Do you need one Hygrometer?

Do you need to know what is the temperature inside and outside your house?
Nothing more simple.
crestastores uk presents today the mighty useful
Digital Wireless Hygrometer
crestastores ukDid you know ? The Hygrometer was invented in 1840 by Leonardo Da Vinci

A hygrometer is an instrument used to measure the amount of humidity and water vapour in the atmosphere, in soil, or in confined spaces. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass, a mechanical or electrical change in a substance as moisture is absorbed. By calibration and calculation, these measured quantities can lead to a measurement of humidity.

Specifications:Wireless Specifications

Line of sight wireless transmission (in open air): 100 meters, 30meters under most conditions

Frequency: 433 MHz

Update Rate: 60 seconds

Measurement Specifications

Measurement
Range , Accuracy, Resolution

Indoor Temperature
0 to 60 °C, ± 1 °C , 0.1 °C

Outdoor Temperature -40 to 60 °C, ± 1 °C, 0.1 °C

Indoor Humidity 10 to 99 %, ± 5% (only guaranteed between 20 to 90%), 1 %

Outdoor Humidity 10 to 99%, ± 5% (only guaranteed between 20 to 90%),1 %

Power ConsumptionBase station : 2 x AAA 1.5V Alkaline batteries
(Batteries are NOT included)

Remote sensor : 2 x AAA 1.5V Alkaline or Lithium batteries
(Batteries are NOT included)

Battery life: Minimum 24 months for base station

Minimum 24 months for remote thermometer sensor (use lithium batteries in cold weather climates less than -20 °C)

Display Console: Frame Dimensions (LxWxH): approx.7.4 x5.7 x 1.8cm/2.91×2.24×0.7”
LCD Dimensions (LxW): approx.4.1 x5.2cm/1.61×2.04”
Thermo-Hygrometer transmitter: Dimensions (LxWxH):approx.7.4 x5.3 x 2.0cm/2.91×2.08×0.78”