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ZY-503 handheld optical power meter
Item: ZY-503 handheld optical power meter

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.
1. High sensitivity, large dynamic range
2. Universal connector interface: FC/SC/ST (option LC/MU.)
3. Quick response, without warm-up and reduce testing time
4. Low-voltage display function
5. Optional auto-shutdown feature
6. User self- calibration function
7. Directly displaying relative ratio test
8. The relative reference value and the relative value displaying simultaneity
9. Uses standard AAA batteries which will be easy-to-use
10. Display the battery level and Warning notice is available when the battery is low
1. Maintenance Telecom
2. Maintenance CATV
3. Test Lab of Fiber Optic
4. Optical fiber sensors


Type 503A 503B
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 5%
Standard Wavelength (nm) 850,1300,1310,1490,1550,1625
Resolution (dB) 0.01
Power Supply 3pcs AAA 1.5V batteries, rechargeable batteries and AC adapter
working time (h) 120
Operating Temperature (°C) -10~+50
Storage Temperature (°C) -20~+70
Automatic shutdown(min) 10
Dimension (mm) 125 (L)*65 (W)*29 (H)
Weight (g) 160 (include batteries)