SKU: 95958166756

Redback A4500D

Sale price$434.25 Regular price$482.50
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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

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Description

Redback A4500DRedback A4500D 24 Hour 7 Day Timer With Evac Tone Generator. A weekly timer and Evacuation controller all housed in a convenient 1RU rack mount chassis. A total of 50 event switching times are available through the timing functions. Each event can be set to turn on any single day of the week or on multiple days, from 1 sec up to 24 hours. When a timing event is activated, an audio file will be played and output through the RCA line level output. There

Redback A4500D 24 Hour 7 Day Timer With Evac Tone Generator.

A weekly timer and Evacuation controller all housed in a convenient 1RU rack mount chassis.

A total of 50 “event” switching times are available through the timing functions. Each event can be set to turn on any single day of the week or on multiple days, from 1 sec up to 24 hours. When a timing event is activated, an audio file will be played and output through the RCA line level output. There are 99 audio playback options for the timing events, which include the Bell, Prebell, Music and outputs 5-99. A Micro SD card which is supplied, houses all the audio files to be played as well as storing all the timing events. The timing events can be programmed via the unit’s front buttons or they can be programmed with the supplied PC software.

The timing events can also be programmed to activate only a relay with no audio output. This is activated by setting the output to the “relay” option in the programming setup. Once activated the common 24V Out will become active. 

The Evacuation controller is designed around industry standard building emergency alert/evacuate requirements. When connected to a paging system amplifier, building occupants can be alerted and/or evacuated in the event of an emergency e.g. fire, gas leak, bomb scare, earthquake. Alert & Evac switches on the front of the unit are fitted with safety covers to prevent accidental operation. 

The Alert, Evacuation and Bell tones and the cancel function are triggered by the front switches, or by the rear terminal contacts for remote activation.  The Alert, Evac, Bell and Cancel functions can also be activated via remote plates or the A 4660A Paging Console. 

The Isolate function can be remotely activated via the A 4579 wall plate

Switched 24V DC Out connections are provided for Bell, Alert, Evac or a Common out. These contacts are for connection of override relays in remote volume controls, warning strobes, bells etc. 

The alert and evacuation tones are stored on the Micro SD card (Emergency Tones which conform to AS1670.4 are supplied) to allow the user to provide any tones they require. 

The Evacuation mode has a voice over option for the playback of an evacuation message every third cycle of the evac tone. The voice over message is also stored on the Micro SD card and is DIP switch enabled.  Note: The audio files must be in MP3 format and are converted by the supplied PC software to work with the timer.

100% developed, designed & assembled in Australia. 10yr warranty

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 95958166756

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4.2 ★★★★★
Based on 6 reviews
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Product Reviews
A
Amazon Customer
Dallas, US
★★★★★ 5
Impressive quality with a high end look and feel
Size: Large, Color: Light Beige
This Amazon Essentials linen blend shirt is beautiful. The quality is on par with high end brand tops that I have, and it does not disappoint. The light beige color is flattering and very versatile. The quality of the material and stitching is top notch. The fabric of the shirt is 55% linen and 45% cotton which is fantastic for the warmer months. The breathability and comfort are unsurpassed. The top washes well in a cold cycle, and I hang it to dry. I find that steaming the shirt after it dries takes out any wrinkles and really softens the fabric. The size chart is accurate for a relaxed look as described, but if you prefer a more fitted look you may want to size down. The drawstring waist gives the top a fun and flattering peplum look with a beautiful drape to it. Overall, I am thrilled with this shirt and would highly recommend. At the current price of $21.00 this is an excellent deal for a high quality top at an extremely affordable price. I just wish this came in more colors!
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Reviewed in the United States on May 12, 2026
Z
ZZBC
Phoenix, US
★★★★★ 3
As advertsied but not for me
Size: Small, Color: Light Beige
The shirt is exactly as advertised. I did not find it flattering on me, and likely won't be wearing it. That doesn't mean it is a bad shirt, it just isn't the right one for me. If you want something lightweight for summer and like this shirt style, this may be a good choice. Otherwise, find something you like more.
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Reviewed in the United States on May 24, 2026
M
Mariah
Carnegie, US
★★★★★ 5
Relaxed Fit Linen Blend Button Down Shirt
Size: Large, Color: Light Beige, Size: Large, Color: Light Beige
I like this shirt and it actually looks better than it does in the attached photo. The shirt is 55% linen and I took the photo without ironing because I wanted to show that this shirt is better than many linen shirts when it comes to wrinkles. In fact, I can steam the wrinkles out and don’t need to drag out the iron. The shirt is cool and comfortable. I like that you can use the draw string waist to make it more fitted. The button holes are a little small, which makes it harder for those of us who have arthritis to use. I will just leave most of the buttons fastened and slip the shirt over my head. It seems very well made. I looked it over carefully and did not find any loose threads or missed stitches. I think this is a good value.
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Reviewed in the United States on May 28, 2026
A
awesome
Boise, US
★★★★★ 5
Cute summer top
Size: Large, Color: Light Beige, Size: Large, Color: Light Beige
Cute and comfortable linen blend shirt that’s perfect for summer. The fit is relaxed without looking oversized or sloppy, which I really like. I usually wear between a large and extra large depending on the chest area, and I ordered the large based on the size chart. It fit correctly according to the measurements, but I personally think the extra large may have been a little more comfortable for me through the bust. For reference, I’m around a 33-inch waist and a 42C bust. The light beige color is really pretty and easy to style with denim jeans, jean skirts, or sandals for a casual summer look. Since it’s a lighter-colored cotton-linen blend, you’ll want to wear the proper undergarments underneath depending on your skin tone, which is pretty normal for linen-style fabrics. I also love the adjustable cinched waist because it gives the shirt a more flattering shape without making it tight. Overall, it’s a beautiful lightweight top with a nice relaxed fit, and I definitely recommend it.
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Reviewed in the United States on May 16, 2026
N
Nicole B.
Cuba, US
★★★★★ 4
Linen/Cotton Blend; Machine Wash Cold, Lay Flat or Hang to Dry; Real Buttons
Size: Medium, Color: Light Beige, Size: Medium, Color: Light Beige
Amazon Essentials Women's Relaxed Fit Linen Blend Wide Sleeve Shirt with Adjustable Tie Waist Review: I got this for my daughter mostly (we trade clothes back and forth), and she finds it very comfortable and flattering. For reference, her measurements are about: 39 inches around the bust 35 inches around the hips/stomach  And 42 inches around the bottom   I ordered her a Medium, and it fits her very well, but it's on the edge of being big. If she lost a little weight, it might seem big but fit me a little better, but it fits her very well now. It's a very breathable fabric, and the cut is flattering. It is a little see through, not majorly, but she says she will probably wear it with a white or nude tank top as an underlayer, possibly with a bra too, but at that point it might be too hot for a summer outfit. It could be dressed up or down and would pair well with a skirt or jeans, with sandals or heels or cute sneakers. It could also be worn fully unbuttoned over a tank top, if one wanted. The buttons are real, and seem well-sewn. The collar is initially reluctant to stay open, but it will relax in time or one of us could iron it like that, but we're unlikely to, lol.   The only complaint she had was that when she goes to raise up her arms and hold them horizontally out in front of herself, the sleeves and shoulders become too tight across the back and up the arms, although this is a very common problem, unfortunately, with women's/girl's clothing. We'll have to live with it, but it will keep the shirt from being worn as often as it might have been. We're definitely happy for the natural fibers (a linen/cotton blend). We are both excited to wear and style it. I'll include photos.
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Reviewed in the United States on May 14, 2026

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