Comparison Hama EWS-800 vs Ea2 AL 808

— 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.

The maximum distance to the main unit of the weather station where an external sensor can be placed. For wired versions (see "Type of external sensor") this indicator corresponds to the length of the standard cable; for wireless, a guaranteed radio communication range is usually indicated within the visibility limit, provided there is no interference or foreign objects in the signal path. Anyway, it should be taken into account that the maximum installation range is usually less than the claimed range in fact. This is due to the fact that the wire can rarely be laid in a straight line, and the radio signal, in turn, is affected by obstacles and electromagnetic interference. Therefore, it is worth choosing a weather station for this parameter with a certain margin.

The temperature range at which the weather station's internal temperature sensor (see "Measurements") can operate normally. Of course, for normal use, it is need to the temperatures in the room do not go beyond the specified range — otherwise the device will give a warning about the impossibility of measurements in the best case, and at worst it will fail altogether. However, it should be noted here that temperature fluctuations inside residential and office buildings are relatively small, and even in the most inexpensive weather stations, the operating range of the corresponding sensors covers these fluctuations with an impressive margin. Therefore, it makes sense to pay close attention to the measurement temperature in the room only when the device is purchased for non-standard applications — for example, for installation in a greenhouse or in a warehouse with low temperatures.

The temperature range for which the external temperature sensor of the weather station is designed (see "Measurements"). This parameter must correspond to the temperature differences that this sensor may be exposed to during operation — otherwise, malfunctions and even hardware failures are possible. Of course, it is worth choosing a model according to external temperature, taking into account the climate in which it is planned to be used; at the same time, it is worth taking a certain margin both in the lower and in the upper side. The last is connected not only with the possibility of climatic fluctuations, but also with the fact that outdoor equipment can be heated from direct or reflected sunlight; this, of course, must be avoided in every possible way, but it is not always possible to find an perfect fitting location for the sensor.

The main material used in the design of the weather station body (in models with a remote sensor, it usually uses the same material as the main unit).

— Plastic. This cost-effective material is not only easy to process but also chemically inert, resisting corrosion, and has low thermal conductivity — a crucial feature for external sensors, minimizing the risk of hypothermia or overheating. While many plastic grades in modern electronics are weaker than the metal described below, this strength is generally sufficient for the typical operating conditions of weather stations. Consequently, this option is widely adopted, spanning all classes of weather stations, from budget-friendly to professional-grade.

— Metal. Metal stands out for its superior strength, surpassing other materials and lending a stylish and robust appearance to the device. However, its higher cost makes it more common in high-end professional weather stations, prioritizing maximum strength and reliability. While metal may be used in analog models for aesthetic reasons, practical advantages are often secondary in such cases.

— Glass. Glass, alongside wood, is a "designer" material employed in analog models. However, its impracticality arises from sensitivity to shocks and its relatively high cost. Consequently, this option is reserved for devices where original design is param...ount, and even then, it is rarely chosen.