Comparison La Crosse WS6821A vs La Crosse WS6825

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	La Crosse WS6821A	La Crosse WS6825
	from £99.94 Outdated Product	from £115.80 Outdated Product
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Main	Decent range of outdoor transmitter. Dew point and heat index measurement. Recording and display of Min/Max temperature values. Constant illumination from a network.
Measurements	weather forecast internal temperature external temperature internal humidity external humidity dew point	weather forecast internal temperature external temperature internal humidity external humidity dew point
Specs
Type of external sensor	wireless	wireless
Number of sensors	1 pcs
Effective range	90 m	90 m
Indoor measuring range	0 °C ~ +50 °C	0 °C ~ +50 °C /+32 °F ~ +122 °F/
Outdoor measuring range	-40 °C ~ +60 °C	-40 °C ~ +60 °C /-40 ~ +140 °F/
Fixing min/max temperature
Comfort temperature
More features	display backlight clock alarm clock calendar	display backlight clock alarm clock calendar
General
Form factor	square	horizontal
Installation	tabletop	tabletop
Display	colour	colour
Material	plastic	plastic
Power source	3xAA from the mains	1xCR2032 from the mains
Transmitter power source	2xAA	2xAAA
Dimensions	150x150x60 mm	150x42x123 mm
Transmitter dimensions	130x40x20 mm	40x20x130 mm
Weight	300 g
Added to E-Catalog	march 2016	january 2016

Number of sensors

— Number of sensors. The total number of sensors that can be linked to the weather station and send measurements to it. The presence of several sensors allows you to determine the weather conditions in different areas: these can be different rooms of the same building or different parts of the world. The location of the sensors relative to the structure can significantly change the accounts, therefore, to achieve more reliable results, 2 or more remote sensors are usually provided.

Form factor

External representation of the weather station allows you to better fit the model into the interior of the room according to your preferences and taste. Among the models are square and horizontal of two types — horizontal and vertical.

Transmitter power source

This concerns how the transmitter in the external sensor of a weather station is powered, specifically for wireless sensor models. Wired sensors, as mentioned earlier, don't have transmitters; they derive the required energy for operation through a wired connection.

The majority of models use sensors powered by standard-sized, replaceable batteries — either disposable or rechargeable cells. This choice is driven by considerations of battery life and the convenience of swiftly swapping out depleted batteries without removing the entire sensor. While this method incurs additional costs for separate battery purchases — either ongoing expenses for disposables or a relatively higher upfront cost for rechargeables—these drawbacks are generally deemed non-critical. Overall, the advantages of this approach outweigh these concerns for several reasons.

Dimensions

Dimensions of the main unit of the weather station. This option allows you to estimate the space required to install the device. However, most modern models are very compact, it makes sense to pay close attention to the dimensions only when you have to install the device in a very cramped place.

Transmitter dimensions

Dimensions of the wireless unit (see "Type of external sensor") that the weather station is equipped with. Such units are usually small, and finding space for their installation is not a problem; however, in some situations (for example, when placed in a miniature wall niche), accurate dimensions may not be superfluous.

Weight

The total weight of the device. In models equipped with external sensors, this parameter is usually indicated only for the main unit, because the weight of the external equipment is small and can be neglected.