The Broadcom Specialized Sensors AFBR-S10RX031Z is an analog sensor designed to detect vertical very low frequency (VLF) signals. It is a highly sensitive device that can detect signals in the range of 0.1 Hz to 10 Hz. The sensor is designed to be used in a variety of applications, including medical, industrial, and automotive. It features a low power consumption of only 0.5 mW and a wide operating temperature range of -40°C to +85°C. The AFBR-S10RX031Z is also highly reliable, with a MTBF of over 1 million hours. It is also RoHS compliant and comes with a two-year warranty. The AFBR-S10RX031Z is an ideal choice for applications requiring reliable and accurate detection of VLF signals.