Shelly Wave PM Mini US Review (2026): A Spec-Based Look
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This shelly wave pm mini us review covers the Shelly Wave PM Mini US LR, a compact smart power meter designed for precise energy monitoring. It measures 1.35 inches wide and 1.11 inches tall, allowing it to fit into tight electrical boxes. The device is a 1-channel 16 A power meter only, with no relay built in. It communicates via Z-Wave Long Range, supporting networks up to 4,000 devices. You need a separate gateway to configure it. This unit helps you track appliance consumption and detect energy waste without adding bulk to your setup.
What stands out
- Compact dimensions of 1.35 x 1.11 x 0.63 inches for tight spaces
- Z-Wave Long Range support with distances up to 1.5 miles
- Scalable network capacity for up to 4,000 devices
- 16 A single-channel power metering with no relay
Who it fits
Good fit for
You should choose this device if you already have a Z-Wave gateway and need detailed energy data for specific circuits. It suits users who want to monitor individual appliance usage without adding bulky hardware. The small form factor is ideal for retrofitting into existing electrical boxes where space is limited. If you are building a large-scale Z-Wave network, the support for 4,000 devices makes this a reliable choice for comprehensive home monitoring.
Who should skip it
Skip this product if you need a smart switch or relay to control power on and off, as this unit is a power meter only. You must also own a compatible Z-Wave gateway, which is not included. If you prefer Wi-Fi devices that connect directly to your router, this Z-Wave Long Range device will not fit your setup. Additionally, if you want a plug-and-play solution without configuring a separate hub, this meter requires more initial setup than direct-connect alternatives.
Verdict: The Shelly Wave PM Mini US LR is a specialized tool for detailed energy monitoring in existing Z-Wave networks. It is best for users who need compact, high-capacity power tracking rather than control capabilities.
Key specs for Shelly Wave PM Mini
1 Channel 16 A
This device monitors one circuit with a maximum load of 16 amps. It measures energy usage for a single appliance or branch circuit. You cannot control the power on or off with this unit, as it lacks a relay. It is designed strictly for monitoring. Compare this to smart plugs that offer both control and metering. This spec suits users who already have automation switches and need detailed data.
Z-Wave Long Range (ZWLR)
The device uses Z-Wave Long Range technology, which supports communication distances up to 1.5 miles at full power. It also supports scalable networks with up to 4,000 devices. This exceeds the 232-device limit of older Z-Wave versions. You get wider coverage and more reliable connections in larger homes. This is distinct from standard Z-Wave Plus, which operates on 908.4MHz, while ZWLR works on 912MHz.
1.35 inches wide
The unit is 1.35 inches wide, making it one of the smallest power meters available. This compact size allows it to fit into tight electrical boxes and spaces. You can install it in locations where larger devices would not fit. This is useful for retrofitting existing setups without requiring extensive modifications. Compare this width to bulkier smart plugs or meters that may not fit in confined junction boxes.
1.11 inches tall
The height is 1.11 inches, contributing to its low profile. This dimension ensures it sits flat inside standard electrical enclosures. You avoid protruding components that might interfere with other wiring or components. This slim design helps maintain a clean installation in tight spaces. When shopping for home controls, check this height to ensure compatibility with your specific electrical box depth and width constraints.
Compact Design and Physical Build
According to the listing, the Shelly Wave PM Mini US LR is built for tight spaces. Its dimensions are 1.35 inches wide, 1.11 inches tall, and 0.63 inches long. This small footprint allows it to fit into standard electrical boxes where larger devices would not. The compact size is its primary design feature, enabling installation in areas with limited room.
The device is a power meter only. It does not include a relay built in. This means you cannot control the power on or off with this unit. It is designed solely for monitoring energy usage. You must pair it with a gateway for configuration. The listing notes that a smart hub is required but not included. This setup ensures the device focuses on data collection rather than direct load control.
The listing describes a retrofit design. This suggests it is meant to replace existing components in tight spaces. The materials and finish are not specified in the provided data. We do not know the exact casing composition or color options. The focus remains on its physical size and its role as a monitoring tool. Its small form factor is the key practical detail for installation planning.
Setup and Everyday Use Guide
Setting up this device requires a Z-Wave gateway. The listing states that a smart hub is not included and is mandatory for configuration. You must pair the meter with your existing Z-Wave controller. The unit supports Z-Wave Long Range, offering communication distances up to 1.5 miles at full power. It also works on 912MHz and 908.4MHz frequencies. This compatibility allows it to join scalable networks with up to 4,000 devices. This capacity far exceeds the 232-device limit of older Z-Wave versions. Daily use centers on monitoring energy consumption. The meter tracks power usage for a single circuit. You can view this data from anywhere using your gateway’s interface. The system detects power spikes instantly. These spikes often indicate appliance faults or hidden energy waste. You can use the collected data to optimize your home’s energy efficiency. For example, you might identify lights left on or idle appliances. You can then create smart scenes to automatically turn off devices during high usage periods or at night. This automation helps prevent unnecessary energy waste. The compact design ensures it fits into tight electrical boxes without disrupting your setup. Shelly provides professional support for this device. The product also includes a three-year device warranty. This combination of precise monitoring and reliable connectivity makes it suitable for users who want detailed insights into their appliance power consumption.
