All 4 to 20 mA Loop Functions
Source 0.00 to 24.00 mA or -25.0 to 125.0% read mA or percent to 52.00 mA, simulate 2-wire transmitters, measure -99.99 to 99.99 volts DC power & read 2-wire transmitters.

• Quik-Check Switch
  Select 4 or 20 mA output or 2-wire simulation. Accurate to ±0.006 mA.
• Full Range 10 Microamp Resolution
  Adjust 4 digit display to ±0.05% without range change.
• Long Battery Life
  3x9 volt alkaline batteries source 20 mA for over 20 hours, 12 mA for over 33 hours; 2-wire simulate and read for 150 hours. Much longer than NiCd batteries or calibrators with a single 9 V battery!
• Drive Capability
  1200 Ohms with current limited, fuseless protection to 135 V AC/DC.