| Model | Frequency Range | Dynamic Range1 | Overload Rating | Maximum SWR | |
| Impedance Connector  | 
Pulse/Continuous | Frequency | SWR @ 0 dBm | ||
| Wide dynamic range dual diode sensors | |||||
| 51075A 50 ohm N (M)  | 
500 kHz to 18 GHz | -70 to +20 dBm1 | 1 W for 1µs 300 mW  | 
500 kHz – 2 GHz 2 GHz – 6 GHz 6 GHz – 18 GHz  | 
1.15 1.20 1.40  | 
| 51077A 50 ohm N (M)  | 
500 kHz to 18 GHz | -60 to +30 dBm1 | 10 W for 1µs 3 W  | 
500 kHz – 2 GHz 2 GHz – 6 GHz 6 GHz – 18 GHz  | 
1.15 1.20 1.40  | 
| 51079A 50 ohm N (M)  | 
500 kHz to 18 GHz | -50 to +40 dBm1 | 100 W for 1µs 25 W  | 
500 kHz – 2 GHz 2 GHz – 6 GHz 6 GHz – 18 GHz  | 
1.15 1.20 1.40  | 
| 51071A 50 ohm K (M)  | 
10 MHz to 26.5 GHz | -70 to +20 dBm1 | 1 W for 1µs 300 mW  | 
10 MHz – 2 GHz 2 GHz – 4 GHz 4 GHz – 18 GHz 18 GHz – 26.5 GHz  | 
1.15 1.20 1.45 1.50  | 
| 51072A 50 ohm K (M)  | 
30 MHz to 40 GHz | -70 to +20 dBm1 | 1 W for 1µs 300 mW  | 
30 MHz – 4 GHz 4 GHz – 38 GHz 38 GHz – 40 GHz  | 
1.25 1.65 2.00  | 
| Special purpose dual diode sensors | |||||
| 51011A-EMC 50 ohm N (M)  | 
10 kHz to 8 GHz | -60 to +20 dBm2 | 1 W for 1µs 200 mW  | 
10 MHz – 2 GHz 2 GHz – 4 GHz 4 GHz – 8 GHz  | 
1.12 1.20 1.40  | 
| 51011A 50 ohm N (M)  | 
100 kHz to 12.4 GHz | -60 to +20 dBm2 | 1 W for 1µs 300 mW  | 
100 kHz – 2 GHz 2 GHz – 4 GHz 4 GHz – 11 GHz 11 GHz – 12.4 GHz  | 
1.12 1.20 1.40 1.60  | 
| Diode Average Sensor (For use with 4530, 5230, 4230, 4240, 4540) | |||||
| 51085 50 ohm N (M)  | 
500 kHz to 18 GHz | -30 to +20 dBm1 | 15 W for 5 µs
 2 W  | 
500 kHz – 4 GHz 4 – 12.4 GHz 12.4 – 18 GHz  | 
1.15 1.20 1.25  | 
| 51086 50 ohm K (M)  | 
50 MHz to 26.5 GHz | -30 to +20 dBm1 | 15 W for 5 µs
 2 W  | 
500 kHz – 18 GHz
 18 – 26.5 GHz 
  | 
1.3
 1.35  | 
1 Models: All power meters except 4500B model
2 Models 4240, 4530, 4540