Before You Buy This Meter
You need a Z-Wave gateway to use this device. The listing states a smart hub is not included. You must pair the meter with your existing Z-Wave controller. The unit supports Z-Wave Long Range, offering extended range. Check your hub’s compatibility. It works on 912MHz and 908.4MHz frequencies. This ensures reliable communication. You cannot control power with this unit. It only monitors energy usage. Use its data with smart scenes. Automate devices during spikes or at night. This saves energy and protects appliances. It fits alongside other smart home controls. It provides precise energy monitoring. Track appliance power consumption from anywhere. Stop hidden energy waste. Appliance faults can drive up energy use. Detect spikes instantly. Optimize energy use with smart metering. Identify unnecessary energy use. Lights left on or idle appliances. This compact design fits into tight spaces. It is the world's smallest Z-Wave power meter. Retrofit design ensures seamless integration. Shelly provides professional support. This device suits those who want detailed energy insights. It does not replace your thermostat. It complements your smart home ecosystem.
Check before you buy
- Verify your Z-Wave gateway supports Long Range.
- Confirm 912MHz or 908.4MHz frequency compatibility.
- Check if you need a smart hub.
- Ensure electrical box fits 1.35 by 1.11 inches.
- Plan for 16 amp maximum load per circuit.
The product at a glance
Shelly Wave PM Mini US LR
Best for: long-range single-circuit electrical load monitoring
- Connectivity
- Z-Wave, Z-Wave Long Range
- Smart Home Compatibility
- Alexa, Google Home, Home Assistant
- Dimensions
- 0.63 × 1.35 × 1.11 inches
View on Amazon: Shelly Wave PM Mini US LR Affiliate link
The Shelly Wave PM Mini US is a 1-channel, 16 A smart energy monitor. Measuring 1.35 by 1.11 by 0.63 inches, it fits inside compact electrical boxes. It operates on Z-Wave Long Range at 912 MHz and Z-Wave Plus at 908.4 MHz. You track appliance consumption across distances up to 1.5 miles. It suits you if you want monitoring without load switching.
Pros
- Handles loads up to 16 A on a single channel
- Transmits up to 1.5 miles on Z-Wave Long Range
- Compact casing measures 1.35 by 1.11 by 0.63 inches
- Includes a 3-year warranty
Cons
- Contains no internal relay for switching power
- Requires a separate Z-Wave gateway for configuration
- Monitors only 1 channel
Good fit if
- You want to track appliance power usage up to 16 A.
- You already have a Z-Wave hub for configuration.
- You need a power meter for cramped electrical boxes.
Skip if
- You need remote switching to turn connected loads on or off.
- You do not own a compatible Z-Wave gateway.
Verdict: Shelly Wave PM Mini US Power Meter delivers dedicated 16 A energy monitoring via Z-Wave Long Range for users who already operate a compatible hub. It fits installations requiring consumption tracking in tight spaces without load switching.
Specifications side by side
| Spec | Shelly Wave PM Mini US LR |
|---|---|
| Connectivity | Z-Wave, Z-Wave Long Range |
| Smart Home Compatibility | Alexa, Google Home, Home Assistant |
| Dimensions | 0.63 × 1.35 × 1.11 inches |
| Model | 3800238071899 |
Frequently asked questions
Does the Shelly Wave PM Mini US LR control power?
No, it does not switch power. This unit is designed strictly for monitoring energy usage. It measures data for a single 16 A circuit. You cannot turn appliances on or off with this device. It provides detailed energy metrics without handling power switching duties.
What wireless technology does this meter use?
It uses Z-Wave Long Range technology. You must pair the meter with an existing Z-Wave controller to function. The listing states that a smart hub is not included. You need to ensure your gateway supports Z-Wave Long Range for proper configuration and extended range.
Is the Shelly Wave PM Mini US LR compatible with all hubs?
It works only with Z-Wave hubs. You cannot use it with Wi-Fi or Matter-only systems. The device requires a Z-Wave gateway for setup. Check your current hub’s specifications to confirm it supports Z-Wave Long Range before purchasing this monitoring tool.
How many circuits can this device monitor?
It monitors a single circuit. The device is rated for a maximum load of 16 amps. It is intended for one appliance or branch circuit. You cannot expand its capacity to track multiple lines simultaneously with this specific unit.
What are the physical dimensions of the Shelly Wave PM Mini?
The unit measures 1.35 inches wide, 1.11 inches tall, and 0.63 inches long. Its compact footprint allows it to fit into tight electrical boxes. This small size is designed for installation in standard electrical enclosures without taking up excessive space.
Do I need to buy a hub to use this meter?
Yes, you need a Z-Wave hub. The listing states that a smart hub is not included. You must pair the meter with your existing Z-Wave controller to configure it. The device cannot operate independently without this gateway connection.
What is the main purpose of the Shelly Wave PM Mini US LR?
It is a compact monitoring tool for energy data. It provides detailed usage metrics for a single 16 A circuit. It is best for users who already have a Z-Wave hub and need precise tracking. It does not handle power switching.