RS-SE-401 is a complete IEEE 802.11 bgn Wi-Fi module for advanced water and gas meter applications. It is a fully self-contained module with an ultra low power microcontroller, power management unit and built-in diversity antennas along with an option to connect external antennas. It supports high RF power output, very good receiver sensitivity and antenna diversity enabling long range wireless connectivity. It includes a DLMS standard-compliant meter server stack providing ease of integration into metering devices. When used in Water or Gas meters, this module facilitates advanced metering features like hassle free remote metering, instantaneous consumption reports and remote detection of fault conditions like leaks or reverse flow, illegal usage and tampering. The RS-SE-401 includes WLAN and higher layer functionality with WPA2 security, IPSec, a network stack that terminates TCP/IP and UDP connections with IPv6 and configuration capability through wireless or UART. The module can provide a battery life of over 10 years with a 2000 mAh battery and is available in an easy-to-assemble 31mm x 44mm LGA package. Features: Compliant to 802.11 b/g and single stream draft 802.11n Supports DLMS compliant meter server stack 28 dBm Transmit Power and -98 dBm Sensitivity in the most-robust mode (1Mbps), along with antenna diversity enables longer range and robust connectivity High Multipath tolerance of upto 2 micro-seconds maximum delay spread Ultra low power operation, providing over 10-year battery life with 2000 mAh battery Supports 802.11s mesh networking