I had all three, supplied by my former employer. They were great to use, as I was working on very large, precise testing equipment.
One time, I brought it with me to do some field work in Switzerland. On my return to Minneapolis, I was making my way through the customs area, grabbed my suitcase, and Pelican hard-sided tool case containing the Torque Wrench. As I approached the customs officer, I noticed my tool case was vibrating! Thoughts began to race through my head about I would explain why my luggage was vibrating... To make things worse, the Pelican case just screams "search me!" to a customs officer. As luck would have it, he glanced at my papers, and let me stroll on by. Once home, I discovered the LCD display was half blacked out, rendering the tool unusable. No big deal, got a new one.
A co-worker of mine had boarded his plane in Tokyo, when 2 armed military types boarded the plane, escorted by a flight attendant. They walked right up to his row, and requested that he join them. Outside, on the tarmac, he was brought to a white van, and when he stepped inside, saw his suitcase sitting on a table in the middle of the van. The asked him to open it, and explain the suspicious device it contained. He gladly complied, and pulled out his Tech Torque Wrench. He turned it on, showed them how it worked, they all smiled, and politely escorted him back to his seat on the plane.
Moral of the story: not the thing for flying with!