Shelly · Updated October 2026
Shelly 3EM Smart 3-Phase Energy Meter: price & specs
Shelly 3EM Smart 3-Phase Energy Meter. Every price and spec below is linked to its source and dated — no guesses.
Source: us.shelly.com verified ✓ corroborated verify in ledger
The Shelly 3EM Smart 3-Phase Energy Meter is listed at $121.49 on us.shelly.com as of 2026-10-20, #3 cheapest of 8 home energy monitors (median $154); other retailers may be lower. It earns a Bronze Deskmark — 36/100 pay-blind standing, #6 of 7 in class.
Verified Oct 20, 2026 · figures linked to their source in the table below
Cheapest home energy monitors: Shelly EM Gen3 50A Smart Energy Meter — $69.99
Seen at
- us.shelly.com$121.49read
Each figure is what that seller's own page published on the day we read it — not our price of record, and not a live quote. Follow the link for what it costs right now.
Price history
$121.49Is the Shelly 3EM Smart 3-Phase Energy Meter a good buy?
At $121.49, the Shelly 3EM Smart 3-Phase Energy Meter is #3 cheapest of the 8 home energy monitors we track, where the median is $154. On the spec sheet, its branch circuit count of 0 is the lowest of the 8, and its main circuit amps of 120 is below the median of the 7.
Specifications
| Price (US) | $121.49 MSRP from us.shelly.com. Currently out of stock. |
|---|---|
| Brand | Shelly |
| Released | — |
| Monitoring type | ct-clamp |
| Main circuit amps | 120 |
| Branch circuit count | 0 |
| Connectivity protocol | Wi-Fi 802.11 b/g/n |
| Solar net metering | Yes |
| Local api support | Yes |
| Subscription required | No |
| App platforms | iOS, Android, web |
| Accuracy percent | — |
| Installation type | din-rail |
| Smart home integrations | Home Assistant, Alexa, Google Home, MQTT, CoAP, REST API |
| Etl ul certified | — |
Source: us.shelly.com (read 2026-10-20) · corroborated by kb.shelly.cloud (read 2026-06-27).
How we checked
Price $121.49 confirmed on us.shelly.com. Out of stock confirmed. 3-phase, 3x 120A CTs, Wi-Fi, MQTT/CoAP/REST API confirmed via KB. NOT UL listed confirmed (KB explicitly states 'UL Listed option: No'). Accuracy not explicitly stated — left blank. DIN-rail installation confirmed. 2-way consumption measurement supports solar.
Is the Shelly 3EM Smart 3-Phase Energy Meter worth it vs cheaper home energy monitors?
Shelly 3EM Smart 3-Phase Energy Meter against its closest cheaper and pricier home energy monitors on the specs that matter — every value sourced. See all 8 ranked
| Product | Price | Monitoring type | Main circuit amps | Branch circuit count | Connectivity protocol | Solar net metering |
|---|---|---|---|---|---|---|
| Shelly 3EM Smart 3-Phase Energy Meter this | $121.49 | ct-clamp | 120 | 0 | Wi-Fi 802.11 b/g/n | Yes |
| Emporia Vue 3 Home Energy Monitor (Monitor Only) | $99.99 | ct-clamp | 200 | 0 | Wi-Fi 802.11 b/g/n + Ethernet | Yes |
| Eyedro EYEFI-4 Home Energy Monitor | $139 | ct-clamp | 200 | 0 | Wi-Fi 802.11 b/g/n | Yes |
Frequently asked questions
How much does the Shelly 3EM Smart 3-Phase Energy Meter cost?
The Shelly 3EM Smart 3-Phase Energy Meter has a US price of $121.49 (MSRP from us.shelly.com. Currently out of stock.), as of 2026-10-20.
How does the Shelly 3EM Smart 3-Phase Energy Meter compare on price?
At $121.49, the Shelly 3EM Smart 3-Phase Energy Meter is #3 cheapest of the 8 home energy monitors we track, where the median is $154.
Has the Shelly 3EM Smart 3-Phase Energy Meter's price changed?
No — the Shelly 3EM Smart 3-Phase Energy Meter has held at $121.49 since 2026-06-27.
What is the lowest price the Shelly 3EM Smart 3-Phase Energy Meter has been?
The lowest we have recorded for the Shelly 3EM Smart 3-Phase Energy Meter is $97.19 on 2026-07-25.
Is now a good time to buy the Shelly 3EM Smart 3-Phase Energy Meter?
The Shelly 3EM Smart 3-Phase Energy Meter is currently $121.49; the lowest we have recorded is $97.19 (2026-07-25). Every price is dated, so you can judge it against its own history.
What are the Shelly 3EM Smart 3-Phase Energy Meter's key specs?
Shelly 3EM Smart 3-Phase Energy Meter (Shelly): Monitoring type ct-clamp, Main circuit amps 120, Branch circuit count 0, Connectivity protocol Wi-Fi 802.11 b/g/n, Solar net metering. Full sourced spec sheet verified 2026-10-20.
Price of record: $121.49 at us.shelly.com, 2026-10-20. Other retailers may be lower — check the current price:
See Shelly 3EM Smart 3-Phase Energy Meter on Amazon As an Amazon Associate we earn from qualifying purchases.Similar home energy monitors
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