If you like QRP and traveling light, then the MFJ-813 QRP Wattmeter may be for. you. So far it has been a great meter, and it won't put you in hock. It is easy to use. Since it doe not have a light it helps conserve your batteries.
A mod suggestion: Add a small Li coin cell, small LED, and a momentary-on with off delay. Or maybe just a cheap flashlight.
It is a great little meter. I have a ZachTek desktop WSPR transmitter with the MFJ-813 utilized to tune an MFJ-16010 to a random end feed wire antenna. All three units work great!
Have used the MFJ 813 QRP SWR/Wattmeter for several years. Works fine. The sensitivity control is very, very handy for using with different transmitters at different QRP or Low Watts. I calculate the power then set the sense and mark the dial. With the HeathKit HW-8 at 1 Watt, I adjust sensitivity to aprox. 2 o'clock. . With the Kenwood 830 at 33 W power out, I adjust sensitivity to aprox. 10:30 o'clock. I jumped the meter with a pair of 1N914 ( opposing directions as 'anti-diode') to save the meter. My measurements show that it will handle 50 W max, for a moment, which is way more than QRP. Have been CW-only since 1958. QRP is OK, Like Navigating by the Stars !
