SMA-PTO Sound Module Adaptor

SMD-PTO is designed to sync with a SMX or similar sound module and produce sound for dump trucks excavators or tracked machines . SMD-PTO is pre programed chip. The chip allows to produce a PTO  sound or mono tone of constant rev sound independently. This sound is normally when the PTO (power take of) is running ie engine connected to a HYD pump for utility service. 

The chip as a total of 4 wire or 2 pairs of red + and black - . Connect using color code. One end to the SMX with red and back wire the other end to the elec drive motor or hyd pump. If you use brush less motor use red and back wire or the positive and negatie and of the motor.