Spectra Precision DE-50 - Diagonal Eyepiece Adapter for DET-2 Theodolite deals Q1: What does "direct reading"

Q1: What does "direct reading" mean for this rod

BTUs: 153585

Inside Drawer Dimensions: 50" W x 38" D x 2-1/8" H

the gripping jaws are designed to adapt and provide a strong hold on stakes that are slightly bent

19" EIA compliant

Spectra Precision DE-50 - Diagonal Eyepiece Adapter for DET-2 Theodolite deals Q1: What does "direct reading"TPI THA Series 3 Lamp 10. 95KW Mul T Mount Electric Infrared Heater with 8mm Quartz Lamps and Amber Gray Sleeves 30 Symmetrical, 480 Volts Extruded Aluminum Model Number: 463 30 THA 480V Features: ETL C US listed for suspended, totally exposed outdoor and indoor spot comfort heating applications, including exterior snow ice control applications All 3 lamp heaters wire for either single or three phase wiring. Includes surface mounting brackets Short