Indoor Outdoor Wireless Thermohygrometer Temperature Humidity Monitoring Weather Clock Digital Hygrometer

This is a weather clock can clearly show the temperature and humidity easy to read can show the humidity and temperature trends.

Features:
It has memory function and can record the highest and lowest temperature and humidity.
Historical temperature and humidity data can be viewed.
There are two high magnetics in the rear shells of the main engine which can be attached to metal objects.
The back of the main engine is equipped with a bracket for standing in a horizontal position.
High sensitivity touching button control easy to operate.
With backlight automatically turn off the backlight after 10 seconds without operation.
The outdoor unit can be suspended by hanging holes or can stand on the horizontal plane.
Up to 3 transmitters can be connected. Transmitters waterproof: IPX4.
Comfort indicator temperature and humidity trend indicator. Degrees Celsius and Fahrenheit can be converted.

Specifications:
Type: 12 (optional)
Type1: one transmitters one explosion-proof screw set
Type 2: three transmitters  three explosion-proof screw set
Material: plastic
Transmitters waterproof: IPX4
Indoor temperature ranges: -4° F-158 °F (-20° C-70 °C)
Outdoor temperature ranges: -40° F-158 °F (-40°C-70°C)
Humidity ranges: 20%-95%
Comfort display: drying comfortable moist
Temperature display unit: °C/°F optional (default: °C)
Refresh rate: 10 seconds
Radio frequency: 433 MHz
Power supplys: AAA battery (not included)
Item size: 
Host: 114 * 96 * 24mm / 4.5 * 3.8 * 0.9in
Transmitters: 100 * 35 * 20mm / 3.9 * 1.4 * 0.8in
Item weight: 
Host: 142g / 5.0ounce
Transmitters: 40g / 1.4ounce
Package size: 155 * 135 * 33mm / 6.1 * 5.3 * 1.3in
Package weight: 
Type1: 232g / 8.2ounce
Type2: 320g / 11.3ounce
Packing List:
Type1:
1 * Host
1 * Transmitters
2 * Pearl Cotton Bags
1 * English Instruction
1 * Explosion-proof Screw Set
1 * Leather Box
Type2:
1 * Host
3 * Transmitters
4 * Pearl Cotton Bags
1 * English Instruction
3 * Explosion-proof Screw Set
1 * Leather Box