| Instrument type | HP/Agilent 8153A Lightwave Multimeter plug‑in mainframe |
| Module slots | 2 plug‑in module slots for 815xx series |
| Functions (with modules) | 1/2‑channel power meter, 1/2‑channel light source, loss test set, return |
| Display range (power) | +30 dBm to −110 dBm; 1000.00 mW to 0.01 pW (with appropriate sensor modules/heads) |
| Reference/offset range | Reference ±200.000 dBm/dB; display offset ±200.000 dB |
| External power sensors | Optical heads cover +27 dBm to −90 dBm |
| Interfaces | HP‑IB (GPIB) for remote control and data acquisition |
| Supported modules | Power sensors (81530A, 81531A, 81532A, 81536A), optical return‑loss (81534A), head interface (81533B), heads (81520A, 81521B, 81524A, 81525A), light sources (81542, 81551–81554) |
| Power supply | 100–240 Vrms AC, ±10 %, 48–66 Hz, approx. 35 VA max |
| Operating temperature | 0 °C to +55 °C |
| Calibration | Shipped calibrated to OEM specs; NIST/PTB‑traceable via sensor modules |