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Description
SureTemp® Plus 690 Thermometer with rectal probeProduct overview Gold standard in oral, axillary & rectal measurement For adults, children and newborns Precise results in less than 15 seconds Low risk of contamination thanks to disposable protective covers Flexible use thanks to battery operation SureTemp Plus 690 Thermometer The SureTemp Plus 690 Thermometer from Welch Allyn sets the gold standard for oral, axillary and rectal temperature measurements and is suitable for adults, children and
Product overview- Gold standard in oral, axillary & rectal measurement
- For adults, children and newborns
- Precise results in less than 15 seconds
- Low risk of contamination thanks to disposable protective covers
- Flexible use thanks to battery operation
SureTemp® Plus 690 Thermometer
The SureTemp® Plus 690 Thermometer from Welch Allyn sets the gold standard for oral, axillary and rectal temperature measurements and is suitable for adults, children and newborns. The large, backlit LCD and intuitive user interface ensure easy operation. This popular thermometer delivers reliable results in less than 15 seconds in Celsius or Fahrenheit. The recall button allows for easy retrieval of the last temperature measurement. Switching between oral, axillary and rectal modes is possible with a simple button press.
The risk of contamination is kept low thanks to the use of single-use probe covers and interchangeable probes. The ergonomic and non-slip design with a comfortable rubber grips enables safe handling. The digital thermometer also offers integrated storage for 25 probe covers, ensuring immediate accessibility. The reliable device operates on three AA batteries for the most convenient use. The battery life lasts for up to 6,000 measurements. An optional wall holder with ani-theft protection can be purchased seperately. The SureTemp® Plus 690 Thermometer comes with either an oral or rectal probe and probe well.
Product Details
- SureTemp® Plus 690 Thermometer from Welch Allyn
- Leading standard for oral, axillary and rectal temperature measurement
- Suitable for use in adults, children and newborns
- Large backlitLCD
- Highly intuitive user interface
- Temperature display in Celsius or Fahrenheit
- Delivers precise results in less than 15 seconds
- Quick switch between oral, axillary, or rectal mode with a button press
- Recall button displays last temperature measurement
- Low contamination risk due to single-use covers & interchangeable probes
- Ergonomic and non-slip design with rubber grips
- Integrated storage for 25 probe covers
- Battery-operated (3x AA battery) for flexible use
- Battery life sufficient for up to 6,000 measurements
- Optional wall mount with theft protection
- Available with either oral or rectal probe and probe well
- Probe cable length: 1 m
- Manufacturer warranty: 24 months
Technical Specifications
| Accuracy | ±0.2 °F (±0.1 °C) |
| Measurement Duration |
Oral: approx. 4-6 seconds Axillary (> 18 years): approx. 12-15 seconds Axillary (< 18 years): approx. 10-13 seconds Rectal: approx. 10-13 seconds |
| Dimensions | 215 x 81 x 62 mm |
| Weight | 357 g |
| Operating Temperature | 10-40 °C |
| Temperature Range | 26.7-43.3 °C |
| Power Supply | 3x 1.5 Vdc AA batteries |
| Battery Life | Approx. 6,000 measurements |
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4.0 ★★★★★
Based on 1477 reviews
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Product Reviews
★★★★★ 5
seekers paradise
Format: Kindle
Some of this book disturbed me a little but overall I found it amazing and fascinating. Possibilities abound in fantasy and can be just the thing you need to open up. Enjoy! I sure did.
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Reviewed in the United States on May 22, 2026
★★★★★ 3
We Should All Be a Little Stranger.
I understand why this book is often cited as one of the most important sci-fi books of all time. While reading it, you might begin to question why it’s lumped into the sci-fi category because the themes are very human. It is science fiction, that cannot be argued, but it’s also a coming of age story, a religious story and at its very core, a story about love.
Valentine Michael Smith was born and raised on Mars, but he is a human. He is brought back to Earth to learn what it means to be a human. This causes the reader to be forced to think outside of the box because Michael is not just coming from a different human culture, he has never learned what it means to be a human so any chapter told from his perspective is like an outsider, looking in on human culture. It’s wildly fascinating to think about ourselves in this manner.
As Michael progresses in his grokking of humans, he gets out to explore the world and to challenge it. Our concepts of God/religion and sex/love are strange to him. We tend to not really think about it from an outside perspective because this is just the way life is, but being forced to think about it, makes for a very fascinating read. I’d never really considered myself to be a “prude” but there were times that this book made me feel that way. At times, the reader must take a step back and remember that Heinlein did intend for many of the themes to be viewed as satire of what is commonly accepted.
There were a few negatives when reading this book, however. It was written in the sixties, which was a very different time from today in terms of the way women are spoken to/about and how they are treated. Heinlein wasn’t too bad in this regard, but there were a few sentences that made me stop for a second. Heinlein also has some of his characters go on these long drawn-out speech tangents that go on for pages and pages. I felt it was a little unnecessary to go on for that long, especially considered the length of the uncut version. It took me a little while to get through this book and normally I’m a pretty quick reader.
