| Specification | Technical Details |
| Brand | Anchor |
| Model | Roma |
| Product Code | 66133B |
| Product Type | Bell Push Switch With Indicator |
| Rated Current | 10 A |
| Voltage | 240 V |
| Frequency | 50 Hz |
| No. of Modules | 1-Module (1M) |
| Dimensions (LxBxH) | 2 x 3 x 4 CM |
| Unit Weight | 0.2 kg |
| Material Logic | Flame Retardant Polycarbonate |
10A Momentary & Status Logic: Engineered by Anchor to handle 10 Amp signaling bursts with an integrated neon indicator for easy location in dark environments.
High-Tension Spring-Return Matrix: Features a robust internal spring logic that ensures the switch instantly resets after use, preventing doorbell burnouts and continuous ringing.
1-Module Compact Structural Matrix: Features an ultra-slim modular design that fits into a single 1M Roma slot, maximizing space on exterior entrance switchboards.
Silver-Alloy Precision Contact Shield: Built with premium silver-alloy internal contacts designed to minimize sparking and ensure consistent signaling over thousands of operations.
Flame-Retardant Polycarbonate Shield: Constructed from high-grade, impact-resistant polycarbonate material that provides superior electrical insulation and thermal stability.