Top Remote Tank Gauges for Monitoring Water, Propane, and Oil Levels
Managing fluid levels in storage tanks requires reliable monitoring solutions that eliminate the need for manual checks. Whether you are tracking home heating oil, propane reserves, or water levels in a vessel, modern tank gauges provide critical visibility through remote connectivity. Remote monitoring systems now offer various transmission methods, including WiFi, cellular, and ultrasonic sensors, designed to integrate seamlessly into residential or commercial setups. Selecting the right hardware depends on your tank type, the medium being measured, and your preference for smart home integration or direct local readouts.
Our guide compares five distinct tank monitoring options based on their specific utility and connectivity features. From solar-powered cellular units for propane to universal ultrasonic sensors for water, these tools aim to provide consistent data. We focus on technical specifications such as tank size compatibility, power requirements, and alert capabilities. Review these options to determine which system aligns with your specific infrastructure and monitoring requirements for long-term inventory management.

1. Moray Smart WiFi High Accuracy LPG Tank Level Sensor Ultrasonic Testing Height Less Than 1m Tank Level Indicator Tank Gauge Sensor, Automatic Alarm Indicator for Tuya Mobile APP Smart Home Remote 204R
The Moray Smart WiFi sensor utilizes ultrasonic technology to measure LPG tank levels. Designed for tanks with a height of less than 1 meter, this device provides high-accuracy readings transmitted directly to the Tuya mobile app. By integrating with a smart home ecosystem, the sensor offers automatic alarm indicators, allowing users to track fuel levels remotely. The device is specifically engineered for propane tank monitoring, focusing on simplified wireless communication. Because it relies on ultrasonic testing, the sensor avoids direct contact with the contents of the tank, which may simplify the installation process on compatible LPG vessels.
Best for: Homeowners needing smart WiFi alerts for small propane tanks.
Check on AmazonHighlights
- Ultrasonic non-contact measurement
- Tuya mobile app integration
- Automatic alarm notifications
- Designed for tanks under 1m
Keep in mind
- Compatibility limited to tanks under 1 meter
- Requires active WiFi connection for remote monitoring

2. Smart Oil Gauge - Wi-Fi Heating Oil Tank Gauge with Smart Monitoring - Fuel Tank Gauge Compatible with Alexa - Designed for 275/330/500/550 Gallon Tanks (Vertical/Horizontal)
This WiFi-enabled gauge is purpose-built for monitoring heating oil levels in standard residential tanks. It is compatible with 275, 330, 500, and 550-gallon tanks, supporting both vertical and horizontal configurations. The system provides smart monitoring capabilities and is compatible with Alexa, enabling hands-free status checks. By connecting to a home network, the gauge tracks fuel usage, which can be useful for predicting delivery needs. The device is aimed at users who prioritize smart home ecosystem compatibility and require a dedicated solution for heating oil management. Its design emphasizes easy integration into existing residential oil storage infrastructure.
Best for: Residential heating oil tank monitoring with Alexa voice support.
Check on AmazonHighlights
- Supports common 275-550 gallon tank sizes
- Compatible with vertical and horizontal tanks
- Alexa-enabled smart monitoring
- WiFi connectivity for remote tracking
Keep in mind
- Limited to specific oil tank capacities
- WiFi connectivity required for remote functionality

3. Kus Water Level Tank Gauge 2'' with Red and Yellow Backlights 12V 24V Sensor 380mm Sending Unit 0-190ohm Signal 5-Hole Assembly for Car Vessels Van RV
The Kus tank gauge is a 2-inch analog-style display designed for water or fuel levels in cars, vessels, vans, or RVs. It features red and yellow backlighting for visibility and is compatible with both 12V and 24V electrical systems. The kit includes a 380mm sending unit with a 0-190ohm signal range and a 5-hole assembly for secure mounting. This gauge is intended for direct, local reading rather than cloud-based remote monitoring, making it a robust choice for mobile applications where electrical stability is required. Its construction focuses on durability and standard signal output for reliable level reporting in marine or automotive environments.
Best for: RV, van, or marine water and fuel level monitoring.
Check on AmazonHighlights
- 12V and 24V system compatibility
- Red and yellow backlight options
- Standard 0-190ohm signal output
- Durable 5-hole assembly
Keep in mind
- Lacks remote wireless monitoring features
- Requires manual observation of the physical gauge

