🔌 BSD59 Smart Plug with Energy Monitoring
A 16A smart plug in the new South African standard form factor — slim, compact (75 × 36 × 30 mm), and ready for the future. Real-time energy monitoring shows you exactly what each appliance costs to run. Available in three firmware variants: Zigbee 3.0 for mesh networks, ESPHome for fully local Home Assistant control, and Tasmota for open-source MQTT flexibility.
Choose Your Firmware
⚡ Key Features
- 16A / 3,520W Max Load — handle high-draw appliances like heaters, kettles, and small geysers at South Africa's 220V mains
- Real-Time Energy Monitoring — track watts, amps, voltage, and cumulative kWh per appliance to understand your electricity costs
- New SA Standard Plug Design — slim rectangular form factor (75 × 36 × 30 mm) that fits modern South African wall sockets without blocking adjacent outlets
- ESP32 Chipset (ESPHome & Tasmota) — powerful dual-core processor with WiFi, pre-flashed with your chosen firmware, ready to pair
- Zigbee 3.0 Router (Zigbee variant) — strengthens your Zigbee mesh network while monitoring energy usage, requires a Zigbee hub/coordinator
- 100% Local Control (ESPHome & Tasmota) — no cloud dependency, no internet required, your data stays on your network
- Home Assistant Native — ESPHome auto-discovers in HA; Tasmota integrates via MQTT; Zigbee works through ZHA or Zigbee2MQTT
- OTA Firmware Updates — update ESPHome or Tasmota firmware over-the-air without opening the plug
- Physical Button — manual on/off toggle directly on the plug, works even without network connectivity
- LED Status Indicator — quick visual confirmation of power state and network connection
🔄 Firmware Comparison
| Feature | Zigbee | ESPHome | Tasmota |
| Protocol | Zigbee 3.0 | WiFi 2.4 GHz | WiFi 2.4 GHz |
| Hub Required | Yes (Zigbee coordinator) | No | No |
| Cloud Dependency | None (local mesh) | None (100% local) | None (100% local) |
| Home Assistant | ZHA / Zigbee2MQTT | Native (auto-discovery) | MQTT / Native |
| Mesh Networking | ✅ Acts as router | — | — |
| Web Interface | — | — | ✅ Built-in web UI |
| MQTT Support | Via Zigbee2MQTT | Via HA integration | ✅ Native MQTT |
| OTA Updates | Via coordinator | ✅ Over WiFi | ✅ Over WiFi |
| Chipset | Zigbee SoC | ESP32 | ESP32 |
| Energy Monitoring | ✅ | ✅ | ✅ |
💡 What Can You Monitor & Control?
Lights & Lamps
See exactly how much your lights cost to run. Automate on/off schedules and track energy usage per fixture.
Heaters & Appliances
Monitor heater energy consumption in real time. Set automations to cut power after a set period or when usage exceeds a threshold.
Fans & Extractors
Automate bathroom extractors or fans on a timer. Check how much each one draws and optimise your usage.
Home Office
Plug in your desk setup and monitor total consumption. Schedule power-off to eliminate phantom draw overnight.
🔗 Zigbee Variant — Hub Required
The Zigbee BSD59 requires a Zigbee coordinator or hub to function. Compatible with any Zigbee 3.0 coordinator including SONOFF ZBDongle-E, Dongle Max, Dongle Lite MG21, ZB Bridge-P, and third-party hubs. The plug also acts as a Zigbee router, extending your mesh network's range and reliability.
🔌 Also Available — Rounded ZA Plug
Prefer the traditional rounded South African plug style? The same smart plug hardware is available in the classic form factor:
Zigbee Smart Plug (Rounded SA)
Same Zigbee 3.0 smart plug with energy monitoring in the classic rounded SA 3-pin design. 56 × 56 × 40 mm.
View Product →ESPHome Smart Plug (Rounded SA)
100% local ESPHome smart plug with energy monitoring in the rounded SA form factor. Pre-flashed ESP32.
View Product →Tasmota Smart Plug (Rounded SA)
Open-source Tasmota smart plug with energy monitoring in the rounded SA design. Pre-flashed ESP32.
View Product →🏠 Complete Your Setup
SONOFF ZBDongle-E
USB Zigbee 3.0 coordinator for Home Assistant. Pair the Zigbee BSD59 plug directly and manage your entire mesh network.
View Product →SONOFF Dongle Max
Ethernet/PoE Zigbee coordinator with external antenna. For larger homes or professional installs requiring maximum range.
View Product →SONOFF ZB Bridge-P
Zigbee-to-WiFi gateway for the eWeLink ecosystem. If you prefer cloud + app control for your Zigbee devices.
View Product →SONOFF NSPanel Pro 120
4.7″ touchscreen with built-in Zigbee hub. Control and automate your smart plugs alongside switches and sensors.
View Product →📋 Technical Specifications
| Product | BSD59 Smart Plug (Energy Monitoring) |
| Form Factor | New SA Standard plug (BSD59 / Type M compact) |
| Dimensions | 75 × 36 × 30 mm |
| Weight | ~78 g |
| Input Voltage | 100-240V AC 50/60Hz (SA 220-240V compatible) |
| Max Load | 16A / 3,520W @ 220V |
| Protocol (Zigbee) | Zigbee 3.0 — acts as router / mesh extender |
| Protocol (ESPHome / Tasmota) | WiFi IEEE 802.11 b/g/n 2.4 GHz |
| Chipset (WiFi variants) | ESP32 |
| Energy Monitoring | Real-time watts, amps, voltage & cumulative kWh |
| Physical Button | Yes — manual on/off toggle |
| LED Indicator | Yes — power/network status |
| Cloud Dependency | None — all variants run 100% local |
| Home Assistant | ZHA · Zigbee2MQTT · ESPHome native · Tasmota MQTT |
| OTA Updates | Yes (ESPHome & Tasmota over WiFi) |
| Certifications | CE · FCC |
| Warranty | 1 Year Manufacturer Warranty |
❓ Frequently Asked Questions
What's the difference between BSD59 and the rounded SA plug?
Which firmware should I choose?
Does the Zigbee variant need a hub?
Do the ESPHome / Tasmota variants need a hub?
Can I flash different firmware later?
How accurate is the energy monitoring?
Can I use this for a geyser?
Does it work during load shedding?
Will it block the socket next to it?
Are you the only SA supplier of pre-flashed plugs?
🤝 Need Help? We're Here for You!
Visit Us
8 Wildebraam Street
Weltevreden Park, Roodepoort
Gauteng, 1709
Monitor. Control. Save.
Know exactly what every appliance costs — pre-flashed and ready to plug in.