RELIABLE AND ACCURATE: Measures Basal Body Temperature (BBT) to 1/100th of a degree precision (e.g. 97.41 F) in Fahrenheit or Celsius. Perfect for Trying to Conceive (TTC) Naturally.
EASY TO USE: Simply place under tongue and close mouth for about 90 seconds; Soft Beeping Alarm indicates the completion of the measurement.
LARGE BLUE SCREEN WITH BACKLIT: Easy to read in the dark. Recall 30 temperature records in memory.
WATERPROOF AND FLEXIBLE TIP: Waterproof and Flexible thermometer tip for easy to use and clean.
MONITOR YOUR OVULATION CYCLE with Premom: Use Premom app to do the charting and interpretation for you. Just log the temps in the premom app. It will identify your BBT spike, graph your temps, and create your coverline -- so you can identify your fertile window easily.
Reading times vary by model: quick-read units can return an underarm result in about 8–10 seconds, while others take roughly 30–60 seconds.
Most models are multi-use and explicitly support oral, rectal and underarm (axillary) measurements.
Battery types vary by model and include LR41, CR1220, CR1632 and CR2032 cells.
Common display features include large LCD screens, backlighting on some models, visual fever indicators (color-coded or fever bars), and memory recall of the last reading.
Care instructions vary: many recommend spot- or wipe-cleaning the probe, some allow rinsing, a few mention waterproof tips or housings, and at least one cautions against fully submerging the unit.
Common included items are batteries, a protective or carrying case, and disposable probe covers on some models.
Listings vary: some are labeled “All Ages,” others specify infant ranges like “0–6 months,” and several are marked “Newborn and up.”