The following table presents the most known 19" environmental IP monitoring units.
| Vutlan | Vutlan | |||
|---|---|---|---|---|
| Country | Slovakia | |||
| Product | VT325t | VT335t | VT825t / VT825tt | VT855t / VT855tt |
| Internal sensors | Temperature, Voltage | Temperature, Voltage | Temperature, Voltage | Temperature, Voltage |
| Sensor ports | 4 | 4 | 8 | 8 |
| Dry contacts IN/OUT | 4 | 4 | 16 | 32/8 |
| Output relay | 2 | 2 | 2+2 | 2+2 |
| Redundant power supply | No | Y | Y | Y |
| SNMP v1 - v3 | Y | Y | Y | Y |
| Ping | Y | Y | Y | Y |
| Alarm output | 2 | 2 | 2 | 2 |
| Redundant network | Int. Modem | Ext. modem | Ext. modem | Ext. modem |
| RS485 Reader | No | Possible | Possible | Possible |
| Modbus/TCP | No | Possible | Possible | Possible |
| CAN | 1 | 1 | 1 | 2 |
| USB | 1 | 1 | 1 | 1 |
| USB cam possibility | Y | Y | Y | Y |
| Extension units | 20 | 20 | 20 | 20 |
| SD | Y | Y | Y | Y |
| Operating t°C | -10℃~ +70℃ | -25℃~ +85℃ | -25℃~ +85℃ | -25℃~ +85℃ |
| Operating H% | 5 – 95 | 5 – 95 | 5 – 95 | 5 – 95 |
| Warranty Years | 2 | 2 | 2 | 2 |
| Max sensors tested | 100 | 100 | 110 | 110 |
| Max distance m. | 225 | 225 | 225 | 225 |
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