QEED, Measuring Instruments, models:

QA-POWER-M	Instruction Manual
QC-POWER-T-485	User Manual
QC-POWER-T-TA	User Manual
QI-POWER-485	Instruction Manual
QI-POWER-485-300	Quick Manual
QI-POWER-485-300-LV	Instruction Manual
QI-POWER-485-LV	Quick Manual Instruction Manual