LFO is a 1U low frequency oscillator that has a Triangle and Square output, and has a range selector that outputs from approximately 30 seconds per cycle to 1kHz.

The LFO module is a low frequency oscillator that has separate Triangle and Square outputs, each of which can be attenuated. There is also a high and low frequency range selector. The low range outputs cycles from 35 seconds long up to about 4Hz; the high range outputs cycles from 5Hz to 1.1kHz. The Rate knob will flash red (positive) and green (negative) to indicate the phase of the cycle. Please note, the brightness of the phase light is related to the attenuation of the Triangle output (ie. if the Triangle attenuation is turned very low, there may not be any color illumination).

https://www.ottermods.com/lfo-1u