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🌿 Timeless precision meets modern sustainability—measure your health the classic way!
The GERATHERM Classic Fever Thermometer is a handcrafted, battery-free analogue device made in Germany with patented technology. It uses a safe, mercury-free liquid metal alloy for precise temperature readings within ±0.15°C, suitable for oral, axillary, and rectal use. Fully waterproof, hypoallergenic, and 100% recyclable, it comes with a protective case and reset tool, blending traditional reliability with eco-conscious design for the discerning professional.









| ASIN | B01N12TC78 |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | 5,949 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 2 in Rectal, Oral & Axillar Thermometers |
| Brand | Geratherm |
| Colour | transparent |
| Customer Reviews | 4.2 out of 5 stars 863 Reviews |
| Display Type | Analog |
| Global Trade Identification Number | 04018674454681 |
| Immersion Depth | 15 Centimetres |
| Included Components | Fever thermometer, reset aid and storage case |
| Included components | Fever thermometer, reset aid and storage case |
| Indoor Outdoor Usage | Indoor |
| Item Length | 12.7 Centimetres |
| Item Weight | 10 Grams |
| Lower Temperature Rating | 37 Degrees Celsius |
| Manufacturer | Geratherm Medical AG |
| Manufacturer Part Number | classic |
| Model Name | classic |
| Model Number | GT-1000 |
| Outer Material | Glass |
| Outer material | Glass |
| Power Source | Analogue without battery |
| Product Care Instructions | Clean or disinfect before and after each use and reset the measuring liquid if necessary. |
| Response Time | 4 minutes |
| Reusability | Reusable |
| Special Features | Waterproof |
| Special feature | Waterproof |
| Specification Met | CE |
| Style Name | Classic |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 42 Degrees Celsius |
E**W
Just like a mercury one- no more broken battery ones- I'm a very happy customer
Brilliant- shakes down just I remember doing as a child with my mother's mercury thermometers- it does require a few good flicks of the wrist and my children can't yet do it- but I can easily. So as far as I'm concerned, easy to use if you can move your wrists well. I love that there's no battery as I was sick of battery thermometers never having a working battery when you needed and corroding. I'd love it a tiny bit cheaper, but I'm happy to pay for what I get. It takes the temp, can be seen held at the right angle( again like a mercury one) and is everything I wanted. I can also report, unfortunately, on what happens when your child drops it on a tiled floor and breaks it. The glass isn't shattered, but the metal end fell off and what appeared like silver liquid metal fell onto the floor. It wiped up easily on tiles. I will be buying another immediately and not leave it near a crying, flailing, poorly child even for the briefest of times! Lesson learnt.
W**R
Great old fashioned, no battery or frills, thermometer. Exactly what I wanted.
I'm fed up with buying thermometers that I need at the time, then I don't use them for a few years and I need new batteries which are tiny and difficult to fit. Now it's about £30 for a thermometer, I believe they take normal batteries but from the reviews they aren't always accurate. I wanted a no frills, no battery, old fashioned simple to use thermometer. And now I've got it. Ace. Tried it and it works, reading is what I would expect. From the product reviews I knew I had to shake down the thermometer, and you do have to give it a bit of welly but it is quite simple. Very pleased.
K**A
Great
Great, thanks
A**R
Looks good but didn't work
Not impressed. Was happy to have an old-fashioned thermometer with liquid, but turned out not to work, liquid came up once but never got back to zero when shaken. Also received with a slight crack on the side so perhaps too fragile for transport?
G**N
Takes a bit of getting used to but basically very good
After being feverish recently and finding that neither of the two existing digital thermometers in the house were working even after a change of battery, (I mean what's the ------- point!!), I decided to go 'vintage' with this old style, analogue thermometer, that can hopefully sit in the cupboard for a year or three, and still work when actually needed without batteries! Like other reviewers I found that it seemed to read about a degree C. low, so I checked it out by putting it in a glass of water at @40C, alongside a brewing thermometer that I know to be fairly reliable, though with a wider range. Good result, -both thermometers read roughly the same, and the 'classic' thermometer was actually quite fast, reaching maximum temperature in considerably less than a minute. I guess my 'normal' temperature must be slightly low. Needs a bit of shaking to get the liquid back down, but the trick seems to be to let the thermometer cool for a minute or two before trying so there's space! The holder does help, making accidentally letting go less likely. On the evidence so far, I can thoroughly recommend.
