WA - series WindowsAnnunciator WA16: to the data sheet fault indicating system for 16 messages, resolution ≥1ms, history with ring buffer, over 320 events, acknowledgeable new alert - flash warning with 2 flashing frequencies (ISA-18.1/DIN 19235), with signal storage in case of power failure, multifunctional parameterizable via USB and NFC. Option: TCP/IP IEC 61850 and IEC 60870-5-104 protocol WindowsAnnunciator WA40 (M) + WA40-S: to the data sheet fault indicating system for 40-200 messages, acknowledgeable new alert - flash warning with 2 flashing frequencies (ISA-18.1/DIN 19235), with signal storage in case of power failure, multifunctional parameterizable via USB and NFC. Option: TCP/IP IEC 61850 or IEC 60870-5-104 protocol WindowsAnnunciator WA40 (M) + WA40-S Redundant: to the data sheet fault indicating system for 40-200 messages, with redundant power supply, acknowledgeable new alert- flash warning with 2 flashing frequencies (ISA-18.1/DIN 19235), with signal storage in case of power failure, multifunctional parameterizable via USB and NFC. Option: TCP/IP IEC 61850 or IEC 60870-5-104 protocol https://www.unitro.de/wp-content/uploads/2017/05/Unitro_WA40_HOME.mp4