| CTC Series Signal Converters |  | NK Technologies | 24 VDC Loop Powered, 36 VDC Max. | 4–20 mA | 0.333 VAC Low Voltage ProtectCT™ or 5 A Secondary | DIN Rail | UL Listed - USA & Canada |  | Compare |
| API 4300 G & 4310 G Series DC to DC Transmitters |  | Absolute Process Instruments | 115 VAC, 230 VAC, 85-265 VAC or 60-300 VDC, 9-30 VDC | 0-1 V to ±10 VDC or 0-1 mA to 4-20 mA | 0-10 mV to 0-500 VDC, ±10 mV to ±10 VDC, 0-100 μA to 0-900 mADC | Surface | UL Recognized - USA & Canada | | Compare |
| APD 4300 Series DC to DC Transmitters |  | Absolute Process Instruments | 85-265 VAC or 60-300 VDC 9-30 VDC or 10-32 VAC | 0-1 V to ±10 VDC or 0-1 mA to 4-20 mA | 0-100 mV to 0-300 VDC, Bipolar Voltages, 0-1 mA to 0-1000 mADC | DIN Rail | UL Listed - USA & Canada | | Compare |
| API 4380 G Series DC to DC Transmitters |  | Absolute Process Instruments | 115 VAC, 230 VAC, 85-265 VAC or 60-300 VDC, 9-30 VDC | 0-1 V to ±10 VDC or 0-2 mA to 4-20 mA | 0-50 mV to ±10 VDC, 0-1 mA to 0-20 mADC | Surface | UL Recognized - USA & Canada | | Compare |
| APD 4380 Series DC to DC Transmitters |  | Absolute Process Instruments | 85-265 VAC or 60-300 VDC 9-30 VDC or 10-32 VAC | 0-1 V to 0-10 VDC, ±5 VDC, ±10 VDC, 0-2 mA to 4-20 mA (Sink or Source) | 0-10 mV to 0-130 VDC, ±5 mVDC to ±65 VDC, 0-200 μA to 0-50 mADC (Sink or Source) | DIN Rail | UL Listed - USA & Canada | | Compare |
| API 4380 G HV3 Series DC to DC Transmitters |  | Absolute Process Instruments | 115 VAC, 230 VAC, 85-265 VAC or 60-300 VDC, 9-30 VDC | 0-1 V to ±10 VDC or 0-2 mA to 4-20 mA | 0-1 V to ±200 VDC | Surface | UL Recognized - USA & Canada | | Compare |
| APD HV-DC Series DC to DC Transmitters |  | Absolute Process Instruments | 85-265 VAC or 60-300 VDC 9-30 VDC or 10-32 VAC | 0-1 V to ±10 VDC or 0-2 mA to 4-20 mA | 0-100 VDC to 0-1200 VDC | DIN Rail | None | | Compare |
| APD 4381 Series DC to DC Transmitters |  | Absolute Process Instruments | 85-265 VAC or 60-300 VDC 9-30 VDC or 10-32 VAC | 0-1 V to 0-10 V, ±5 V, ±10 V, 0-2 mA to 4-20 mA, Reverse Acting Optional | 0-50 mV to 2-10 VDC, ±25 mVDC to ±10 VDC, 0-500 μA to 4-20 mADC | DIN Rail | UL Listed - USA & Canada | | Compare |
| API 4385 G Series DC to DC Transmitters |  | Absolute Process Instruments | 115 VAC, 230 VAC, 85-265 VAC or 60-300 VDC, 9-30 VDC | 0-1 V to ±10 VDC or 0-2 mA to 4-20 mA | –50-0 mV to 20-40 VDC, 0-200 μA to 10-50 mADC | Surface | UL Recognized - USA & Canada | | Compare |
| API 7500 G Series DC to Frequency Transmitters |  | Absolute Process Instruments | 115 VAC, 230 VAC, 85-265 VAC or 60-300 VDC, 9-30 VDC | 0-1 Hz to 0-30 kHz MOSFET or TTL | 0-50 mV to ±10 VDC, 0-1 mA to 4-20 mA | Surface | UL Recognized - USA & Canada | | Compare |
| APD 7500 Series DC to Frequency Transmitters |  | Absolute Process Instruments | 85-265 VAC or 60-300 VDC 9-30 VDC or 10-32 VAC | 0-1 Hz to 0-30 kHz MOSFET or TTL | 0-50 mV to ±10 VDC, 0-1 mA to 4-20 mA | DIN Rail | UL Listed - USA & Canada | | Compare |
| APD 44Hx and APD 44Lx Series DC to DC High/Low Select Modules |  | Absolute Process Instruments | 85-265 VAC or 60-300 VDC 9-30 VDC or 10-32 VAC | 0-1 V to ±10 VDC or 0-2 mA to 0-20 mA, 4-20 mA | 0-50 mV to 0-10 VDC, ±25mV to ±10VDC, 0-1 mA to 0-20 mADC, ±0.5 to ±20 mA | DIN Rail | UL Listed - USA & Canada | | Compare |
