MRT mPTX: This is a MRT Personal Transponder. This is powered from the receiver, no extra battery power source needed. Choose from hard case tabbed version, or lightweight heat-shrink protected version. Perfect with all AMBrc systems and RC4 up to v4.4 software. (will not work with the v4.5 Drone System update). MRT Pro Transponder, mPTX-ID is 100% Waterproof (Hard case version), common 2-wire design, are lightweight and small in size. This makes them easy to fit into the smallest, tightest areas. The black wire is soft and pliable making them easier to install.

Size: 19 x 16 x 6mm
Weight 4 grams

The PTX ID number of each transponder can be changed to an alternative ID number. Each individually numbered transponder has its 'custom' ID number written on the supplied instruction sheet with the an alternative number also available.

PTX transponders are supplied with 2 stored ID numbers and come factory set on the custom ID. It is possible to switch from the custom number to the other number if required. To use the PTX it should be connected to a power socket on a receiver or to a battery pack. The LED will light up to show the transponder is operating. When setting the number (or checking the number that is set) the LED will flash to show the number selected, or the number that has been set.

Operating Voltage: 2.1V - 16V DC
Lead Length: about 190mm
Mounting: Standard 3 Hole (same as AMB/MyLaps)
Compatibility: AMBrc2, AMBrc3 and RC4 systems through v4.4, not compatible with V4.5.

 Specifications:

ID Numbers: Main 7 Digit ID / Alternative 7 Digit ID (ALT)
System Compatibility: Compatible with AMBrc2, AMBrc3, Mylaps RC3 and Mylaps RC4 systems. Not responsible for compatibility, check with your local track if not sure.
Stealth Case: 19x16x6mm, waterproof and fuel proof
Mounting options: 3-hole tabs or direct fit (tabs removed)
Weight: 3g approx.
Temperature range: 32-122 Fahrenheit
Signal Transfer: Magnetic induction HD (Hybrid Detection)
Power Feed: From free RX channel
Power lead length: 190mm or approx 7.5 inches
Connection plug: Standard servo plug
Operating Voltage: 2.1v-16v DC (rev. polarity protected)
Power consumption: approx 8mA @ 6v DC

MyLaps Hybrid RC4 (2-wire): The Hybrid RC4 (2-wire) transponder is a bridge between tracks who run the latest RC4 and RC5 decoder boxes, along with tracks that still run the older RC2 and RC3 decoder boxes.  This transponder is backwards compatible on the old decoders and features telemetry data such as voltage to the transponder and transponder temperature each time the loop is crossed, however it does not support the latest car ID numbers that can be used on RC4 and RC5 decoder boxes.

• Fully hybrid:
• 100% compatible with RC2/RC3 Timing Systems (previously AMBrc)
• 100% compatible with RC4, and ready for the future

MyLaps RC4 Pro Transponder (Short 3-wire): The RC4 Pro (3-wire) transponder is the latest in the line of transponders from MyLaps. The standard RC4 transponder supports car ID numbers so you can have the same transponder number in all your cars, with a different ID for each. The standard RC4 transponder also gives additional telemetry data such as voltage to the transponder and transponder temperature each time the loop is crossed. The RC4 "Pro" edition transponder features all the same features as the standard RC4 transponder, except it is 25% smaller, lighter, all black with black wires, and shortened lead wires.  This transponder will only work on RC4 decoder boxes with version 4 firmware or higher.