GE AutoSigma 3000 DL Technical Reference, Operating Manual page 56

Specifi cations
Data Logger Memory
Serial Port
Shoulder Bag
Packall Case
Power Source
Auto Switch Off
Case
Weight
Environmental Range
7 - 4
Up to 500 readings, up to 50 fi les (DL model)
RS-232 serial LEAD available for serial printer or PC etc.
Compatible with KB DMEDL software
To protect unit for mobile applications
Small light rigid case. 9" × 12.25" × 4.25" (229 × 311 × 108 mm, H × W × D). To hold
unit, probe, probe cable, and operating manual, with further space for extra accesso-
ries
3 × 1.5 V AA size alkaline batteries, approx. 100 hrs life without backlight
If the instrument is not used for "n" minutes, or if the battery falls to an unusable low
level, the instrument switches off automatically ("n" is user selectable).
High impact polycarbonate, splash proof
6.5" × 3.0" × 1.6" (165 × 76 × 41 mm, H × W × D)
14.5 oz (0.4 kg) including batteries
0 to 95 % relative humidity, 0 °C to +50 °C for reliable operation
Issue 04, 06/2007 AutoSigma 3000