BIRD Thruline RF directional Wattmeter. 450 KHz-2700 MHz, 0.1-10,000 watts. N female connectors. Requires elements. 

• Manufacturer
  Bird Technologies
• Accuracy
  +/- 5% of full scale
• Frequency Range
  0.45-2700 MHz
• Maximum Power
  10000 W
• Item Length
  6.9 in
• Power Range
  100 mW to 10 kW using Bird Plugin Elements
• Item Height
  3.6 in
• Operating Bandwidth
  0.45 to 2700 MHz
• Item Weight
  3 lb
• Display Type
  Analog
• Item Width
  5.1 in
• Meter Type
  Handheld