This large cross needle meter has a pale blue meter lamps, making it stand out in any ham shack. It has a large metal case and is ruggedly built. Removable rubber side bumpers are useful to prevent damage in the field. It's frequency range of 1.8 to 200 MHz is the widest in this group, with forward power scales of 30, 300 and 3000 watts, selected by the front panel range switch. This active watt meter must be connected to a DC supply for PEP measurements but will read average power and SWR with the power disconnected. It does not measure reflected power or display SWR in the PEP mode. The large 3.75 × 3.25 inch meter face is easy to read and provides good resolution with scale divisions between 0.5 watt up to 20 watts (multiply by 10 or 100 for higher power ranges). A rear panel receptacle accepts 13.8 VDC (power cord is included), and a meter lamp switch is located on the rear panel. Specifications: Cross Needle Design Frequency: 1.8-200 MHz Power Range Forward: 30/300/3kW Accuracy: +/- 10% (@ Full scale) SWR Detection Sensitivity: 5W (Min) Input / Output Impedence: 50-Ohm Input / Output Connectors: SO-239 Dimensions & Weight: 6.25" x 4.3” x 4.8” LED Lighted / On-Off Switch