• Provides accurate and dependable protection
• External LEDs and simplified wiring for easy
• Probe-style, microprocessor-based control that detects the fluid level in hot water and steam boilers and reacts when the level falls below the minimum safe operating level
• SPDT switch contact

Taco LFM1203S-1

• Automatically shuts off burner in a low water condition to prevent boiler damage
• Heavy duty construction and 16 amp relay suitable for virtually any commercial water boiler needs
• Burner circuit test butTon and interrupts power immediately in a low water condition
• LED indicator lights
• SPDT switch contact
• Includes EL1214-P probe with longer nut for boilers with thicker jackets

Hydrolevel Parts 550P

• Patented adjustable probe sensitivity
• External LEDs and simplified wiring for easy installation and testing
• Includes external test butTon, adjustable delay on break (DOB) and delay or make
• SPDT switch contact

Taco LTA1203S-2

• Provides step-by-step, diagrammed instructions for fast, easy installation and wiring
• Burner circuit locks-out if water remains below probe for 30 sec
• Burner circuit test butTon allows for testing the control without lowering the water level and indicator lights for easy troubleshooting
• SPDT switch contact

Hydrolevel Parts B112-3

• Compact design and burner circuit test butTon
• Power and low water LED indicators
• Automatically restarts burner on return of water level
• Interrupts power immediately in a low water condition and features test butTon, onboard indicating lights and easy to follow installation instructions
• Includes plug-in wire harness with labelled quick connect terminals
• SPDT switch contact

Hydrolevel Parts 1150MINI

24SV

McDonnell & Miller PSE-802-RX2-24

• Brass threads provide a metal-to-metal seal that ensures a leak-free installation
• Integrated wrench flats enable secure installation without damage to the housing
• Compact size, easy to install and wire
• Green LED indicates power on
• Red LED indicating low water condition
• Solid state operation
• 15000 ohm probe sensitivity

McDonnell & Miller RB-24

• Patented adjustable probe sensitivity
• External LEDs and simplified wiring for easy
• Probe-style, microprocessor-based control that detects the fluid level in hot water and steam boilers and reacts when the level falls below the minimum safe operating level
• Includes external test butTon, adjustable delay on break (DOB) and delay or make (DOM)
• SPDT switch contact

Taco LTA0243S-2

45-501

• 50 VA at 24 VAC pilot duty rating
• 2-1/8" probe
• 30 sec delay on make, 10 sec delay on break
• Features an automatic reset, test switch and LED low water indicator light
• No lock out with loss of power if probe is in water
• Self-cleaning probe
• NEMA 1 enclosure

McDonnell & Miller 153927

• 125 VA pilot duty rating
• Compact design
• Interrupts power immediately in a low water condition
• Features test butTon, on board indicating lights and easy to follow installation instructions
• Automatically restarts burner on return of water level
• Includes plug-in wire harness with labeled quick connect terminals

Hydrolevel Parts 1100