| WebRelay-Dual | New WebRelay-Dual (X-301) | |
|---|---|---|
| Relays | 2, 1-Amp max | 2, 3-Amp max |
| Opto-Inputs | 2 | 2 |
| Supply Voltage | 9-28VDC | 9-28VDC |
| Events | 5 | 100 |
| Real Time Clock | Yes | Yes, with NTP (Timer server) synchronization |
| Advanced Programming | No | Yes, in BASIC language |
| Remote Services | No | Yes |
| SNMP | No | Yes |
| Voltage Monitoring | No | Yes |
| Internal Temperature Monitoring | No | Yes |
| Email Alerts | No | Yes |
| Logging | No | Yes |
| Maintain Previous Relay State | No | Yes |
| Field Upgradable | No | Yes |
| Simple Firewall | No | Yes |
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