FDK 8-Second Dog & Cat Thermometer, Fast Digital Pet Rectal Thermometer with Large Backlight Screen, Fever Alarm Flexible Comfortable Soft Tip, Waterproof Veterinary Supply for Animals °C/°F Review
By Dr. Lena Ortiz · Canine wellness writer · Published 2026-05-02 · Updated 2026-06-29
The FDK BW02 pairs an 8 second reading with a fever alarm and flexible soft tip, offering a fast, budget-friendly option backed by a strong 4.5 star average.
Owners who want a quick rectal reading with a built-in fever alert and a soft, flexible tip for comfort.
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You need a large sample size of reviews to feel confident, since this listing has only 48 reviews so far.
Priced 23% below the category median ($25.99 across 21 tracked models)
Our scorecard
4.2/5overall
Owner rating4.5/5
4.5 average across 48 owner ratings
Popularity1.0/5
48 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog food and health supplements we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
This is a fast digital rectal thermometer with an 8 second response time, a large backlit screen, and a built-in fever alarm.
Per the listing it has a flexible, waterproof soft tip and is rated for both indoor and outdoor use, ships with a CR2032 battery, and meets FDA specification. It measures 5.2 inches.
At $19.99 with 48 reviews at a 4.5 star average and 400 units bought last month, it's a newer but well-rated pick in the middle of the price range.
Pros
Fast 8 second reading time
Fever alarm built in
Flexible, comfortable soft tip
Waterproof and rated for indoor or outdoor use
Strong 4.5 star average
Cons
Smaller review count (48) than several competitors
Coin-cell CR2032 battery is less universally available than AAA
Mid-range price compared to the cheapest options in this roundup
Performance notes
The 8 second response time and fever alarm point to a design meant for quick, actionable readings, and the flexible soft tip paired with a waterproof build supports comfortable, repeatable use both indoors and outdoors.
What buyers say
A 4.5 star average across 48 reviews is a strong early signal, though the review count is smaller than more established sellers in this category. 400 units bought last month shows healthy, growing demand.
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