Best Electrical Relays Under $100 (2026)
We ranked relays under $100 by a value score that weights specifications (channel count, metering, ratings), communication features, certifications, and user-focused utility
The Verdict
- Best Overall: Shelly 2PM Gen3 Wi-Fi two-channel smart relay switch — Best for two-channel smart control: two relays with Wi‑Fi and integrated power metering for compact automation
- Best Value: Shelly Plus 1PM UL | WiFi smart relay with power metering — Best for UL‑certified Wi‑Fi deployments: compact smart relay with power metering and broad home automation support
This roundup surfaces durable electrical relays and smart relay modules priced under $100, prioritized by value score for tools and industrial use. Selections favor devices offering clear specifications such as channel count, power metering, communication protocol, and UL certification to help professionals and hobbyists compare options quickly
Top Picks
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1
Best Overall Shelly 2PM Gen3 Wi-Fi two-channel smart relay switch
Best for two-channel smart control: two relays with Wi‑Fi and integrated power metering for compact automation
Wi-Fi operated two-channel smart relay with power metering for independent control of devices. Monitor energy usage and manage bi-directional motors and circuits. Customers report easy setup and quality
- power metering
- Wi-Fi remote control
- independent channel operation
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2
Best Value Shelly Plus 1PM UL | WiFi smart relay with power metering
Best for UL‑certified Wi‑Fi deployments: compact smart relay with power metering and broad home automation support
Wi‑Fi operated smart switch relay with power metering and Bluetooth gateway. Monitor consumption and remotely control appliances; compatible with common smart home platforms. Customers praise easy setup and solid build quality
- Power metering per channel
- Remote control of appliances
- UL certified and Wi‑Fi with Bluetooth gateway
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3
Shelly Plus 1PM UL Wi-Fi smart relay switch with power metering
Best for Wi‑Fi plus gateway use: single-channel relay offering power metering and optional Bluetooth gateway integration
Wi-Fi operated smart switch relay with power metering and Bluetooth gateway. Helps monitor consumption and control appliances remotely; integrates with smart home systems and supports local automation
- power metering per channel
- BLE gateway and Wi-Fi control
- remote control of appliances
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4
Shelly Plus 1PM UL Wi-Fi Smart Relay Switch with Power Metering
Best for flexible smart-switch installs: single-channel Wi‑Fi relay with built-in power metering and standard control features
Wi-Fi operated smart switch relay with power metering and 1 channel. Monitors consumption and controls appliances, with Bluetooth gateway functionality. Customers note easy setup and good integration options
- power metering
- Wi-Fi + Bluetooth gateway
- UL certified 1-channel relay
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5
Miniature Power Relay 24V HF41F/24-ZS, 1NO 1NC, 6A SPDT w/ LED, 41F-1Z-C2 socket
Best for DIN/socketed control: miniature 24V SPDT power relay with LED indicator suited to panel and control-board use
Subminiature power relay with 24V coil, 6A 250VAC/30VDC contact rating, and SPDT (1NO 1NC). Includes LED indicator and socket base. Certifications support UL/CSA/CE/VDE compliance
- LED indication on relay
- UL/CSA/CE/VDE certifications
- thin 5mm width
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6
Shelly Wave 2PM US LR 2-Channel Z-Wave Smart Relay
Best for Z‑Wave networks: long‑range two-channel relay with power metering designed for compatible automation systems
Z-Wave Long Range smart switch relay with 2 channels and power metering. Monitors consumption and controls appliances, with extended range for large properties. Requires a Z-Wave gateway for setup
- 2-channel switch relay
- power metering
- long-range up to 1+ mile