The O2Alert by Altronics is a recording system designed to record air and fuel ratios with a warning output for system activation and deactivation. O2Alert can record up to two wideband oxygen sensors as well as engine RPM, battery voltage. This recording system has a programmable warning output to protect against ''lean-out'' phenomenon of running the engine to lean of fuel. Each 02Alert unit is housed in a durable aluminum extrusion case measuring 4 in. x 3.250 in. x 1.25 in. and features a backlit display.
O2Alert has provisions for up to two built-in wideband oxygen sensor, plus exhaust gas temperature thermocouple, and two external analog channels