Provides accurate and dependable protection
• External LEDs and simplified wiring for easy installation and testing and patented adjustable probe sensitivity
• 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 LFA0243S

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

Taco LTR0243T-1

Electronic operation, easy to install and wire
• Red low water indicating LED, green power indicating LED
• Automatic reset and now with test butTon
• 20000 ohm probe sensitivity
• NEMA 1 enclosure
  
  

  McDonnell & Miller RB-122

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

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 550P

McDonnell & Miller 61

No lock out with loss of power if probe is in water
• Test butTon
• Green LED indicates power on
• Red LED indicates low water
• 20000 ohm probe sensitivity
• With standard probe
  
  

  McDonnell & Miller 752P-MT-24