Trigon BAG552 is a stand-alone ion vacuum gauge with a Bayard-Alpert hot cathode sensor only. It has two filaments, a replaceable sensor with its calibration chip and an OLED display, and measures high and ultra-high vacuum.
| Measuring Range | 5×10⁻¹⁰ … 2×10⁻² mbar, continuous |
| Accuracy | ±15% of reading |
| Supply Voltage | +24 V(dc) (+20…+28V(dc)) |