J**L
Requires a vigorous shake
We have had mixed experiences using the new electronic thermometers so we bought this traditional glass one to use. It appears well made but we had initial reading errors. This was down to a need to shake the thermometer quite vigorously in order to get the reading to below 37 as it was well above this on arrival from Amazon. It did state the need to do this in the instructions and I guess we have seen nurses doing this in the very distant past. So its okay but probably not as easy to use as expected.
J**R
rhermometer
very good traditional thermometer,no batteries,no recharging,simple and effective
R**W
It works
It takes a long time to shake down. You have to tilt the thermometer at exactly the right angle in order to read it. 4 minutes minimum is a long time to wait to get a reading. The reading is accurate. Better than a rechargeable one in a power cut.
C**.
Gute Verarbeitung, einfache Handhabung, nachhaltig
Ich habe mir dieses Thermometer geholt, weil alle Thermometer in meinem Haushalt entweder kaputt waren, weil es sich um Billigprodukte handelte, oder ihre Batterie leer war. Da man im Idealfall nur selten ein Thermometer nutzen muss, vergisst man leicht, die Batterie zu wechseln - es fällt einem erst beim nächsten Infekt auf, und da hat man keine Lust/Energie sich im Laden eine neue Batterie zu besorgen. Bei einem analogen Thermometer hat man ein Gerät, das nicht auf Batterien angewiesen ist und daher 1) jederzeit einsatzbereit ist, 2) unanfällig für technische Defekte ist, 3) keine Folgekosten mit sich bringt und 4) nachhaltig ist. Das Thermometer wirkt robust, es ist gut verarbeitet und leicht zu reinigen. Da ich bisher nur digitale Thermometer kannte, ist es für mich noch etwas ungewohnt, ein Thermometer vor Benutzung zu schütteln, aber man gewöhnt sich schnell daran. Die Messdauer ist bei einem analogen Thermometer etwas länger als bei einem digitalen (min. 4 Minuten), aber die Messung ist genauso genau. Die Lieferung erfolgte sehr schnell (1-2 Tage) und kostenlos. Hergestellt wird das Thermometer in Deutschland, wodurch der Transportweg entsprechend kürzer - und umweltfreundlicher - ist. Insgesamt bin ich sehr zufrieden mit diesem Einkauf und vergebe 5 Sterne. :)
D**E
conforme
parfait
D**P
El termómetro de mi infancia
Fiable. Tuve mis dudas cuando lo compre por algunos comentarios que me habia leido por aqui, pero un buen termometro. Exactamente igual que los de mi infancia. Antes de ponertelo lo miras para asegurarte de que esta bajado, te lo pones, lo dejas 3-5 minutos para darle tiempo que dilate y suba correctamente hasta tu temperatura, lo miras girandolo ligeramente para que la luz incida de tal manera que puedas ver cuanto ha subido lo plateado sobre el azul, y luego lo sacudes desde el codo (como si tuvieras la mano mojada y te sacudieras vigorosamente las gotas) para volver a bajarlo, lo limpias si hace falta, y lo guardas. A diferencia de uno electrónico, nunca te fallara, ni se quedara sin bateria. Y para romperlo, habra que empeñarse bastante.
J**E
Doesn't work, but perfect customer service
This is stuck at 42C and won't move. I shook it, placed it in a glass of cold water, but nothing moves it. It arrived that way, so I haven't been able to use it even once! I contacted the company and immediately they offered a refund. Their customer service is great!
O**N
Not accurate
I bought this thermometer hoping that it will be better, than any electronic. Turns out, it shows my temperature 0.5 degree lower, than it actually is, even after 10 minutes of measuring.
Trustpilot
2 months ago
2 days ago