Best Gas Sub Meters for Accurate Usage Tracking
When you need to monitor gas usage for cost allocation, safety, or efficiency, a dedicated gas submeter is essential. This guide highlights five reliable options, explains who each product is best for, and offers practical buying tips. Whether you’re a landlord, facilities manager, or DIY enthusiast, these submeters help you track natural gas, propane, and other non-corrosive gases with clear readouts and durable construction.
| Product | Best For | Key Benefit |
|---|---|---|
| Roastove 3/4″ Gas Submeter | Property owners tracking natural gas or propane usage | Pulse output with cubic feet readout |
| Digital Electric Sub Meters by Aituzero | Multi-tenant buildings and RVs needing sub-metering | Versatile, sub-meter capable, includes Modbus and pulse |
| GASFLEX Gas Meter G4 | Compact, space-limited installations | Ultra-compact form factor for tight spaces |
| EKM Metering 3/4″ Gas Meter | Reliable pulsed readouts for natural gas | Simple 1 pulse per 1 cu ft readout |
| Solimeta 3/4″ Gas Meter | Durable submeter with broad gas compatibility | Long-lasting diaphragm and heavy-duty housing |
Best Overall: Roastove 3/4″ Gas Submeter
The Roastove gas submeter is designed for non-corrosive gases such as natural gas and gaseous propane. It features a durable die-cast aluminum case and a PF resin valve system, with a diaphragm tested for longevity. The unit offers a pulse output and a cubic feet readout, making it suitable for accurate, tenant-level billing or usage monitoring in small commercial or residential settings. Best for property owners and facility managers who prioritize a rugged, purpose-built gas submeter with straightforward readouts.
Why this is chosen: The combination of robust construction and a simple pulse-to-readout interface supports reliable, long-term monitoring in environments where gas flow may vary seasonally. Caution: Ensure compatibility with your gas line configuration and verify that the unit’s pulse output wiring matches your monitoring system.
Best for Multi-Tenant or RV Setups: Aituzero Digital Sub Meter
This digital electric submeter is designed for quick installation in standard 2S sockets and supports sub-metering across tenants, workshops, and RV sites. Although marketed for electric use, the device demonstrates the same sub-metering principles—tracking power or gas flow with clear LCD readouts and easy wiring. Best for landlords and DIY installers who want flexible, scalable metering for multiple circuits or spaces, with potential for Modbus integration and data retention during outages. Caution: Verify gas compatibility for your specific installation needs, as the listing emphasizes electrical use and broader sub-metering capabilities.
Best Space-Saving: GASFLEX Gas Meter G4
The G4 gas meter focuses on a compact footprint, making it well-suited for installations where space is at a premium. It provides a basic but reliable gas metering solution with a small form factor that fits tighter enclosures or meter boxes. Best for installations where space constraints limit larger devices. Caution: The compact design may limit the available features compared with larger submeters, so confirm whether it supports your required readout precision and data integration needs.
Best Readout Quality: EKM Metering 3/4″ Gas Meter
The EKM Metering option emphasizes a clear pulse output with a 1 pulse per 1 cubic foot readout, designed for reliable natural gas metering. Its simple binary pulse signal supports straightforward integration into existing monitoring setups. Best for users who need a dependable, easy-to-interpret gas readout for billing or usage tracking. Caution: Check compatibility with your specific gas line diameter and ensure your data collection system can translate the pulse into usable metrics.
Best Durable Build: Solimeta 3/4″ Gas Meter
The Solimeta meter is built with a wide gas compatibility and a heavy-duty ADC12 aluminum housing, paired with PF resin valve parts. Its diaphragm has undergone rigorous testing for durability, ensuring stable long-term performance. Best for installations requiring a rugged, all-purpose gas submeter that can handle various non-corrosive gases and maintain accuracy over time. Caution: Long-term accuracy depends on proper installation and calibration within your gas system.
Buying Guide: Key Considerations For Gas Submeters
- Gas compatibility: Confirm the submeter supports natural gas, propane, or your specific gas type. Look for a specified gas range in the features or datasheet.
- Readout type: Pulse outputs and direct readouts (cubic feet, BTU, or other units) affect how you integrate data with billing or monitoring software.
- Installation space: Measure enclosure size and inlet/outlet thread sizes (e.g., 3/4″ NPT) to ensure a proper fit in your gas line.
- Durability: Consider housing material (die-cast aluminum is common) and diaphragm longevity for reliable operation in gas environments.
- Data integration: For multi-tenant or commercial setups, consider models with Modbus, EEPROM retention, or cloud connectivity for centralized billing or monitoring.
- Maintenance: Assess the availability of calibration options and the ease of replacing diaphragms or seals to maintain accuracy over time.
- Safety and compliance: Ensure the device meets local safety standards and is appropriate for gas installations, including proper sealing and leak prevention in your setup.
Frequently Asked Questions
- What is a gas submeter used for?
Gas submeters measure individual usage for each tenant, appliance, or circuit, enabling fair cost allocation and better energy management without replacing the building’s main meter.
- Can I install a gas submeter myself?
Installation typically requires plumbing work and adherence to local codes. If unsure, hire a licensed professional to ensure proper sealing and safety.
- What does “pulse output” mean?
A pulse output provides a digital signal proportional to gas flow, which can be read by a data logger or building management system for automated tracking.
- Which readout units are common for gas submeters?
Common units include cubic feet and cubic meters, with some meters offering BTU or m3 readouts depending on the model and configuration.
- Is a compact meter better for small spaces?
Yes, compact meters save space in restricted enclosures, but ensure they still meet your required flow range and integration needs.
- What maintenance is typical for gas submeters?
Periodic calibration, diaphragm inspection, and valve part replacement are common to maintain accuracy and reliability over time.