SRS Series

SRS Series — Smart Relay Switches with Built-in Power Metering

Compact puck-style smart relay switches with integrated per-channel power monitoring. Designed for flush-mounted wall boxes and ceiling installations — no changes to existing switch panels required.

Product Variants

SRS products are defined across two dimensions:

1. Channel Configuration

SRS01 1PM

SRS01 2PM

Relay Channels

1 × 16A

2 × 10A (max 16A total)

Power Monitoring

1 channel

2 channels independently

Rated Voltage

110–240 VAC, 50/60 Hz

Type of Switching

Relay, Micro gap (μ)

Dimension

38 × 42 × 16 mm

Active Energy Accuracy

±2%

2. Connectivity

Wireless — select one variant per order:

Variant

Communication

Archetecture

API Style

Typical Users

Tuya Wi-Fi (*TW)

Wi-Fi

BK7238 SoC (Tuya Firmware, Slave) + Metering MCU (Bituo Firmware, Master)

MQTT(Tuya Proprietary)

Tuya ecosystem, IoT beginners

Std. Zigbee (*TZ-U01)

Zigbee 3.0

EFR32MG21 SoC (Bituo Firmware, Master) + Metering MCU (Bituo Firmware, Slave)

Standard Zigbee 3.0 Clusters

System Integrators, DIYers

ℹ️ Open Wi-Fi and Tuya Zigbee versions are not currently offered for SRS — no suitable modules of sufficient compact size is available for this form factor at this time.