Invada http://www.invadarecords.com/Downloads.php?ID=00000264
11 Pedalboards using it

Invada Test Tones

Plugin screenshot
Generator Oscillator

A sine generator to test connections

Control Default Min Max
Active 0.00 0.00 1.00
Frequency 1000.00 Hz 20.00 Hz 20000.00 Hz
Trim 0.00 dB -24.00 dB 0.00 dB
Out Meter -60.00 dB -60.00 dB 6.00 dB
http://invadarecords.com/plugins/lv2/testtone v.0:2.1-4