The T5-RLS is compatible with the following Fluke meters. T5-600, T5-1000, T6-600, T6-1000, T6-1000 Pro. 

T5-RLS, Replacement Test Leads For Fluke T5-1000 or T5-600 Voltage, Continuity and Current Testers

The replacement test probes are the:

Fluke TP1 Slim Reach Test Probes

Any 4 mm connection is compatible with the T5 or T6.

Examples would include but are not limited to:

Fluke AC285 SureGrip™ Alligator Clips

Fluke TP2 Slim Reach Test Probes

Fluke TP220 SureGrip™ Industrial Test Probes

Fluke AC220 SureGrip™ Alligator Clips

Fluke TL221 SureGrip™ Test Lead Extenders

Fluke AC280 SureGrip™ Hook Clips

Fluke AC283 SureGrip™ Pincer Clips

Fluke TP74 Lantern Tip Test Probes

Fluke TP38 Slim Reach Test Probe Set

Fluke FTP-1 Fused Test Probes