Para Dynamics PDC1 Compact 100 Watt SWR/PWR Meter. 

• Easy to Use
• 2 Scales Of Power 0-10W and 0-100W
• Very Compact in size
• Take it with you

Keep your radio gear in top shape.  Bad SWR (standing wave ratio) can
not only decrease your radio performance, it can damage your equipment.

You will need a short jumper cable to use between your radio and the SWR Meter.

You can purchase a jumper cable here:  PP8X1.5 - 1.5 ft. cable 

Here is an excellent link on how to use your SWR Meter correctly at FireStik.com