4. Ultrasonic Level Gauge Wireless Tank Level Meter 0.5m-15m Water Tank Gauge Indoor/Outdoor Temp. Display 100m Alarm Wall Mount
This wireless ultrasonic level gauge provides a versatile solution for monitoring liquid levels ranging from 0.5m to 15m. It features a remote indoor/outdoor temperature display and a 100m transmission range, making it suitable for water tanks located away from the primary monitoring point. The wall-mounted receiver provides a clear visual interface for checking tank status without needing to visit the tank site. It is designed for those who need a long-range, non-contact measurement tool that works independently of WiFi. The inclusion of temperature data adds an extra layer of environmental monitoring for outdoor installations.
Best for: Monitoring water tank levels up to 100m away from the home.
Check on AmazonHighlights
- 15m maximum depth measurement range
- 100m wireless transmission distance
- Includes indoor/outdoor temperature display
- Wall-mount receiver for easy viewing
Keep in mind
- Not designed for smart phone app connectivity
- Measurement accuracy may vary at the extreme ends of the range

5. MyPropane | Propane Tank Monitor | No Recurring Fees | 4G/5G LTE | Solar Charging | Above Ground & Underground Tanks
The MyPropane monitor is a specialized solution for propane tank tracking that operates over 4G/5G LTE cellular networks. A notable feature is its solar charging capability, which minimizes the need for frequent battery maintenance. It is designed to work with both above-ground and underground tanks, and the manufacturer highlights that there are no recurring fees associated with the service. By using cellular connectivity, this monitor removes the reliance on local WiFi, which is advantageous for tanks located in remote areas or away from the main house. It is a high-performance option for users seeking a low-maintenance, reliable connection for fuel management.
Best for: Remote propane tank monitoring without recurring service fees.
Check on AmazonHighlights
- 4G/5G LTE cellular connectivity
- Integrated solar charging for power
- Compatible with underground and above-ground tanks
- No recurring service fees
Keep in mind
- Requires cellular signal coverage at the tank site
- Higher initial complexity than simple WiFi gauges
How to choose
Connectivity and Remote Monitoring
When selecting a remote tank gauge, consider how the device transmits data. Options like the Moray Smart WiFi LPG sensor and the Smart Oil Gauge utilize local WiFi networks for mobile app integration, allowing for real-time monitoring of fuel levels. For installations where WiFi is unavailable, the MyPropane monitor leverages 4G/5G LTE cellular connectivity with solar charging capabilities. Remote monitoring is essential for tracking levels without physical inspection, particularly for heating oil or propane tanks. Ensure the chosen connectivity method—whether WiFi, cellular, or a wireless indoor/outdoor display—aligns with the signal strength and infrastructure available at your specific tank location to ensure consistent data transmission and timely alerts.
Tank Compatibility and Size
Tank dimensions and orientation are critical factors for gauge compatibility. The Smart Oil Gauge is specifically engineered for standard 275, 330, 500, and 550-gallon tanks in both vertical and horizontal configurations. Conversely, the Kus Water Level Tank Gauge utilizes a 380mm sending unit with a 5-hole assembly, making it suitable for smaller vessels, RVs, or vans. The Ultrasonic Level Gauge offers a broader range for water tanks, measuring levels from 0.5m to 15m. Always verify the specific tank capacity and physical mounting requirements, such as the 2-inch gauge size for the Kus model or the height limitations for the Moray ultrasonic sensor, before finalizing a purchase.
Power Source and Maintenance
Power requirements vary significantly across remote tank gauges, impacting long-term maintenance. Some units are designed for permanent 12V or 24V electrical systems, as seen with the Kus Water Level gauge, which integrates into existing vehicle or vessel power setups. In contrast, the MyPropane monitor features solar charging, reducing the need for manual battery replacements or external power sources for remote tanks. WiFi-enabled sensors often require a stable power connection or battery management, while the Ultrasonic Level Gauge with its wireless display offers flexibility for indoor and outdoor placement. Evaluate your power availability at the tank site to determine whether a hardwired, battery-operated, or solar-powered unit is most appropriate.
Measurement Technology
Gauges use different technologies to determine fluid levels, each suited to specific environments. Ultrasonic sensors, like those found in the Moray and the wireless Ultrasonic Level Gauge, measure the distance to the fluid surface without direct contact, making them ideal for LPG or water. The Kus Water Level gauge uses a physical sending unit with a 0-190ohm signal, which is a common standard for direct-read analog or digital gauges. MyPropane and the Smart Oil Gauge focus on remote monitoring solutions for fuel tanks. Choose the sensor technology that matches your fluid type—propane, heating oil, or water—and ensures the necessary precision for your specific storage application.
