General Catalogue Chemistry - BECO Internacional LTDA.

311 52
Vernier callipers
For measuring inside and outside diameters and depths, plastic.
Measuring range: 120 mm/5 inches
Graduation: mm with vernier reading to 1/10 mm
1/16 inch with vernier reading to 1/128 inch
313 05
311 27
Stop-clock
Adding stop-clock with start, stop and reset
button. Spring work.
Range, 360° turn: 60 mins.
Inaccuracy of reading: 1 s
Max. running time: 20 h
Graduations: 60 and 100 divs.
Diameter: 21 cm
Stop-clocks
311 52 311 54 311 83
Timing and timekeeping
Adding stop-clocks with start, stop and reset buttons. With unbreakable
watch glass, shock-proof, and unbreakable spring. Including cord and
protective pouch.
313 07
313 17
313 05
Range, Inaccuracy
Cat. No. 360°turn of reading Graduations Diameter
15 mins 0.1 s 30 s/15 min 5.5 cm
30 mins 0.2 s 60 s/30 min 5.5 cm
311 27
measuring equipment – length/time
Model of vernier
To demonstrate vernier reading on numerous length and angle measuring
instruments. With retrograde and direct vernier graduation.
Main scale: 1 m, graduated in units of 5 cm
Vernier length: 45 cm resp. 55 cm
311 83
Precision micrometer
With constant-torque thimble and locking device, high-quality steel.
Range: 0 to 25 mm
Reading: 1/100 mm
311 54
Precision vernier callipers
With instant-action locking device for internal, external and depth measurements,
stainless steel (all hardened).
Measuring range: 150 mm and 6 inches
Graduation: mm with vernier reading to 1/20 mm
1/16 inch with vernier reading to 1/128 inch
313 07
313 12
Digital stop-watch
313 17
313 12
Quartz-controlled stop-watch with LCD display
with start, stop, split and reset. Including cord
and protective pouch, without battery.
Range: 9 h 59 min 59 s 99/100 s
Resolution: 0.01 s
Display: 7-segment LCD, 7 digits
Heigth of digits (h, min, s): 8 mm
Battery: 1.5 V, type IEC R 6 (> 685 44 )
Dimensions: 8.5 x 6 x 2.5 cm
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