| Optical tone receiver | 270 Hz, 1 kHz, 2 kHz |
| Detection technique | Non-destructive macrobending |
| Loss | < 0.6 dB at 1310 nm |
| Spectral response | 800 nm to 1650 nm |
| Minimum fiber slack required for detection | 1.2 cm (1/2 in) |
| Core power detection, typicala | LFD-202: 0 dBm to –40 dBm LFD-202E: 23 dBm to –50 dBm |
| Fiber compatibility | Dual window, singlemode 8 µm to 10 µm core diameter |
| Coating diameter | 250 µm diameter |
| Coating | High refractive index, acrylate |
| a. At 1550 nm. | |
| Size (H x W x D) | 236 mm x 30 mm x 32 mm (9 5/16 in x 1 3/16 in x 1 1/4 in) |
| Weight | 0.3 kg (0.6 lb) |
| Battery | Standard 9 V alkaline battery |
| Battery life | Approx. 5000 readings |
| Temperature | Operating: –20 °C to 50 °C (–4 °F to 122 °F) Storage: –40 °C to 60 °C (–40 °F to 140 °F) |
| Humidity | 0% to 90% non-condensing at 35 °C |