Alerting and Display Features
Effective remote gauges provide clear status updates through alarms or displays. The Ultrasonic Level Gauge includes an indoor/outdoor temperature display and a 100m alarm range for immediate notification. Smart home integration is a standout feature for the Moray sensor and the Smart Oil Gauge, both of which support mobile app alerts or Alexa compatibility for convenient status checks. The Kus gauge provides visual feedback via red and yellow backlights, which are useful for direct monitoring on vessels or RVs. Prioritize models that offer the type of notification you prefer, whether it is a physical alarm, a backlit gauge face, or remote push notifications on a smartphone.
Frequently asked questions
Can I use the MyPropane monitor for underground tanks?
Yes, the MyPropane monitor is designed to support both above-ground and underground propane tanks. It utilizes 4G/5G LTE technology for connectivity and features solar charging, which is particularly beneficial for remote or outdoor installations where standard power outlets are unavailable. By eliminating recurring fees and providing cellular data transmission, it serves as a robust solution for monitoring propane levels regardless of the tank's physical placement, provided there is adequate cellular signal coverage in the area.
Does the Smart Oil Gauge work with Alexa?
Yes, the Smart Oil Gauge is compatible with Alexa, allowing users to integrate their heating oil monitoring into their existing smart home ecosystem. Designed for common tank sizes including 275, 330, 500, and 550-gallon models, this WiFi-enabled gauge provides remote monitoring capabilities. By linking the device to your smart home setup, you can receive status updates on your fuel levels, helping to manage heating oil supply more efficiently throughout the season without needing to check the tank manually.
What power source does the Kus Water Level Tank Gauge require?
The Kus Water Level Tank Gauge is designed to operate on either 12V or 24V electrical systems. This makes it a versatile choice for vehicles, vans, RVs, and marine vessels that already utilize these standard electrical voltages. It features a 5-hole assembly for the sending unit and provides a 0-190ohm signal, ensuring compatibility with standard gauge readouts. The unit also includes red and yellow backlighting to assist with visibility in various lighting conditions found in mobile or maritime environments.
How far can the wireless Ultrasonic Level Gauge transmit?
The wireless Ultrasonic Level Gauge offers a transmission range of up to 100 meters for its wireless signal, allowing the indoor display to communicate effectively with the tank sensor located outdoors. It is capable of measuring water tank levels ranging from 0.5 meters to 15 meters in height. Additionally, the unit provides the convenience of an indoor and outdoor temperature display, making it a comprehensive tool for monitoring water supply levels and environmental conditions from the comfort of your home.
Is the Moray LPG sensor suitable for all tank sizes?
The Moray Smart WiFi LPG Tank Level Sensor is designed for tanks with a height of less than 1 meter. It utilizes ultrasonic testing technology to provide high-accuracy measurements of the liquid level within the tank. As a WiFi-connected device, it transmits this data to the Tuya mobile app, providing users with automatic alarm indicators and remote access. Before purchasing, verify that your specific LPG tank height falls within the manufacturer's specified range to ensure the ultrasonic sensor functions accurately.
Bottom line
For users prioritizing smart home integration and remote accessibility, the MyPropane monitor and the Smart Oil Gauge stand out as the strongest performers. The MyPropane unit is a top-tier choice for propane users, featuring 4G/5G LTE and solar charging, which provides superior reliability for both above and underground tanks without recurring fees. Alternatively, the Smart Oil Gauge is the premier selection for heating oil management, offering seamless Alexa compatibility and explicit support for a wide range of common tank sizes. Both units excel at removing the manual labor of tank monitoring, providing reliable, app-based data that ensures homeowners can manage their fuel levels effectively from anywhere, significantly reducing the risk of unexpected supply shortages.
Deciding on the right gauge depends primarily on your tank contents and installation environment. If you are monitoring water levels in a mobile setting like an RV or boat, the Kus Water Level gauge offers a durable, hardwired solution with clear backlit indicators. For outdoor water storage, the Ultrasonic Level Gauge provides the necessary range and wireless convenience. If your primary goal is smart monitoring, evaluate your connectivity—choose WiFi-based sensors like the Moray or Smart Oil Gauge for home environments, or the cellular-enabled MyPropane for off-grid or remote tank locations. Always match the gauge’s technical specifications, such as tank height limits or sending unit signals, to your existing infrastructure to ensure a secure, accurate fit.

