Bailey Motor Equipment Co. provides reliable and precise fluid level switch gauges for industrial, automotive, and marine applications. These devices are essential for monitoring liquid levels in tanks, reservoirs, and engines while providing electrical feedback for alarms or system control. Our selection focuses on Murphy switch gauges and Murphy level switches, known for durability, accuracy, and ease of installation. With decades of experience supplying high-quality instrumentation, Bailey Motor Equipment Co. offers products built to perform under demanding conditions.
What Are Fluid Level Switch Gauges?

A liquid level switch combines a visual gauge with an electrical switch. The gauge shows real-time fluid levels, while the switch activates when the liquid reaches a preset point. Murphy level switches provide reliable alarms or system shutdowns to protect equipment from low or high fluid conditions. These gauges are compact, durable, and engineered for consistent performance in engines, hydraulic systems, fuel tanks, and industrial reservoirs.
Benefits of Using Murphy Switch Gauges
Choosing Murphy switch gauges from Bailey Motor Equipment Co. delivers several advantages:
- Protects engines, compressors, and industrial equipment from low fluid damage.
- Provides accurate, real-time level readings.
- Simplifies monitoring with a combination of visual and electrical feedback.
- Offers models suitable for vibration, heat, and industrial environments.
- Provides flexible options for standard or hazardous locations.
Types of Fluid Level Switch Gauges Offered
Swichgage® (sometimes spelled Swich gauge or Swichgage) is a combination instrument that:
- Indicates fluid level via a dial (mechanical float system)
- Includes a switch contact that changes state when the level hits a set point (typically a low‑level alarm or shutdown)
Bailey Motor Equipment Co. carries a range of switchgages to fit various applications:
L150 Level Switchgage
The L150 combines a liquid level gauge with a low-limit switch. It features a field-adjustable set point and is ideal for coolant, hydraulic, and oil tanks. The gauge delivers accurate readings while the switch triggers alarms or system control when fluid levels drop below the designated point.
EL150EX Explosion-Proof Level Switchgage
The EL150EX is certified for hazardous environments and provides reliable performance in Class I, Division I areas. The fixed set point guarantees safety in critical applications, making it a preferred choice for industrial tanks and engine rooms that require explosion-proof devices.
EL150K1 Standard Level Switchgear
The EL150K1 delivers a dependable combination of mechanical gauge and switch. It provides consistent monitoring for engines, fuel tanks, and industrial reservoirs. This model offers an effective solution for systems that require straightforward level measurement and electrical switching without additional complexity.
How Murphy Level Switches Work
Murphy level switches operate using a float that drives the pointer on the gauge. As liquid rises or falls, the float moves and activates a switch at a preset level. This switch can trigger alarms, indicator lights, or system shutdowns to protect equipment. These gauges provide both visual information and control capability, allowing immediate action when liquid levels move outside the safe range.
Applications of Liquid Level Switches
Bailey Motor Equipment Co.’s Murphy switch gauges are used across multiple industries:
- Engine coolant reservoirs
- Fuel and oil tanks
- Hydraulic systems
- Industrial fluid storage
- Marine and agricultural equipment
- Backup or emergency shutdown systems
Each product ensures reliable monitoring and quick response to changing fluid conditions, helping operators maintain safe and efficient system performance.
Protect Your Equipment with Reliable Fluid Level Monitoring
Keep your engines, tanks, and industrial systems safe with precise and durable Murphy switch gauges. Choose a liquid level switch or Murphy level switch that delivers accurate readings and triggers alarms or system control when levels move outside the safe range. Our team at Bailey Motor Equipment Co. can help you select the right model for your application and provide fast, expert support. Don’t wait until a low fluid condition causes costly downtime—contact us today to secure your equipment and maintain uninterrupted operation.Bailey Motor Equipment Co. provides reliable and precise fluid level switch gauges for industrial, automotive, and marine applications. These devices are essential for monitoring liquid levels in tanks, reservoirs, and engines while providing electrical feedback for alarms or system control. Our selection focuses on Murphy switch gauges and Murphy level switches, known for durability, accuracy, and ease of installation. With decades of experience supplying high-quality instrumentation, Bailey Motor Equipment Co. offers products built to perform under demanding conditions.
What Are Fluid Level Switch Gauges?
A liquid level switch combines a visual gauge with an electrical switch. The gauge shows real-time fluid levels, while the switch activates when the liquid reaches a preset point. Murphy level switches provide reliable alarms or system shutdowns to protect equipment from low or high fluid conditions. These gauges are compact, durable, and engineered for consistent performance in engines, hydraulic systems, fuel tanks, and industrial reservoirs.
Benefits of Using Murphy Switch Gauges
Choosing Murphy switch gauges from Bailey Motor Equipment Co. delivers several advantages:
- Protects engines, compressors, and industrial equipment from low fluid damage.
- Provides accurate, real-time level readings.
- Simplifies monitoring with a combination of visual and electrical feedback.
- Offers models suitable for vibration, heat, and industrial environments.
- Provides flexible options for standard or hazardous locations.
Types of Fluid Level Switch Gauges Offered
Swichgage® (sometimes spelled Swich gauge or Swichgage) is a combination instrument that:
- Indicates fluid level via a dial (mechanical float system)
- Includes a switch contact that changes state when the level hits a set point (typically a low‑level alarm or shutdown)
Bailey Motor Equipment Co. carries a range of switchgages to fit various applications:
L150 Level Switchgage
The L150 combines a liquid level gauge with a low-limit switch. It features a field-adjustable set point and is ideal for coolant, hydraulic, and oil tanks. The gauge delivers accurate readings while the switch triggers alarms or system control when fluid levels drop below the designated point.
EL150EX Explosion-Proof Level Switchgage
The EL150EX is certified for hazardous environments and provides reliable performance in Class I, Division I areas. The fixed set point guarantees safety in critical applications, making it a preferred choice for industrial tanks and engine rooms that require explosion-proof devices.
EL150K1 Standard Level Switchgear
The EL150K1 delivers a dependable combination of mechanical gauge and switch. It provides consistent monitoring for engines, fuel tanks, and industrial reservoirs. This model offers an effective solution for systems that require straightforward level measurement and electrical switching without additional complexity.
How Murphy Level Switches Work
Murphy level switches operate using a float that drives the pointer on the gauge. As liquid rises or falls, the float moves and activates a switch at a preset level. This switch can trigger alarms, indicator lights, or system shutdowns to protect equipment. These gauges provide both visual information and control capability, allowing immediate action when liquid levels move outside the safe range.
Applications of Liquid Level Switches
Bailey Motor Equipment Co.’s Murphy switch gauges are used across multiple industries:
- Engine coolant reservoirs
- Fuel and oil tanks
- Hydraulic systems
- Industrial fluid storage
- Marine and agricultural equipment
- Backup or emergency shutdown systems
Each product ensures reliable monitoring and quick response to changing fluid conditions, helping operators maintain safe and efficient system performance.
Protect Your Equipment with Reliable Fluid Level Monitoring
Keep your engines, tanks, and industrial systems safe with precise and durable Murphy switch gauges. Choose a liquid level switch or Murphy level switch that delivers accurate readings and triggers alarms or system control when levels move outside the safe range. Our team at Bailey Motor Equipment Co. can help you select the right model for your application and provide fast, expert support. Don’t wait until a low fluid condition causes costly downtime—contact us today to secure your equipment and maintain uninterrupted operation.