Ordinary calibration device for a quick testing of strain gauge amplifiers.
Setting: ± 0.5, ± 1, ± 2, ± 5, ± 10, ± 20 mV / V
Polarity switch
Full, half and quarter bridges
120 and 350 ohms, selectable via rotary switch
DC supply check 4.5 V - 19.99 V