[Interface type]： RS485

[Communication distance]： 8km

[Size]：90*53*42mm

[Introduction]：The E91-DTU (400SL30) is a new generation of LoRa waterproof wireless data radio. 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 410.125MHz–493.125MHz. It supports interoperability with the E22 series modules. Equipped with a 5-pin M12 waterproof connector, it features a waterproof plastic housing, silicone ring seal, and internal potting for waterproofing, achieving an IP67 waterproof rating. It supports a wide voltage input of 8–28V (DC). The product is coated with a conformal coating, providing protection against mold, moisture, and salt spray.