[Interface type]：RS485

[Communication distance]：8km

[Size]：90*53*42mm

[Introduction]：The E91-DTU (900SL30) is a new generation LoRa waterproof wireless data transceiver. Developed based on a high-performance SEMTECH RF chip, it boasts a maximum transmit power of 30dBm, multiple transmission modes, and an operating frequency band of 850.125–930.125MHz. It supports interoperability with the E22 series modules. Equipped with a 5-pin M12 waterproof connector, it features a plastic waterproof housing, silicone ring sealing, and internal potting for waterproofing, achieving an IP67 waterproof rating. It supports a wide voltage input of 8–28V (DC). LoRa spread spectrum technology provides longer communication distances and strong anti-interference capabilities. The product is coated with a conformal coating, offering protection against mold, moisture, and salt spray.