dreadbox white line modulator price : $119.00

features:
nyx's modulator
can be used as an lfo or envelope
control voltage over fall time
rates: when on high 1 sec up to at least 100hz
when on low 10 sec up to 20hz
separate gate and trigger input
current draw: 15ma (at +12v) / 15ma (at -12v)
8hp

download the users manual here.