Mini Inline Hidden WiFi Smart Relay 10A AC110-220V

Mini Inline Hidden WiFi Smart Relay 10A AC110-220V

Important Installation Reminder

Only supports 2.4GHz Wi-Fi; 5GHz routers cannot pair. Max 10A resistive load only. Must cut power before wiring, licensed electrician recommended.

Product Overview

This ultra-compact inline WiFi relay module features tiny 8×3.5×2cm size, lightweight 57g, easy to conceal inside standard wall junction boxes without wall cutting. Wide AC110-220V universal voltage, max 10A resistive load, minimal 0.5W standby power. Stable 2.4GHz Wi-Fi connection without extra smart hub, controlled via ET Mars mobile APP. Supports remote on/off, weekly timing, multi-user device sharing, compatible with mainstream smart voice systems. Ideal for lamp DIY upgrade, water heater, greenhouse and rental home intelligent retrofit.

Core Key Advantages

• Ultra Mini Concealed Design 80×35×20mm tiny body fits all standard wall wiring boxes.
• AC110–220 Wide Global Voltage fits US & EU household circuits.
• 10A Max Safe Resistive Load for lights, heaters & small appliances.
• ≤0.5W Low Standby Power cuts long-term idle energy waste.
• 2.4GHz Wi-Fi Direct Connection, no gateway or monthly fees.
• Complete ET Mars APP Functions: remote control, cyclic timer, family share.
• Easy DIY Retrofit, no wall demolition required for old circuits.
• Lightweight 57g structure, simple wiring operation.

Full Technical Specifications

Model SKU	MZ008978
Input Voltage	AC 110V ~ 220V 50/60Hz
Rated Max Current	10A Resistive Only
Standby Power	≤0.5W
Wi-Fi Band	2.4GHz IEEE 802.11 b/g/n (5GHz Unsupported)
Dimension	8 × 3.5 × 2 cm
Net Weight	57g
Controlled APP	ET Mars (iOS & Android)
Mount Type	Inline Concealed Wiring

Applicable Scenarios

• Household: bedroom lamps, electric water heater timed control
• Agriculture: greenhouse heating & watering auto management
• Rental apartment: low-cost intelligent renovation without wall damage
• Office & pet room auxiliary equipment power switch

Safety Operation Instructions

1. Cut off total household power before all wiring work.
2. Professional electrician installation is strongly advised.
3. Do not connect inductive heating equipment over 10A load limit.
4. Indoor dry environment only; damp bathroom use prohibited.
5. Stop using if module generates abnormal heat during operation.
6. Disassembly of internal circuit is forbidden to avoid electric shock.

Package Contents

• 1 × Mini Inline WiFi Relay Module MZ008978
• 1 × Multilingual ET Mars Operation Manual

Frequently Asked Questions

Q1 Does this relay need an extra smart hub?

A1 No gateway required, directly pair with 2.4GHz router via ET Mars APP.

Q2 What’s the maximum supported load?

A1 Max 10A resistive small appliances; heavy heaters are not allowed.

Q3 Can it be hidden inside wall junction boxes?

A1 Yes, ultra-small size fits most standard wiring enclosures.

Q4 Is 5GHz Wi-Fi compatible?

A1 Only 2.4GHz wireless network works normally.