Feature:1. [Simultaneous Testing] This PON power meter allows for synchronous testing of the power of three wavelengths in the PON system, with resolution of 0.01dB.2. [Color LCD Touch Screen] The device is equipped with LCD touch screen that displays tested results in true colors, providing a clear and intuitive user interface.3. [Long Battery Life] Powered by 3.7V 6600mAH lithium battery, this power meter offers an extended working time, ensuring uninterrupted testing.4. [Handheld and Portable] Designed as a handheld tester, this PON power meter is compact and lightweight, making it easy to carry and use in various testing scenarios.5. [User Friendly Operation] With intuitive screen and convenient key area, this power meter is easy to operate, ensuring convenient and hassle free operation for users.Specification:Item Type: PON Optical Power MeterMaterial: ABSUncertainty (dB): 0.5Polarization Related Loss (dB): <0.25Linearity (dB): 0.1Penetration Insertion Loss (dB): <1.5Resolution: 0.01dBUnit: dBm/xWLCD: 480x800, True Color Touch ScreenBattery: 3.7V 6600mAH Lithium Battery (Built in)Working Temperature: -10 to 60Storage Temperature: -25 to 70Standard wavelengths1310(upstream) 1490(downstream) 1550(downstream) Pass zone(nm)1260-1360 1470-1505 1535-1570 Range(dBm)-50~+10-50~+10 -68Isolation at 1310nm(dB)>40>40Isolation at 1490nm(dB)>40 >40Isolation at 1550nm(dB)>40>40.Package List:1 x PON Power Meter1 x Rope1 x Carrying Case1 x Charger1 x Data Cable1 x CD Manual1 Pack x Cleaning Swabs