Wireless rainfall alarm system
The utility model relates to a wireless rainfall alarm system, its technical characterstic is: including indoor rainfall alarm device and outdoor rainfall detection device, indoor rainfall alarm device and outdoor rainfall detection device pass through 433MHz frequency channel signal connection toge...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model relates to a wireless rainfall alarm system, its technical characterstic is: including indoor rainfall alarm device and outdoor rainfall detection device, indoor rainfall alarm device and outdoor rainfall detection device pass through 433MHz frequency channel signal connection together, outdoor rainfall detection device and rain sensor link together. The utility model discloses an adopt the wireless radiofrequency signal of ISM frequency channel to carry out rainfall monitoring data transmission between outdoor rainfall detection device and the indoor rainfall alarm device, indoor rainfall alarm device mounted position can be selected in a flexible way, the device is simple in installation, the characteristics that installation cost is low, can realize 24 hours automatic observations, the occurrence automatic alarm function, thereby work efficiency has been improved at to a great extent, the error in the artifical observation has also been reduced, it makies emergent the preparation in advan |
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