Specifications:
Flysky AFHDS2A TELEMETRY Module Set (FS-CEV04, FS-CPD01, FS-CPD02, FS-CTM01, FS-CVT01)
Compatible Receiver: iA4B(directly), iA6B(directly), iA10(need conversion cable)

MODEL: FS-CPD01 RPM Telemetry [magnetic] module
Monitor range of speed 60000RPM/mins
Power: 4.0-6.5V DC
Weight: 6.6g
Size: 31*15*8.5mm

MODEL: FS-CPD02 RPM Telemetry [Photo Induction(optical)] module Monitor range of speed 60000RPM/mins
Power: 4.0-6.5V DC
Weight: 6.8g
Size: 31*15*8.5mm

MODEL: FS-CTM01 Temperature acquisition module Monitor range of temperature: -40-250°C
Power: 4.0-6.5V DC
Weight: 6.8g
Size: 31*15*8.5mm

MODEL: FS-CVT01 Voltage acquisition module Monitor range of Voltage: 0-100V DC
Power: 4.0-6.5V DC
Weight: 6g
Size: 31*15*8.5mm

MODEL: FS-CEV04 i-BUS Serial bus receiver Channels: 4
Weight: 8.1g
Power: 4.0-6.5V DC
Size: 30*25.6*13mm
i-BUS PORT: yes