I am looking to build a wireless display for a multimeter i do alot of work where it takes two people to do stuff becouse the meter is in a place that i cannot see it and the adjusting is in another place. It would need to transmit to the reciever that at the most will be 500 ft away but would like it to be able to do 1000 ft All the reciever unit would have to be is something like a digital clock display (led display?) I would like to be able to modify my multimeter i have now gb instruments gdt-294a so i could just plug the transmitter into it. Or if all else fails to make it alot simpler just 0-10.00 volts is the range most of our work is done in.