# Eyedro EYEFI-4 Home Energy Monitor: specs and price

**Price (US):** $139 (MSRP from eyedro.com.), as of 2026-06-27. Among the 8 home energy monitors we track it is #4 cheapest of 8; category median $169.
**Brand:** Eyedro
**Deskmark:** Silver Deskmark — pay-blind category standing 71/100, #3 of 7 in class (independent, computed from sourced data, never for sale).
**Price tracked since:** June 2026

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $139 |
| Brand | Eyedro |
| Monitoring type | ct-clamp |
| Main circuit amps | 200 |
| 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 | web (MyEyedro) |
| Accuracy percent | 1 |
| Installation type | external-ct (no panel wiring) |
| Smart home integrations | — |
| Etl ul certified | UL 61010-1, CSA C22.2#61010-1 |

## Where it stands

At $139, the Eyedro EYEFI-4 Home Energy Monitor is #4 cheapest of the 8 home energy monitors we track, where the median is $169. On the spec sheet, its branch circuit count of 0 is the lowest of the 8, its accuracy percent of 1 is the lowest of the 6, and its main circuit amps of 200 is at the median of the 7.

## Frequently asked questions

**How much does the Eyedro EYEFI-4 Home Energy Monitor cost?**

The Eyedro EYEFI-4 Home Energy Monitor has a US price of $139 (MSRP from eyedro.com.), as of 2026-06-27.

**How does the Eyedro EYEFI-4 Home Energy Monitor compare on price?**

At $139, the Eyedro EYEFI-4 Home Energy Monitor is #4 cheapest of the 8 home energy monitors we track, where the median is $169.

**What are the Eyedro EYEFI-4 Home Energy Monitor's key specs?**

Eyedro EYEFI-4 Home Energy Monitor (Eyedro): monitoringType ct-clamp, mainCircuitAmps 200, branchCircuitCount 0, connectivityProtocol Wi-Fi 802.11 b/g/n, solarNetMetering Yes. Full sourced spec sheet verified 2026-06-27.

Source: https://eyedro.com/product/eyefi-4/ (eyedro.com, accessed 2026-06-27)
Corroboration: https://www.amazon.com/Eyedro-Home-Solar-Energy-Monitor/dp/B07LFNBHXD (accessed 2026-06-27)
Canonical: https://frontdeskreview.com/product/home-energy-monitors/eyedro-home-energy-monitor/
Cite: Per The Front Desk Review, the Eyedro EYEFI-4 Home Energy Monitor price of record was $139 as of 2026-06-27 — https://frontdeskreview.com/product/home-energy-monitors/eyedro-home-energy-monitor/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl