Description: SX503 Handheld Optical Power Meter is a self-developed test instrument Which is widely used for installation, operation and maintenance of fiber-optic network. It features smart appearance, backlight, auto-shutdown and widely dynamic range, good testing precision and universal optical connector for FC/SC/ST. Features: 1. High sensitivity, large dynamic range 2. universal connector interface: FC/SC/ST-LC/MU. 3. Quick response, without warm-up and reduce testing time 4. Low-voltage display function 5. Optional auto-shutdown feature 6. Automatic calibration function 7. The relative ratio test 8. Large LCD display and backlight Application: 1. Maintenance Telecom 2. Maintenance CATV 3. Test Lab of Fiber Optic 4. Optical fiber sensors Specifications: Type SX503A SX503B Wavelength(nm) 800~1650 Detector InGaAs Optical Connector FC SC ST/ Universal 2.5mm adaptor (LC,MU can be optional ) Measurement Range(dBm) -70~+10 -50~+26 Uncertainty ¡À5% Standard Wavelength(nm) 850,1300,1310,1490,1550,1625 Resolution(dB) 0.01 Power Supply 3pcs AAA 1.5V batteries working time(h) 120 hours Operating Temperature(¡ãC) -10~+50 Storage Temperature(¡ãC) -20~+70. Weight:160g.