Comparison Dr. Frei T-20 vs Dr. Frei T-30

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	Dr. Frei T-20	Dr. Frei T-30
	from $6.28 up to $6.84 Outdated Product	from $8.64 up to $10.64 Outdated Product
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Main		Fast and accurate temperature measurement. Flexible tip. Sound alerts.
Type	contact	contact
Application area	axillary oral rectal	axillary oral rectal
Measurements
Measurement duration	10 с	10 с
Measurement range	32-43 °C	32-43 °C
Measurement accuracy	0.1 °C	0.1 °C
General
Reading memory	1 pcs	1 pcs
Sound signal
Waterproof case
Flexible tip
Power source		1хLR41
Added to E-Catalog	february 2016	february 2016

Power source

Type of batteries used in thermometers.

— AA. The ubiquitous battery, commonly found everywhere batteries are sold, operates at 1.5 volts, making it widely accessible.

— AAA. The batteries, which are a compact alternative to AA batteries with the same 1.5V voltage, are widely used and suitable for small devices.

— CR2032. One of the most popular types of batteries, with a diameter of 20 mm and a thickness of 3.2 mm. Actual for use in compact devices.