LiftMaster LMTBUL Monitored Photo Eyes

LiftMaster LMTBUL Monitored Through Beam Photoelectric Sensor

The LiftMaster LMTBUL is a high-performance, UL 325-compliant monitored through beam photoelectric sensor designed for advanced gate safety applications. With integrated diagnostics and industry-leading features, it provides reliable entrapment protection for commercial and residential gate installations.

Notable Features

• Extended range sensing up to 90 feet (27.4m)
• Built-in thermostatically controlled heater
• Smart alignment strength indicators
• NEMA 4X rated weatherproof enclosure
• Multi-view LED diagnostic lights
• Wireless network capability for dual-gate applications
• UL recognized and tested

Safety and Security Features

• Meets UL 325 requirements for entrapment protection
• Secure mounting hardware for harsh environments
• Protective hoods included
• Superior weather resistance
• Monitored technology for enhanced safety

Technical Specifications

Physical Characteristics

• Photo Eye with Hood: 3.72"H x 2.29"W x 2.76"D
• Construction: Stainless steel sensor hood
• Hood Material: Durable polycarbonate
• Mounting: Powder-coated galvanized brackets
• Cable Length: 10 ft (3m)

Electrical Specifications

• Sensor Input: 6.8V DC, 20mA (Black/Red Wires)
• Heater Input: 10-40V DC or 8-28V AC
• Heater Power: 4 watts maximum
• Heater Current: 170mA per pair @ 24V DC/VAC
• Interface: 4-Wire connection (2 for Eye; 2 for heater)

Environmental

• Operating Temperature: -40°F to 149°F (-40°C to 65°C)
• NEMA 4X rated enclosure
• All-weather performance capability
• Built-in heater (not recommended for solar applications)

Diagnostic Indicators

• Solid Blue: Optimal alignment
• Blinking Blue: Near alignment (faster blinking indicates closer to optimal)
• Solid Red: Misaligned or obstructed

Installation Features

• Versatile gimble bracket for precise alignment
• Increased beam angle for easier setup
• Wireless networking capability for dual-gate applications
• Simple mounting system

Package Contents

• 1x Transmitting unit with hood
• 1x Receiving unit with hood
• Mounting brackets
• Installation hardware
• 10ft wire
• Installation instructions

Applications

• Gate entrances
• Commercial facilities
• Industrial gates
• Residential gates
• High-security installations

Warranty

2-Year Manufacturer's Warranty

Download Information:

• Installation / User Manual