20 Most Recent Bosch 1973 - 1975 Mercedes-Benz 450SL Fuel Injection Pressure Regulator Bos Questions & Answers

Send it in for professional repair and recalibration. There are no user serviceable parts. https://www.google.com/search?q=bosch+glm+250+vf+repair ..

Yes, you have to measure up from the line it gives you. It gives you a precise level so mark it and then measure up (or down) from it.
Or place the tripod on a table or something to get to higher position.

Same exact features, buttons and functions as this manual by Irwin.

http://www.irwin.com/uploads/documents/36_laser_tape_25.pdf

I want to use an old sensor forgiven during 30 years. I have no more manual, off course. Thanks for your answer

Most moisture meters measure the moisture content of wood or concrete is measured in percentages. So if the reading says 15 that means that there is a content of 15% moisture in the concrete.

Pressing the - (minus) button on the back toggles temperature units. Pressing + (plus) toggles barometric pressure units.

It's possible that one of the newer sensors could work in place of your 1457 sensor, but it depends on the specifications of the newer sensors and the compatibility with your base unit. The I MAX1457 sensor, which is a highly integrated analog-sensor signal processor optimized for piezoresistive sensor calibration and compensation. However, I have no information about its compatibility. If you're looking for a replacement sensor, I suggest contacting the manufacturer of your base unit to inquire about compatible sensors. Alternatively, you can check the user manual of your base unit to see if it lists compatible sensors. Garage door opener sensors are not universal. Safety sensors can only communicate with garage door openers from the same brand.