The ALERT121A is a basic ALERT or ALERT2TM transmitter that is designed to be a drop-in replacement for existing flood warning stations. Designed to be simple, reliable, and low cost, the ALERT121A Basic uses the AL200 modulator and sensor interface, as well as the industry-standard Maxon SD125E-series radio. The ALERT121A Basic includes standard circular connectors for sensor and power inputs, as well as a cable gland for additional inputs.
The modular design of the ALERT121A Basic transmitter allows for alternate configurations, additional peripherals, and easy replacement of individual components. Any ALERT121A-series transmitter can be converted between ALERT (legacy) and ALERT2TM protocol with a simple firmware change.
Note: ALERT2 is a trademark of the National Hydrologic Warning Council.
The ALERT121A system is ALERT (Legacy) and ALERT2TM compatible.