* Test 6 state of ONT and OLT.
* Providing 1310nm and 1490nm wavelengths optical power test.
* Used in Burst mode measurement of 1310nm upstream.
* 10 minutes Auto-off function can be activated or deactivated
* AA alkaline and AC adapter for power supply,Rechargeable Battery is optional
* Support English and Chinese
* Threshold can be set
* Providing VFL function