--- product_id: 192000841 title: "Digital Fever Thermometer, Oral Rectal Underarm, Baby & Adult" brand: "citizen" price: "€ 18.53" currency: EUR in_stock: true reviews_count: 13 category: "Citizen" url: https://www.desertcart.hr/products/192000841-digital-fever-thermometer-oral-rectal-underarm-baby-and-adult store_origin: HR region: Croatia --- # IPX5 waterproof & washable Antibacterial protection 60-sec fast reading Digital Fever Thermometer, Oral Rectal Underarm, Baby & Adult **Brand:** citizen **Price:** € 18.53 **Availability:** ✅ In Stock ## Summary > 🌡️ Stay ahead of the curve with precision you can trust! ## Quick Answers - **What is this?** Digital Fever Thermometer, Oral Rectal Underarm, Baby & Adult by citizen - **How much does it cost?** € 18.53 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/192000841-digital-fever-thermometer-oral-rectal-underarm-baby-and-adult) ## Best For - citizen enthusiasts ## Why This Product - Trusted citizen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Fever Alarm:** Instant alert if your temperature signals a fever, so you never miss a critical health warning. - • **One-Button Simplicity:** Effortless operation with a single button and clear 3-digit LCD display—perfect for busy professionals and parents. - • **Precision in a Minute:** Get ultra-accurate temperature readings in just 60 seconds—faster than traditional mercury thermometers. - • **Clean & Safe for All Ages:** IPX5 water resistance and antibacterial agents ensure hygienic use for newborns, kids, and adults alike. - • **Memory Recall Convenience:** Automatically stores your last reading for easy tracking—ideal for ovulation monitoring and family health management. ## Overview The Citizen Digital Thermometer CTA303 is a versatile, fast, and hygienic 3-in-1 device designed for oral, underarm, and rectal use. Featuring antibacterial protection, IPX5 waterproof rating, and a fever alarm, it delivers accurate basal body temperature readings in 60 seconds. Its one-button operation, memory recall, and protective case make it an essential health tool for families, ovulation tracking, and newborn care. ## Description Free delivery and returns on eligible orders of £20 or more. Buy Citizen Digital Thermometer for Basal Body Temperature Readings - Body Temperature Thermometer with Fever Alarm and One Button Operation - Adults, Kids, Ovulation, Newborn, and Baby Thermometers at desertcart UK. Review: Easy and accurate way to check temperature - Straight out of the box I put this in my mouth and it worked fine. It defaults to 37 Lo then after one minute it gives the temperature. It checks with a ear thermometer. Much better than a mercury thermometer. The audio could be a problem for older users as the beep is very high frequency which could be outside the range of hearing for some, me included. Just time it. Review: Good product - Have used this for a few months now . Easy to use and to clean . ## Features - IDEAL FOR FAMILY USE. The digital temperature thermometer from Citizen includes antibacterial agents, making it perfect for oral, underarm, and rectal use; and the ideal digital thermometer for adults, kids, and babies. This protection also makes it a suitable thermometer for newborns and for use as a basal thermometer for ovulation - EASY CLEAN THERMOMETER. Certified with an IPX5 rating, the temperature thermometer is a water-resistant and fully washable device, making cleaning a fast, safe and easy process. Simply wash the tip of the basal body temperature thermometer with soapy water, especially when using as a baby thermometer - ONE BUTTON OPERATION. The temperature thermometer offers one-button operation, with a 3 digit LCD display and memory recall. After taking your temperature the thermometer will alert you if your results are showing signs of a high temperature with a fever alarm; with a higher accuracy than a mercury thermometer - MEMORY RECALL. When turning on the device, it will automatically display the last recorded body temperature thermometer data; delivering precise temperature results in a span of 60 seconds for oral or rectal use, and 120 seconds for underarm use. This gives multi-use as a medical thermometer, thermometer for baby use, or as a thermometer for ovulation - STORAGE CASE. The CTA303 underarm and oral thermometer comes equipped with its own protective case; designed to store and protect the thermometer. The case protects the thermometer from dust and external agents that could damage the tip; making it a great choice for a temperature thermometer for kids or as a baby thermometer with newborn use ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01LZY3BRT | | Age Range Description | Newborn, Infant, Toddler, Kid, Youth, Adult, Senior | | Age range (description) | Newborn, Infant, Toddler, Kid, Youth, Adult, Senior | | Best Sellers Rank | 34,774 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 12 in Rectal, Oral & Axillar Thermometers | | Brand | Citizen | | Colour | White | | Country Of Origin | China | | Customer Reviews | 4.4 out of 5 stars 10,776 Reviews | | Display Type | Digital | | Global Trade Identification Number | 04580193651273 | | Immersion Depth | 7 Centimetres | | Included Components | Battery, Protective case, Usermanual | | Included components | Battery, Protective case, Usermanual | | Indoor Outdoor Usage | Indoor | | Item Length | 2.3 Centimetres | | Item Weight | 10.2 Grams | | Lower Temperature Rating | 37.5 Degrees Celsius | | Manufacturer | Citizen | | Manufacturer Part Number | CTA303 | | Model Name | Citizen CTA303 3-in-1 Digital Thermometer | | Model Number | CTA-303 | | Number of Batteries | 1 LR41 batteries required. (included) | | Outer Material | Plastic | | Outer material | Plastic | | Power Source | Battery Powered | | Product Care Instructions | Water resistant and fully washable (waterproof and fully washable) | | Resolution | 0.1 degrees_celsius | | Response Time | 60 seconds | | Reusability | Rechargeable | | Special Features | Antibacterial, Fast Reading System, High Accuracy, Low Battery Indicator, Protective case included, Ultra Clear Screen, C/F switching, 3‑in‑1 measurement (oral, armpit, rectal), Built‑in buzzer, Auto Off, Fever alarm, Memory recall, Waterproof | | Special feature | Antibacterial, Fast Reading System, High Accuracy, Low Battery Indicator, Protective case included, Ultra Clear Screen, C/F switching, 3‑in‑1 measurement (oral, armpit, rectal), Built‑in buzzer, Auto Off, Fever alarm, Memory recall, Waterproof Special feature Antibacterial, Fast Reading System, High Accuracy, Low Battery Indicator, Protective case included, Ultra Clear Screen, C/F switching, 3‑in‑1 measurement (oral, armpit, rectal), Built‑in buzzer, Auto Off, Fever alarm, Memory recall, Waterproof See more | | Style Name | Contemporary | | Unit Count | 1.0 count | | Upper Temperature Rating | 42.9 Degrees Celsius | ## Product Details - **Brand:** Citizen - **Special feature:** Auto Off - **Colour:** White - **Age range (description):** Adult - **Included components:** Battery - **Outer material:** Plastic - **Display type:** Digital - **Product care instructions:** Water resistant and fully washable (waterproof and fully washable) - **Unit count:** 1.0 Count - **Power source:** Battery Powered ## Images ![Digital Fever Thermometer, Oral Rectal Underarm, Baby & Adult - Image 1](https://m.media-amazon.com/images/I/61J0yZTGmwL.jpg) ## Questions & Answers **Q: What size battery does this need? Is one supplied with it?** A: The thermometer takes an LR41 Alkaline Button Cell which is included in the box. **Q: What is the measuring range in Celsius, please?** A: Hello The range is varying by 0.2 degrees **Q: Could be used to track ovulation?** A: No idea , not reliable for plain taking of temperatures both of my ones were always out by at least 2 or 3 degrees . I would look more a specific product , than these cheap un reliable thermometers . Old fashioned analogue one take more time give better temperature results ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy and accurate way to check temperature *by B***S on 20 March 2023* Straight out of the box I put this in my mouth and it worked fine. It defaults to 37 Lo then after one minute it gives the temperature. It checks with a ear thermometer. Much better than a mercury thermometer. The audio could be a problem for older users as the beep is very high frequency which could be outside the range of hearing for some, me included. Just time it. ### ⭐⭐⭐⭐⭐ Good product *by S***H on 22 November 2025* Have used this for a few months now . Easy to use and to clean . ### ⭐⭐⭐⭐ Digital thermometer *by A***R on 18 April 2026* Does the job well. A vast improvement on my old glass/mercury thermometer. ## Frequently Bought Together - Citizen Digital Thermometer for Basal Body Temperature Readings - Body Temperature Thermometer with Fever Alarm and One Button Operation - Adults, Kids, Ovulation, Newborn, and Baby Thermometers - Forehead Thermometer for Adults Kids, No-Touch Infrared LCD Display Digital Baby Thermometers Body Temperature Thermometer --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/192000841-digital-fever-thermometer-oral-rectal-underarm-baby-and-adult](https://www.desertcart.hr/products/192000841-digital-fever-thermometer-oral-rectal-underarm-baby-and-adult) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-12*