Digital Thermometer (Fast Pen style)  Oral, Rectal or axillary (armpit) measurements


​ZR-P100+ Features: 

  • FDA and CE Approved
  • Digital fever thermometer
  • Fahrenheit set as default but Celsius available and easily switched
  • Display range: 32.0 to 44.0°C (89.6 to 111.2°F)
  • Accuracy: 0.1°C (0.2°F)
  • Minimum scale: 0.1°C (0.1°F)
  • Response: From 10 seconds (Rectal)
  • Waterproof
  • Flexible tip for the highest comfort possible
  • Beeper function
  • Memory: last measuring reading
  • Auto-shut-off within 10 minutes
  • Battery: 1.5V button battery (replaceable)
  • Battery life: about 100 hours under continuous operating
  • Packing: Thermometer product + transparent case, manual, warranty card, color box and battery included.
  • To prove that we are absolutely certain you will love your Digital Thermometer, you are secured by a 1 year product warranty when you email through your purchase number.

Download your FREE Larger print instruction sheet (1.5 MB)

​Download your FREE Digital (Pen) Thermometer QUICK GUIDE (600K)

​FAQ’s – Zoe+Ruth Digital (Pen style) thermometer
 
Do you have an online guide to work this thermometer?
Just download the link on this page for a larger print version for downloadable instructions. Or just download it here.

Is this a basal thermometer?
Yes it is, this thermometer can be used to measure your basal body temperature. It gives temperature to one decimal place. The accuracy however is tested extensively.

Can the battery be replaced? If so, what kind?
Yes, the battery can be replaced. The type of battery is LR41, 1.5V.

Is this waterproof and easy to clean?
This thermometer is 100% waterproof and so easy to clean. The best way to clean the thermometer is by applying a disinfectant (eg 70% ethyl alcohol) with a damp cloth. This waterproof thermometer can be immersed in liquid or lukewarm water for thorough cleaning and disinfection.

Is this a Fahrenheit thermometer or Celsius thermometer?
Both. This thermometer is set for you to use out of the box in Fahrenheit mode. Although with a touch of the button you can change this easily. You then switch to Celsius by holding the ON/OFF button for 3 seconds when turning on. 


 

Fever Temperatures: Accuracy and Comparison

You can take a temperature using the mouth (oral), anus (rectal), armpit(axillary), or ear (tympanic). But the temperature readings vary depending on which one you use, and you need an accurate body temperature to determine if a fever is present.
​
Medical research hasn't determined an exact correlation between oral, rectal, ear, armpit, and forehead temperature measurements. Generally, the correlation of temperature results are as follows:
  • The average normal oral temperature is 98.6°F (37°C).
  • A rectal temperature is 0.5°F (0.3°C) to 1°F (0.6°C) higher than an oral temperature.
  • An ear (tympanic) temperature is 0.5°F (0.3°C) to 1°F (0.6°C) higher than an oral temperature.
  • An armpit (axillary) temperature is usually 0.5°F (0.3°C) to 1°F (0.6°C) lower than an oral temperature.
  • A forehead (temporal) scanner is usually 0.5°F (0.3°C) to 1°F (0.6°C)lower than an oral temperature.
It is important to remember:
  • Rectal temperatures are generally thought to be the most accurate for checking a young child's temperature.
  • Be sure to read and follow the instructions to obtain an accurate temperature. The information may also include how the results of the device correlate with the results from other methods of taking a temperature.
  • Plastic strip thermometers have some uses, but they aren't recommended for general home use. Unlike oral, rectal, and ear thermometers, plastic strip thermometers measure skin temperature, not body temperature.
When you talk with your doctor about your temperature, be sure to say what method was used to take the temperature.
Temperature comparison table. The temperature comparison table below will give you the range of temperature correlation with the different methods used to take a temperature. For information about taking accurate temperatures in infants and children, see the topic Body Temperature.
To use the table:
  • Find the method that you used to take a temperature.
  • Find the correct temperature range.
  • Look for the temperature range of the other methods that correlates to the method you used. For example:
    • If your 2-year-old child's oral temperature is 101°F (38.3°C), his or her rectal or ear temperature may be about 102°F (38.9°C). Remember, a child has a fever when his or her temperature is100.4°F (38°C) or higher, measured rectally.
    • If your axillary temperature is 100°F (37.8°C), your oral temperature is about 101°F (38.3°C).