| SKU | Listing | Voltage | Wiring | Contact Type | Current | Smoke Sensor | Temp Range |
|---|---|---|---|---|---|---|---|
| B402BA | ULC | 24 VDC | 4-Wire | Form A&C | 17-36 mA | ||
| 2151A | ULC | Depends on base | Depends on base | Depends on base | Depends on base | Photoelectric | 32F to +130F (0 C to +54.4C) |
| B401BA | ULC | 12/24V non-polarized | 2-Wire | None | 10-130mA max limited by panel |
