SGI-100BT: Universal Speedometer and Tachometer Interface Speedometer/ Tachometer Interface w/ Bluetooth
OBD II Speedometer/ Tachometer Interface STA-1000
Universal Tachometer Signal Interface SGI-8E
DSL-1E: Universal Diesel Alternator Tachometer Interface DSL-1E
Universal Flywheel Tachometer Interface DSL-2E
CDI Ignition Tach Adaptor. SGI-17
