| Part Number | ADAM-4118-AE | 
| Display | |
| LED Indicators | Status, Comm, and Ch. enable | 
| Power Supply | |
| Power Requirement | 10~48 VDC | 
| Analog Input | |
| Channels | 8 differential | 
| Voltage Range | 15 mV ±50 mV ±100 mV ±500 mV ±1 V ±2.5 V | 
| Current Input | ±20 mA 4~20 mA | 
| Direct Sensor Input | J, K, T, E, R, S, B Thermocouple | 
| Burn-out Detection | Yes (4~20 mA & all T/C) | 
| Channel Independent Configuration | Yes | 
| Sampling Rates | 10/100 samples/second (total) | 
| Resolution | 16-bit | 
| Input Impedance | Voltage: 20 MOhm Current: 120 Ohm | 
| Span Drift | ±25 ppm/°C | 
| Zero Drift | ±6 µV/°C | 
| CMR @ 50/60 Hz | 92 dB | 
| NMR @ 50/60 Hz | 60 dB | 
| High Common Mode | 200 VDC | 
| General | |
| Watchdog Timer | System (1.6 second) & Communication | 
| Connector | 2 x plug-in terminal block (#14~22 AWG) | 
| Temperature (Operating) | -40~85°C (40~185 °F) | 
| Humidity | 5~95 %RH | 
| Temperature (Storage) | -40~85°C (40~185 °F) | 
| Interface | RS-485 | 
| Isolation Protection | 3000 VDC | 
| Communication Protocol | ASCII command & Modbus/RTU | 
| Communication Speed | Serial: From 1,200 to 115.2 k | 
| Comm. Distance | Serial: 1.2 km | 
| Data Flow Control | Yes |