• Water treatment and tank measurement
• Chemical and petrochemical industries
• Pharmaceutical and food & beverage manufacturing
• Refining process vessels and sewage treatment
• Hydroelectric power generation and dams
• Process control

• Compact size with easy installation using a built-in bubble spirit level
• Advanced technology with a unique appearance
• No-contact measurement reducing maintenance needs
• Resistant to corrosion, foam, vapor, temperature, and pressure changes
• Supports RS485 MODBUS protocol
• Wide power supply range with low power consumption

The HR1200 is a 60GHz millimeter wave radar level sensor developed by Holykell. It offers non-contact measurement for high accuracy and minimal maintenance. The sensor is designed for liquid measurement with a high precision of ±2mm and strong anti-interference capabilities.

• Frequency: 1~10Hz
• Measuring range: 0.2-12m for water, 0.2-8m for diesel, 0.2-6m for gasoline
• Measurement accuracy: ±2mm
• FOV angle: 8°
• Lens antenna size: 15mm
• Center frequency: 60GHz
• Communication rate: Default 115200bit/s, adjustable
• Communication Mode: RS485 MODBUS RTU
• Power Supply: 12Vdc recommended (9-24Vdc available)
• Operational temperature: -40~85℃
• Power consumption: Minimum 0.2W, Maximum 0.45W
• Product Size: Ø73*82mm
• Protection class: IP68
• Weight: 440.5g (excluding connection wire)

• Pin 1: VCC (Red)
• Pin 2: GND (Black)
• Pin 3: RS-A (Yellow)
• Pin 4: RS-B (Green)

Range selection is based on application needs, with a part number selection table provided for customization. Options include range, level units, signal output, power supply, measuring medium, accuracy, and cable length.