With a reputation for innovative engineering capabilities and the highest quality standards, OTTO has been providing world class controls for nearly 60 years. Their experience in the design of switches and controls has helped them to become a supplier and help perform in some of the worlds most demanding applications like construction, agriculture, aerospace and material handling. With a wide selection of controls and switches, Marsh Electronics is your supplier for these top of the line components. OTTO has a complete MIL-I-45208, as well as an ISO 17025, onsite test facility with environmental, mechanical, electrical and audio test capabilities. Having an emphasis on sealed-switch technology and custom electromechanical switch design and development, OTTO no doubt has the experience to find a solution for your applications.


G3 Small &Medium Universal Grips:

  • Standard design eliminates the need for tooling charges
  • Compatable with the OTTO JH and JHM series Hall Effect joysticks
  • Accommodate a full line of pushbutton, rocker, toggle, HP Hall Effect & HPL proportional output series of switches
  • Various mounting & termination options available
  • Includes mounting adapter with boot ring

Heavy Equipment Commercial Grips:

  • Ergonimic design reduces muscle strain and fatigue
  • Customizable switch configurations on the front, side and back of grip
  • Left-handed, right-handed or universal orientation
  • Accommodates virtually any OTTO switch
  • Compatible with OTTO JH and JHM series Hall Effect joysticks

Operator Control Modules (OCM):

  • Multi-use device with joystick and keypad functionality
  • Can include virtually any OTTO switch
  • Use of CAN communication protocol
  • OTTO can provide 3D prototypes of the design prior to tooling
  • Robust to handle the rigots of construction, mining, agriculture and forestry equipment

Hall Effect Switches

HFNR Rockers:

  • Hall Effect forward/neutral/reverse rocker
  • 3 million cycle life, full forward to full backward
  • Choice of bezel and button colors
  • LED backlighting options
  • Electronics sealed to IP68S
  • Outstanding EMI/RFI immunity
  • Snap-in panel mounting - accepts multiple panel thicknesses

HTL/HTLT Finger Joysticks:

  • Performs like a full size, dual axis joystick
  • Designed for grip, armrest & panel mounting
  • Available in 2-way, 4-way and 360 styles
  • Wire or pinned terminations
  • Redundant outputs available
  • 1million cycles (HTL) 3 million cycles (HTLT)
  • Electronics watertight to IP68S

Electromechanical Switches

Electromechanical Pushbuttons:

  • Seal options include MIL-PRF-8805 Design 2 and Design 3, IP64, IP68S and IP69K
  • Momentary, alternate and latching action available
  • Variety of housing and mounting styles
  • Variety of button types, color and illumination options
  • Military qualified parts available including thousands qualified to MIL-PRF-8805/110