it on my wall, I woke up in the morning and the display was completely black. I tried another outlet, which confirmed that the clock did not work. Since it was past the return date on Amazon, I went to Acu-Rite's website and chatted with a representative. (Currently, they only offer support through chat and email due to COVID.) While on chat, I provided my receipt and pictures, and THAT SAME DAY, they shipped out a replacement. Two days later I have a working clock before the start of a new school week! I hope this new clock works for years like my hygrometer. While I can't speak to the longevity of this unit, many people seem happy with theirs based on the high reviews, and at the very least, I can say that Acu-Rite stood behind their warranty and acted extremely quickly with respect to sending out a replacement. ... show more
Reviewed in the United States on October 11, 2020 by Rhonda
    • Digital Wall Clock
Size: 14.5-Inch Color: Blue
After making several comparisons I chose this wall clock and it has already proven to be an ideal choice. It is easy to set up, keeps accurate time and the large numbers, etc on the screen can be easily seen from across the room which was a bonus for we senior citizens. I have no regrets about this purchase and planning on ordering more as gifts. ... show more
Reviewed in the United States on December 23, 2024 by Patricia Santee
    • Large, bright, easy to read from a long distance, caution
Size: 14.5-Inch Color: Red
This display is large and very bright. Its easy to read from long distances. It was easy to hang with 2 screws and the included screw template was perfect. The button placement and cable management features are well thought out. I had some apprehension because some reviewers said it had really bad accuracy and the time drifted. I've run this one for two weeks now and while that's not very long, I'm not seeing any noticeable drift in the accuracy. Will update this post if I begin to see that issue. The only issues I have with the clock, and the reason for a 4-star review instead of 5, are two simple features that are missing: (1) The clock will ONLY do 12 hour format. It won't do 24-hour format. If this was explicitly stated in the description I missed it, and was really looking for it to do the 24-hour format. (2) There is no brightness adjustment. The clock is extremely bright and very easy to read, but in even slightly dark environments like operations centers or some offices it is too bright. It can be glaring to look at directly, and casts enough light that it illuminates the room and I don't even need to turn the lights on to walk to my console. I don't understand why there isn't a dimmer for this clock, not even a high - med - low button. (3) (Added 2020-09-18) This clock does not indicate when there has been a power failure; it will reset and continue reporting the [incorrect] time as though nothing had happened. No blinking numbers, no blinking colon, nothing. Update 2020-09-20: I discovered an important quirk about this clock. The clock requires power from the 5V 1.2A adapter to operate, although it also accepts 2 AA batteries for backup in the event of a power failure. During the power failure mode with batteries installed it will keep the time but with no display, and resume with the correct time after power is restored. That behavior was to be expected, but here is the important part: If the backup batteries are not installed and the clock loses power, once power is restored and the clock resets there is NO INDICATION that there was ever a power outage. I had a power flash at approximately 2300 one evening, and I was halfway through the next day before I realized that the clock was an hour fast. The power blip had reset the clock but there was no way to tell that anything was wrong without comparing it to another reference source. Even a $5 wal-mart alarm clock will blink to let you know that the power was interrupted. So if you get this clock, be certain to install and maintain the backup batteries or a power outage may cause the clock to start lying to you. ... show more
Reviewed in the United States on September 14, 2020 by Bull 30290
    • I absolutely recommend it!
Size: 14.5-Inch Color: Red
I first saw this digital clock at Costco hanging on the wall for their employees, and I asked if they had it in stock. The staff member said they no longer carry it. I was disappointed because they no longer had it, but then I found it on Amazon. They are exactly as described! Great product, easy to use with vibrant colors and excellent quality. ... show more
Reviewed in the United States on October 21, 2025 by Wills
    • JUNK
Size: 18-Inch Color: Red
First one was great and lasted over a year then started to get dim. Replaced it with another, that one was dim out of the box. Returned and replaced AGAIN, now that one has completely died in under two months. JUNK.
Reviewed in the United States on November 7, 2025 by Collin W.
    • This clock is ideal!!
Size: 18-Inch Color: Red
Review Image by FLYNN FLYNN
I can't recommend this clock enough! I have to admit to being exceptionally pleased with it. It arrived exactly as I expected and is perfect for a home gym atmosphere. I mounted it high for wide visibility and it really set a great tone. The red color is nice and vibrant, not over powering but clearly visible from a wide angle and the picture attached is somewhat washed out (the color is more vibrant that it looks on camera). It was suuuper easy to program and I had it on, set, and mounted in 10 minutes. One note, and this is not a bad thing about it, but the battery compartment is strictly used in the event of power failure from the wall source. The clock display will go off, batteries don't keep it illuminated, but the settings and time are all kept current and resume when power is restored. So plug it in, put in the batteries, and disconnect the wall plug to mount it and there will be no issues with having to reset it. Overall for something as simple as a clock, I am really pleased and would definitely recommend it. Also, I didnt think the in room temperature reading would be useful, but since its in a home gym, it really is!! ... show more
Reviewed in the United States on July 9, 2020 by FLYNN FLYNN

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