Pulsar n850 - Pulsar Digisight N850 LRF Digital Night Vision Rifle Scope

First n850 lasted 4 months. Not holding POI. Replaced under warranty. New scope. Brand new out of the box scope is difficult to start up. Controler button is sticky in some positions. Used for a 16 mths as a hand held spotting scope. Mounted on 223 rifle and wont hold poi. Now after one and a half years this scope wont turn on. ABSOLUTE RUBBISH SCOPE. DO NOT BUY THIS SCOPE. I SUSPECT THAT PULSAR EQUIPTMENT IS GARBAGE. THEY SHOULD NOT BE ALLOWED TO SELL THIS PROCUCT!!!!!!!BUYER BEWARE.