Blue Jay Rapid Digital Thermometer Oral Rectal Underarm 10 Second

Fast, accurate temperature readings in as little as 10 seconds — the Blue Jay Rapid Digital Thermometer is a reliable household thermometer suitable for oral, rectal, or underarm use across all ages, from newborns to adults. Waterproof construction makes it easy to clean between uses, and the easy-to-read digital LCD display shows the reading clearly with a soft beep when measurement is complete. One-button operation keeps it simple for any user, and the last temperature reading is stored in memory for reference. Switchable between Fahrenheit and Celsius. Includes a protective plastic case. Low battery alert and automatic shut-off extend battery life.

Key Features

• Fast 10-second readings — quick temperature measurement for all ages
• Three measurement methods — oral, rectal, or underarm use
• Waterproof — easy to clean and sanitize between uses
• Easy-to-read digital LCD display — clear reading with soft beep alert
• One-button operation — simple for any user
• Last reading stored in memory — for easy reference after measurement
• Switchable between Fahrenheit and Celsius
• Low battery alert and automatic shut-off
• Protective plastic case included
• Suitable for babies, children, and adults

Specifications

• SKU: BJ230200
• Brand: Blue Jay
• Measurement Methods: Oral, rectal, underarm
• Reading Time: As little as 10 seconds
• Display: Digital LCD
• Temperature Scale: Fahrenheit and Celsius (switchable)
• Waterproof: Yes
• Memory: Last reading stored
• Includes: Thermometer and protective plastic case
• Suitable For: Babies, children, and adults

Ideal For

• Households with children or infants who need a fast, reliable thermometer for oral, rectal, or underarm temperature measurement
• Adults monitoring their own temperature during illness who need a simple, one-button thermometer with a clear display
• Caregivers and home health aides who need a waterproof thermometer that can be cleaned and sanitized between uses
• Travel and on-the-go use where a compact thermometer with a protective case is needed
• Anyone who wants a straightforward, no-fuss digital thermometer with memory recall and automatic shut-off for everyday household use

Frequently Asked Questions

Which measurement method is most accurate — oral, rectal, or underarm?
Rectal temperature measurement is generally considered the most accurate method for core body temperature, particularly for infants and young children who cannot hold a thermometer under the tongue. Oral measurement is the most common method for older children and adults and provides a reliable reading when the thermometer is placed correctly under the tongue with the mouth closed. Underarm (axillary) measurement is the least accurate of the three methods — it typically reads 0.5 to 1 degree Fahrenheit lower than oral temperature — but is the most convenient and least invasive option. For clinical decision-making, consult your healthcare provider about which method is most appropriate for your situation.

How do I clean the thermometer between uses?
The thermometer is waterproof, which makes cleaning straightforward. Wipe the probe with a cotton ball or swab moistened with rubbing alcohol (isopropyl alcohol 70% or higher) after each use, then rinse with cool water and allow to air dry before storing in the protective case. Do not submerge the entire thermometer in liquid or use hot water, which could damage the electronics. For rectal use, clean the probe thoroughly with alcohol before and after each measurement.

How do I switch between Fahrenheit and Celsius?
The thermometer can be switched between Fahrenheit and Celsius display modes. Refer to the included user manual for the specific button sequence to toggle between temperature scales — the process typically involves holding the power button for a few seconds while the thermometer is off or in standby mode. The selected scale is retained in memory until changed again.

What does the memory function do?
The thermometer stores the last temperature reading in memory so it can be recalled after the measurement session ends. This is useful when the reading needs to be recorded or communicated to a healthcare provider after the thermometer has been removed from the measurement site. To recall the last reading, turn on the thermometer — the previous reading will typically display briefly before the device enters measurement mode. Refer to the user manual for the specific memory recall procedure for this model.