Model: 3903-DF – 1 Amp Rating

Product Overview

As a retailer of hot tub spa parts, I’m featuring this specialized Tecmark pressure switch. This field-adjustable switch provides precise pressure monitoring with the flexibility to fine-tune settings according to specific system requirements.

Key Features

• 1 Amp rating for control circuit applications
• Field adjustable settings
• SPST (Single Pole Single Throw) configuration
• 1/8″ MPT connection
• Professional Tecmark engineering
• Precision monitoring capabilities

Technical Specifications

Installation Features

• Standard 1/8″ MPT fitting for broad compatibility
• Field adjustable settings for custom calibration
• Simple mounting options
• Versatile positioning capability
• Clear adjustment access

Performance Benefits

• Precise pressure monitoring
• Reliable switching action
• Consistent operation
• Extended service life
• Adaptable pressure settings

Application Uses

• Low-current control circuits
• Electronic system monitoring
• Safety circuit integration
• Equipment protection
• Process control systems

Design Advantages

• Compact form factor
• Durable construction
• Weather-resistant housing
• Protected internal components
• Accessible adjustment mechanism

Calibration Features

The field-adjustable design allows for:

• Custom pressure thresholds
• System-specific settings
• Fine-tuned operation
• Optimized performance
• Precise control points