Dwyer APM-220 is a dual-line configurable panel meter with a temperature operating range of -40 to 149°F (-40 to 65°C). It has an accuracy of ±0.03% of calibrated span ±1 count and a power requirement of 85 to 265 VAC 50/60 Hz or 12 to 24 VDC. The enclosure rating is NEMA 4X, IP65 front and it has removable screw terminal blocks for electrical connections. The output signal is 4 to 20 mA and it has a dual-line 6-digit display. The input range is 0 to 20 mA, 4 to 20 mA, 0 to 5V, or ±10V, and the input impedance is 50 to 100 Ω. It also has programmable time delays and maximum switch ratings. The programming software is free and USB-based.