FMART

FMART T9Pro

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Our Verdict: The cheapest window robot worth buying — from a manufacturer with 25+ years of experience. Don't expect premium features, but the basics work.

FMART has been making cleaning robots since 1998, and the T9Pro brings that experience to window cleaning at an accessible price. Variable frequency 3,800Pa suction provides a firm grip, while ultrasonic atomisation spray from a 25ml tank keeps the glass wet during cleaning.

Experienced Manufacturer

With over 25 years of robot manufacturing, FMART knows how to build reliable cleaning machines. The T9Pro weighs just 1.0kg and comes with a 16.5ft safety rope and a 30-minute UPS battery backup. A 365-day warranty covers any defects.

Best Budget Buy

At under $150, the T9Pro is one of the cheapest window cleaning robots available from an established manufacturer, making it ideal for anyone who wants to try robotic window cleaning without a big investment.

Home window maintenance Glass curtain walls Bathroom glass and mirrors Office glass partitions

Specifications

Suction Power 3,800 Pa (variable frequency)
Spray System Ultrasonic atomisation
Water Tank 25 ml
Safety Rope 16.5 ft (5 m)
Battery Backup 30 minutes
Weight 1.0 kg
Warranty 365 days

Pros & Cons

A quick summary of where this model performs well and where it falls short.

Pros

  • Dual spinning pads for thorough cleaning
  • Auto water spray system
  • Intelligent zigzag cleaning pattern
  • Works on framed and frameless glass

Cons

  • Brand less known outside China
  • Heavier unit may be awkward to position
  • Pad replacement cost adds up
  • No app control — remote only

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