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This indoor and outdoor temperature and humidity meter has the maximum and minimum temperature and humidity memory functions, you can also view historical temperature and humidity data, it has the time display. If you are looking for a new temperature and humidity meter, you can try this product, it will not let you down.

Features:
This meter supports measure indoor and outdoor temperature and humidity,  support ℃ and ℉ conversion, also has the function of maximum and minimum temperature and humidity memory functions.
Color Display with Backlight: The large LCD display screen supports touching button control, easy to operate, and the backlight function allows you to read the data at night.
The outdoor unit is XP4 waterproof, has a long service time, no need to worry about rainy weather, and the outdoor unit should be placed vertically to avert direct sunlight and direct rain for a long time.
This temperature and humidity meter also has the alarm clock function.
The back of the host with 2 magnetics for attached to metal object, also with the bracket for the host to stand oon the table.

Specifications:
Material: ABS
Type: with 1 emitter, with 3 emitters (optional)
Indoor temperature ranges: -4°F~158°F (-20°C~70°C)
Outdoor temperature ranges: -40°F~158°F (-40°C~0°C)
Humidity ranges: 20%-95%
Power:
Host: 3 * AAA batteries (NOT INCLUDED)
Emitter: 2 * AA batteries (NOT INCLUDED)
Temperature display unit: °C/°F optional (default is °C)
Temperature Resolution: 0.1°C/°F
Humidity Resolution: 1%
Refresh rate: 10 seconds
Error: temperature±1 ℃，humidity±15%
Wireless reception ranges: 100 meters
Radio Frequency: 433 MHz
Package size:
With 1 emitter: 155 * 135 * 33mm / 6.1 * 5.3 * 1.3in
With 3 emitters: 135 * 135 * 60mm / 5.3 * 5.3 * 2.4in
Package weight:
With 1 emitter: 245g / 8.6ounce
With 3 emitters: 367g / 12.9ounce
With 1 emitter Packing list:
1 * Temperature Humidity Meter
1 * Emitter
OR
With 3 emitters Packing list:
1 * Temperature Humidity Meter
3 * Emitters