
Reliable Freezer or Cooler Door Monitoring for Safety and Compliance
The Modularm® DL-35™ Freezer/Cooler Door Alarm and Monitor is a cost-effective, ETL-listed solution designed for manufacturer integration into walk-in freezers and coolers.
Engineered to help foodservice and commercial refrigeration operators maintain product integrity, conserve energy, and improve safety, the DL-35 provides a streamlined way to monitor door usage.
When a walk-in door remains ajar beyond the selected delay, the DL-35 issues both audible and visual alarms, ensuring personnel quickly respond. The system also automatically controls interior compartment lights, replacing traditional light switches for greater energy savings.
Compact, reliable, and easy to install, the DL-35 is an essential OEM component for enhancing performance, safety, and efficiency in refrigeration systems.
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Modularm® DL-35™ Door Alarm Monitor Features
Door Ajar Alarm: Visual and audible notifications with adjustable delay (5–45 minutes)
Automatic Light Control: Eliminates the need for separate switches and saves energy
Optional Panic Alarm: IP-1 pushbutton adds entrapment protection for worker safety
Field-Adjustable Settings: Flexible door monitor delay option for various applications
Multi-Door Capability: Supports multiple magnetic door contacts for complex installations
ETL Listed: Independently tested and certified for safety and compliance
Optional Accessories & Compatible Products
The 75LCT Touchscreen Multi-Monitor safeguards perishables with alarms for temperature fluctuations, power outages, and door-ajar.
The 75LC Multi-Monitor for walk-in coolers & freezers saves energy & maintenance costs, protects perishables, and increases operator safety.
The IP-1 Illuminated Push Button Panic/Entrapment Alarm provides light control and auto-panic from inside the unit to ensure employee safety.
Benefits of the DL-35™ Door Alarm Monitor
Energy Efficiency: Prevents coil icing and reduces maintenance costs while saving on utility expenses.
Food Safety: Helps maintain proper cold storage conditions, preserving product integrity.
Lower Operational Costs: Minimizes equipment wear and eliminates the need for manual light switches.
Ease of Integration: Compact design and flexible wiring simplifies installation for walk-in manufacturers.
Challenges the DL-35™ Helps Solve
Multi-Door Management
Supports multiple magnetic contacts, giving OEMs flexibility in complex installations.
Equipment Maintenance
By reducing coil icing, the DL-35 cuts down on costly service calls and downtime.
Food Safety Compliance
Prevents improper storage temperatures, ensuring perishable products stay within safe limits.
Frequently Asked Questions
Modularm® DL-35™
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What does the DL-35 monitor?
The DL-35 monitors door status, providing alarms when doors are left ajar too long, and it controls compartment lighting.
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Can it support more than one door?
Yes, multiple magnetic contacts can be wired in series, allowing monitoring of multiple doors with a single unit.
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How is the alarm delay configured?
The alarm delay is field-adjustable between 5 and 45 minutes using DIP switches inside the unit.
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What safety features can I add on?
The DL-35 offers an optional IP-1 Illuminated Pushbutton that provides panic/entrapment alarms for personnel safety.
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Is the DL-35 ETL listed?
Yes, it is ETL listed and conforms to UL and CSA standards, ensuring quality and safety compliance.
Specifications
Dimensions: 4.5” L × 4.5” W × 2.3” D
Power Supply: 120VAC / 60Hz @ 90mA max (surge protected)
Ambient Temperature: -10°C to 52°C (14°F to 126°F)
Light Contacts: N/O, 30A @ 120/240 VAC
Cable Length: 30m max
Fuse: Automatic resettable, non-replaceable










