Replacement in-home displays, standalone consumption monitors and companion apps help you get real value from your smart meter data, even if the original display has stopped working.
Why smart meter accessories matter
A smart meter only saves money if you actually see and act on the data. Accessories that keep your usage visible and easy to understand turn a passive meter into a genuine money-saving tool.
Recommended products
Filter our reviews to match your home and priorities.
Shelly
Shelly Pro 3EM (120A) - 3-Phase Smart Energy Meter
A professional-grade, DIN-rail mountable energy monitor capable of tracking three-phase systems or multiple single-phase circuits with high accuracy.
Professional 3-phase monitoring with LAN and Wi-Fi connectivity for data-heavy energy management.
Read Review
DEWIN
WiFi Smart Energy Meter & Circuit Breaker
A DIN-rail mounted smart monitoring tool that combines real-time energy tracking with automated circuit protection. Ideal for tech-savvy UK homeowners looking to monitor specific high-drain circuits at the consumer unit level.
Granular circuit-level energy monitoring and remote isolation via WiFi.
Read Review
TONGOU
TONGOU DIN Rail Smart Switch with Energy Monitoring
A high-capacity DIN rail switch designed for distribution boards, offering remote control and real-time energy tracking via Wi-Fi.
Centralised smart control and energy monitoring for high-load domestic circuits.
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Chatthen
Smart Meter Single-Phase AC 63A 80-400V WiFi Energy Meter
A DIN rail-mounted energy monitor combined with a circuit breaker, offering real-time voltage and consumption tracking via the Smart Life app.
Integrated circuit protection with remote energy monitoring capabilities.
Read ReviewBuying advice
Check meter compatibility
Confirm accessories work with SMETS1 or SMETS2 meters and your supplier's network.
Consider a standalone monitor
If your in-home display has failed, a clip-on monitor restores real-time visibility.
Use the data
The savings come from acting on what you see — set targets and review weekly.
Frequently asked questions
Do smart meter accessories actually save money on energy bills?
They can, when they solve a real problem in your home. Our reviews focus on the products that make a measurable difference rather than novelty gadgets, and each one explains when the savings justify the cost — and when they don't.
Does PowerGuardian sell smart meter accessories?
No. PowerGuardian is an independent UK energy information service. Some links are Amazon affiliate links and we may earn a small commission at no extra cost to you, but our reviews and ratings always stay advice-led and independent.
How does PowerGuardian rate smart meter accessories?
Every review is scored across six dimensions — Energy Saving, Ease of Use, Value, Features, Installation and Reliability — which combine into an overall PowerGuardian Rating out of 5. See our methodology for full detail.