PuRuiKai Window Cleaning Robot with Double Nozzle Sprayer and Remote Control: Check Frame Depth, Power Cord and Minimum Glass Size Before Buying

A robot that sticks to glass and wipes it for you: this PuRuiKai model adds a double water sprayer, so the machine wets the glass itself instead of relying entirely on pre-sprayed liquid, and it is driven with a remote control. Its rating sits at 93.3% positive feedback, noticeably below the 98% common in this batch, so read the negative reviews for the failure modes before trusting your second-floor windows to it. Three fitment checks decide whether it works on your windows at all. Frame depth: the safety rope and pad need something to grip, so deep-profile frames matter on the edge pass. Power: this class of robots runs on a power cord, not a battery — confirm cord length reaches every window you plan to clean, and remember a suction loss means the cord is the lifeline. Minimum glass size: very narrow panes give the robot no room to turn, and the listing does not state its minimum pane dimension, so measure your smallest window and ask the seller whether it qualifies.