| Features | Flexs Q4 | Flexs Q5 | Flexs Q5 Pro |
| Supply Voltage Range | 8-36V | 9-60VDC | 9-60VDC |
| Wifi | No | Yes | Yes |
| Din Mountable Enclosure | No | Yes | Yes |
| LTE | N/A | No | Ethernet |
| Analog Input Impedance | 25 Kohm | 500 Kohm | 500 Kohm |
| Max Analog Sample Rate | 8 KSPS | 16 KSPS | 64 KSPS |
| Onboard Logic | Simple Expressions | Full Logic Scripting | Full Logic Scripting |
| 5V Regulated Output | 1% accuracy, Linear-Regulated | 0.1% accuracy, hybrid switching and linear | 0.1% accuracy, hybrid switching and linear |
| SD Card Support | Yes | Yes | Yes |
| Typical Measurement Internet Data Usage – (8 analog channels and 8 relay values), 1 minute sampling interval | 22.8 5MB | 2.5 MB | 2.5 MB |
| Relay Fusing | No, external fuses required | No, external fuses required | Yes, Digitally Resettable Programmable smart fuses and redundant physical fusing on each channel |
| Onboard Webserver Security | Good (Basic Auth & SHA256) | Excellent (AES256) | Excellent (AES256) |
| Additional Notes |
● Includes extensive testing for the most demanding and mission critical installations ● Includes calibration / test certificate.
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