Negatives aside, I do feel like this book is important. The story itself is not challenging, but as I stated before, it challenges the reader to think about humans from an outside perspective and that is fascinating. He really doesn’t seem to rely too much on Sci-fi elements, preferring to focus on the human elements of the story (love, religion etc.). If you’re looking for something long and fulfilling, this may just be the sci-fi book for you!
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Reviewed in the United States on September 29, 2016
★★★★★ 5
Wicked Satire, yet Strangely Familiar
Format: Mass Market Paperback
Heinlein's satire is wicked and well-placed, reminiscent of Voltaire and Swift. IF you love British comedy, you'll love this book. Both come from the same sarcastic taproot. I'm still debating whether or not the main charter is Smith or Jubal. Maybe it is us, since we need to recognize that we are Juba, and must nurture, and eventually become like Smith.
Smith's reflective, contemplative message, reminds of Thomas A Kempis (
), James Allen (
), Lao Tzu (
). Smith's message is nothing new: as C. S. Lewis pointed out, "Really great moral teachers never do introduce new moralities: it is quacks and cranks who do that... The real job of every moral teacher is to keep on bringing us back, time after time, to the old simple principles which we are all so anxious not to see."
.
In fact, Smith's slogan "Thou art God" is merely run-of-the-mill Christianity:
* "Inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me."
* "Be ye therefore perfect, even as your Father which is in heaven is perfect."
* "Therefore, what manner of men ought ye to be? Verily I say unto you, even as I am."
* "Ye are gods; and all of you are children of the most High."
* "God became man so that man might be god."
* "It is a serious thing to live in a society of possible gods and goddesses to remember that the dullest and most uninteresting person you may talk to may one day be a creature which, if you saw it now, you would be strongly tempted to worship, or else a horror and corruption such as you now meet if at all only in a nightmare. . . . There are no ordinary people. You have never met a mere mortal, Nations, cultures, arts, civilizations, these are mortal, and their life is to ours as the life of a gnat. But it is immortals whom we joke with, work with, marry, snub, and exploit--immortal horrors or ever lasting splendours."
.
Heinlein seems to have stolen a page from Søren Kierkegaard, who tried to re-Christianize Christianity (
, 458). To paraphrase John, "Brethren, I write no new commandment unto you, but an old commandment which ye had from the beginning."
As I read this book, Smith struck me as oddly familiar. His first name, Michael, refers to the Archangel, the captain of the Lord's army. The second name, Valentine, is the patron saint of all shades of love, phileo, agape, eros, and romance. The last name, Smith, makes him Everyman.
But I wonder if there is something more. What happens to Smith is common to all founders of religions--Abraham, Jesus, Mohammed, and so forth. There is evolution, turns and twists of fate, and eventual triumph. However, there is a deeper nuance. Society begins with vulgarized Christianity, then there was the Fosterite Revolution, and another apostasy and commercialization of religion as a Megachurch. And lastly comes along Smith, with his Martian philosophy. This bears a strong parallel to the life of Joseph Smith
. In fact, both have a similar martyrdom: "Thou art God" versus "O Lord My God."
The satire can get tedious at time, but I think this flaw is excusable. As I read, I kept thinking that this book could loose about 1/3rd of the text. But on the other hand, the artistry and beauty of the wicked satire forces me to say, "Leave it alone."
Note: This book is the Q document for so much other fiction. I see shades of "Dune" here and there. Smith the new prophet is akin to Ender, the Speaker for the Dead. And if you have seen Star Trek: The Original Series episode "Charlie X," some of the elements will seem a bit too familiar. Keep in mind that this book came first, and that it does a much better job of mixing wit and wisdom than Kirk and Spock. There is no comparison--after reading this book, "Charlie X" rolls like a flat tire.
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Reviewed in the United States on July 9, 2007
★★★★★ 5
Really nice
Format: Paperback
Great read and gift
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Reviewed in the United States on May 31, 2026
★★★★★ 4
Classic, but a bit disappointed
I’ve always wanted to read this book. Heard a lot about it and it’s importance in the science fiction genre. But I didn’t care for Heinlein’s style of writing. There was a lot of subtle humor in it that was enjoyable, and I suspect he meant for it to be a caricature of humanity. I enjoyed the analysis of human nature throughout the story. But I was disappointed in the direction the story took toward the end. It seemed like a cheap way to develop the possibilities that had been laid out in the rest of the book. I want to believe human beings would value the opportunity and show up in a better way if such a thing really happened. I felt like the main character was so rich and unique in the beginning, but in the end, he felt flat and inscrutable. Having said all of that, maybe if I hadn’t been swayed by my own expectations, I would have enjoyed the story more. I’ll have to try some of his other books and see what I think!
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Reviewed in the United States on May 28, 2024