1. Connector interface: Universal connector interface physical contact (ucipc-pc)

2. Size: 2.8 (7.2 cm) length X 1.4 (3.5 cm) width X 5.6 (14.2 cm) height

3. Maximum spectral width: less than 55 nanometers

4. Measurement range: 840-880 nanometers

5. Modulation frequency: 270 kHz

6. Power supply: (2) 1.5 V AA type battery

7. Stability:+/-0.05 dB/hour