Unihedron
SQM-LU Users manual
2 Specifications
USB connection USB B connector (5m USB A to USB B cable supplied)
USB FTDI VCP driver, serial port emulator at 115200baud.
Physical Size 3.6” x 2.6” x 1.1"
Meter precision Each SQM-L is factory-calibrated. The absolute precision of
each meter is believed to be ±10% (±0.10 mag/arcsec²).
The difference in zeropoint between each calibrated SQM-L is
typically ±10% (±0.10 mag/sq arcsec)
Power requirement 18mA (from the 5V USB connection)
Operating temperature range -40°C to 85°C
Temperature Accuracy ± 2°C maximum at 25°C
Temperature update rate 4.3 seconds, 256 samples taken at 60Hz then averaged.
Revision 1.1
Page 4
Last modified: Jun 18, 2011
Illustration 2: Front and back of unit
