Economical 3/64 DIN panel meter that has a full size 0.56" green or red LED display, with a built-in analog output and display hold capability. 3 1 /2 Digit Display. - https://www.omega.com/
Temperature Meters - DP116 - Omega
Thermocouple and RTD Input
Full-Size 0.56" (14.2 mm) LED Display
Analog Output Standard
1 /8 DIN Panel Adaptor Standard
In Response to Email from JPE - US WV to delabs
"I would like to know if you offer a monitoring solution that will constantly measure ambient (air) temperature (say, 0 to 150°F), and provide a corresponding DC voltage output of either 100 mV, 1 V, 5 V, or 10 V. Do you make a unit that can be configured to do this?"
"Casio has been manufacturing and marketing industrial ruggedized mobile terminals for more than twenty years across the globe, and has successfully established themselves as one of the market leaders."
Casio Industrial Handhelds
"The IT-600 is designed and built for maximum durability in all weather conditions and for harsh handling by users. To ensure that the terminal is durable against dust, water and hard impacts, the IT-600 has been subjected to a series of severe assessment tests complying with International Standard IEC60529." - IT-600 series
3.7-inch transflective TFT color LCD (65,536 colors)
21 keys (including Numeric keys, Center key, Cursor keys)
Scanner C-MOS bi-linear imager
Bluetooth Version 1.2 compatible (up to 3.0 m distance)
Theory must be studied once and referred to, again and again as you do practicals. One is by building DIY projects and then modifying them. Also Repair of equipment, troubleshooting, testing and calibrating. Then you know how components behave and real life limitations. Now design and engineer a product and test it at customer site. do a pilot production and test with more clients. Now you will learn to think based on practical applications.
This invention lead to modern electronics, computers and internet look at this page, Transistor Photo.
A picture of the first transistor ever assembled, invented in Bell Labs in 1947. It was called a point contact transistor because amplification or transistor action occurred when two pointed metal contacts were pressed onto the surface of the semiconductor material.