Window Cleaning Robot with App & Remote Control | HCR-21
Window Cleaning Robot with App & Remote Control | HCR-21
Smart Window Cleaning Robot – Effortless, Streak-Free Glass Every Time
Say goodbye to the hassle of manual window washing. The HCR-21 Cordless Window Cleaning Robot by P3 is an intelligent, fully automated glass cleaner that clings to your windows with powerful 2,800 Pa suction and works its way across the surface with precision — all while you stay safely on the ground. Control it effortlessly via the dedicated smartphone app or the included remote control, making it ideal for homes, offices, and outdoor glass facades.
Made in Guangdong, China.
Key Features
- Powerful 2,800 Pa Suction: Keeps the robot firmly attached to the glass for safe, uninterrupted cleaning on vertical and angled surfaces.
- App + Remote Control: Direct the robot from your smartphone or the included remote — choose from automatic cleaning modes or guide it manually.
- Automatic Edge Detection: Smart frameless edge detection ensures the robot stays on the glass and cleans right to the very edge without tipping off.
- Built-In Water Spray System: Integrated spray nozzle lightly mists the surface for a deeper, streak-free clean — no pre-wetting required.
- Super Slim & Lightweight Profile: At just 216 × 216 × 75 mm and 1,030 g, the compact design fits into tight window frames and is easy to store.
- Intelligent Cleaning Paths: Optimized route planning covers every inch of the glass without overlapping or missing spots.
- 72 W Rated Power / Universal Input: Compatible with AC 100–240 V, 50/60 Hz — ready to use worldwide without an adapter.
- 500 mAh Safety Backup Battery: In the rare event of a power interruption, the onboard backup battery keeps the robot attached to the glass long enough for safe retrieval.
- 65 dB Low Noise Operation: Quiet enough to run during work hours, nap times, or evening hours.
- 1-Year Warranty: Backed by the manufacturer with full after-sales technical support.
- Certifications: CB, CE, 3C, RoHS, EMC & FCC certified for international safety and compliance.
Technical Specifications
| Model | HCR-21 |
| Input Voltage | AC 100–240 V, 50/60 Hz |
| Rated Power | 72 W |
| Suction Force | 2,800 Pa |
| Backup Battery | 500 mAh |
| Charging Time | 4 Hours |
| Dimensions | 216 × 216 × 75 mm |
| Weight | 1,030 g |
| Noise Level | 65 dB |
| Control Mode | Smartphone App + Remote Control |
| Edge Detection | Automatic + Frameless |
| Warranty | 1 Year |
Who Is This For?
The HCR-21 is perfect for homeowners with high or hard-to-reach windows, property managers overseeing large glass facades, office buildings, conservatories, and anyone who wants consistently spotless glass without ladders, squeegees, or hiring a cleaning crew. Its outdoor-rated application means it handles both interior and exterior glass surfaces with ease.
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Frequently Asked Questions
Q: How does the window cleaning robot stay attached to the glass?
A: The HCR-21 uses a powerful 2,800 Pa motor-driven suction system that creates a strong vacuum seal against the glass surface, keeping it firmly in place on vertical windows and even slightly angled glass during the entire cleaning cycle.
Q: Can I use the window cleaning robot on all types of windows?
A: Yes. The HCR-21 is designed for flat glass surfaces including standard framed windows, frameless glass panels, glass doors, conservatory panels, and outdoor glass facades. The automatic edge detection system adjusts for both framed and frameless window types.
Q: What happens if the power goes out while the robot is on the window?
A: The built-in 500 mAh backup battery immediately takes over in the event of a power interruption, keeping the robot securely attached to the glass so you have time to safely retrieve it.
Q: How do I control the window cleaning robot?
A: You can control the HCR-21 using the included remote control or via the dedicated smartphone app (compatible with both iOS and Android). The app lets you select cleaning modes, monitor progress, and guide the robot manually when needed.
Q: What certifications does the HCR-21 window cleaning robot have?
A: The HCR-21 holds CB, CE, 3C, RoHS, EMC, and FCC certifications, confirming it meets international electrical safety, electromagnetic compatibility, and environmental compliance standards.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.