The RX8-DL is compatible with a wide range of dual-element transducers, each with different diameters and frequencies depending on the material and application. Transducers with an HD (high-damping) designation are commonly used in Echo-Echo (E-E) through-paint mode, while CPZT (composite) types provide improved penetration for materials that are difficult to transmit sound through. Most standard transducers are designed for Pulse-Echo (P-E) mode. By selecting the transducer type from a predefined list, the RX8-DL automatically recalls the specific parameters of that transducer.

For Engine Blocks (Cylinders & Decks)

A single probe is generally suitable for both cast aluminium and cast iron engine blocks. The 2" radius enables accurate measurements inside concave cylinder surfaces while still being gentle enough for use on flat deck surfaces. This probe covers over 90% of applications on cast aluminium or cast iron blocks.

• T-104-2120: 0.500" / 5 MHz with 2" radius (standard probe supplied with PR-8V)
• T-104-4120: 0.500" / 10 MHz with 2" radius (recommended for very old cast aluminium blocks if the standard probe is not suitable)

For Cylinder Heads (Ports)

Probe selection depends on material type (cast iron or cast aluminium). These probes feature a 0.55" radius and are available with a 1" or 9" wand, depending on user preference.

• Cast Iron:
  • T-162-2110: 0.250" / 5 MHz, 0.55" radius, 1" wand
  • T-132-2110: 0.250" / 5 MHz, 0.55" radius, 9" wand
• Cast Aluminium:
  • T-162-4110: 0.250" / 10 MHz, 0.55" radius, 1" wand
  • T-132-4110: 0.250" / 10 MHz, 0.55" radius, 9" wand

For Chassis Tubing

Commonly used by chassis builders and sanctioning bodies (e.g. NHRA, ARCA). A single probe is usually sufficient for most applications unless through-paint capability is required.

• T-101-4000: 3/16" / 10 MHz, flat bottom (no radius)
• T-102-2700: 0.250" / 5 MHz high-damping probe, suitable for MMX Mode and through-paint measurements