Новое поступление
Магазина BETTERSHENGSUN SHENGSUN Store работает с 14.07.2015. его рейтинг составлет 86.31 баллов из 100. В избранное добавили 3518 покупателя. Средний рейтинг торваров продавца 4.4 в продаже представленно 14021 наименований товаров, успешно доставлено 13777 заказов. 1680 покупателей оставили отзывы о продавце.
Характеристики
*Текущая стоимость US $487.50 уже могла изменится. Что бы узнать актуальную цену и проверить наличие товара, нажмите "Добавить в корзину"
| Месяц | Минимальная цена | Макс. стоимость | Цена |
|---|---|---|---|
| Mar-01-2026 | 618.31 руб. | 630.0 руб. | 624 руб. |
| Jan-29-2026 | 502.48 руб. | 512.59 руб. | 507 руб. |
| Dec-29-2025 | 609.62 руб. | 621.71 руб. | 615 руб. |
| Nov-29-2025 | 604.91 руб. | 616.82 руб. | 610 руб. |
| Oct-29-2025 | 482.35 руб. | 492.7 руб. | 487 руб. |
| Sep-29-2025 | 594.84 руб. | 606.70 руб. | 600 руб. |
| Aug-29-2025 | 589.16 руб. | 601.53 руб. | 595 руб. |
| Jul-29-2025 | 584.2 руб. | 596.56 руб. | 590 руб. |
Описание товара


Product introduction: SZ3990B is a 5 parameter protective carbon dioxide sensor based on ZIGBEE wireless communication technology. The 5 parameters include temperature, humidity, light intensity, carbon dioxide and soil moisture. The product adopts the standard MODBUS-RTU protocol, which can support the PLC or man-machine interface communication of this protocol. Zigbee is a low power IEEE802.15.4 protocol based on personal area network protocol. The technology under this protocol is a short-range, low power wireless communication technology. This name comes from the bee's eight character dance, because bee is the "dance" that flies and "Zig" winged (buzzing) to transmit the information of the pollen location with the companion, that is to say, the bee forms the communication network in the group by such a way. Its characteristics are short distance, low complexity, self-organization, low power consumption, low data rate and low cost. It is mainly suitable for the field of automatic control and remote control, and can be embedded in various devices. In short, ZigBee is a cheap, low-power close range wireless networking communication technology. ZigBee is a wireless network protocol with low speed and short distance transmission. The ZigBee protocol is physical layer (PHY), media access control layer (MAC), transport layer (TL), network layer (NWK), application layer (APL) from bottom to top. The physical layer and media access control layer comply with the requirements of IEEE 802.15.4 standard. The main features of ZigBee network are low power, low cost, low speed, support for a large number of nodes, support for a variety of network topology, low complexity, fast, reliable, and secure. The devices in ZigBee network can be divided into three roles: Coordinator (Coordinator), sink node (Router) and sensor node (EndDevice).
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