Membrane keyboard KH-SK89-303-Ctrl

89-keyindustrialUSB

Overview
The KH-SK89-303-Ctrl is a sealed industrial keyboard in full-silicone construction, engineered for control systems, data-entry terminals and harsh environments. It features two dedicated Ctrl keys to streamline shortcuts and operator workflows, and an IP67 front seal for protection against dust and water. Place of Origin: China. Brand Name: CNKHTECH. Certification: CE/ROHS/FCC.

Features

• Fully silicone sealed keypad with IP67 front protection
• Two dedicated Ctrl keys for flexible shortcut mapping
• 89 backlit keys with gold-plated contacts for reliable signal transmission
• USB interface for plug-and-play connectivity
• Wide operating temperature and high humidity tolerance
• Easy-clean surface suitable for industrial environments

Specifications
Dimensions: 303 x 128 mm
Keys: 89 silicone backlit keys
Power Supply: 5.0V DC ±5%
OS Compatibility: Windows (all versions), Vista, Linux, Unix, Mac OS X, iOS, Android
Operating Temperature: -40°C to +80°C
Storage Temperature: -45°C to +85°C
Protection Level: IP67 (front)
Connector: USB
Operating Humidity: 30–95% RH
MTBF: > 50000 hours
MTTR: < 30 minutes
Warranty: 1-year limited warranty

Technical specifications

• Model: KH-SK89-303-Ctrl
• Construction: Full silicone, sealed (front IP67)
• Dedicated Keys: Two Ctrl keys
• Contacts: Gold-plated
• Interface: USB
• Power: 5.0V DC ±5%
• Certifications: CE / ROHS / FCC
• Place of Origin: China
• Brand: CNKHTECH