https://en.wikipedia.org/wiki/Electrical_resistance_survey
starsplitter Sr. Member Jan 20, 2007 434 31 May 18, 2019 #1 https://en.wikipedia.org/wiki/Electrical_resistance_survey Amazon Forum Fav 👍 Upgraded Night Vision Monocular Digital Infrared Monocular Telescope for 100% Darkness with 8X Zoom - Grab it through Amazon!
https://en.wikipedia.org/wiki/Electrical_resistance_survey Amazon Forum Fav 👍 Upgraded Night Vision Monocular Digital Infrared Monocular Telescope for 100% Darkness with 8X Zoom - Grab it through Amazon!