Choosing the wrong video intercom monitor is the most common mistake when making a replacement. In this guide, we help you choose the right model according to your installation, without complications.
Step 1: Identify your system
Before choosing a monitor, you need to know what system you have. Remove the current monitor and count the wires:
- ✅ 2 wires → 2-wire BUS SCS system (modern Tegui/BTicino)
- ❌ 4 or more wires → 4+N wire system (conventional analog)
Step 2: Choose your monitor
2-wire BUS SCS system
Tegui Series 8 Monitor – Ref. 374494
The most popular option for direct replacement in existing installations. Color screen, modern design, and easy installation.
- ✅ Direct replacement without construction work
- ✅ Compatible with Sfera New and Sfera Robur panels
- ✅ Competitive price
- ❌ No WiFi or app
Tegui Classe 100X16E WiFi Monitor – Ref. 344786
The premium option for those who want to control their door from their mobile. Directly replaces Swing monitors (374455/374460).
- ✅ Built-in WiFi + official app
- ✅ Direct replacement for Swing 374455/374460
- ✅ High-quality color screen
- ❌ Higher price

4+N wire system (conventional)
Tegui T-71U Universal Phone – Ref. 374240
The economical and universal solution for conventional 4+N wire installations. Compatible with most brands on the market.
- ✅ Compatible with 4+N systems from multiple brands
- ✅ Very competitive price
- ✅ Easy installation
- ❌ Audio only, no video
Quick summary
- 2 wires + basic needs → Tegui Series 8 (374494)
- 2 wires + want WiFi and app → Tegui Classe 100X16E WiFi (344786)
- 4+N wires → Tegui T-71U (374240)
⚠️ Still have doubts? Send us a photo of your current installation and we’ll recommend the exact model you need. No obligation.