The PZIOT-E02 is a compact, DIN rail mountable consumption meter, capable of accurately measuring the current of a household or inverter output up to 100A.

We especially recommend it for those,

- who do not have a meter with a P1 port
- or who want to measure production phase-by-phase directly at the inverter output.

This way, the PZIOT-E02 measurement can be compared with the feed-in measured on the P1 port, and the real household consumption can be easily calculated from it.

- WiFi hotspot installation – quick setup
- Automatic data sending to the smart meter system
- MQTT integration – no separate broker configuration needed
- Reliable measurement up to 100A

CE Certificate: DOWNLOAD

Wiring
- PZIOT-E02 → according to manufacturer's diagram.
- Power supply, then connect the PZEM meter head to the desired phase (L1/L2/L3). Lead the phase from top down.
- It is recommended to install a separate circuit breaker for the power supply to enable switching the device on/off.

First start / setup
- After powering up, the device creates its own Wi-Fi hotspot named ADA-PZEM.
- Connect to the AP, open the setup interface with the QR code or in a browser at http://192.168.4.1 (setup).
- Enter Wi-Fi, (if needed) MQTT, email/device password.
- If there is an ADA P1 Meter device on the network, do not enable MQTT connection!
- Save → device restarts and connects to your own network (STA mode).
- Then the web interface is accessible at the local IP.

Reset (delete settings)
- The device must be powered on.
- There is a recessed button on the front. Press briefly once to delete settings and restart in AP mode for setup.

Installation → Standalone phase measurement (for meters without P1 port):
Single-phase system:
- Connect the PZEM sensor to the single phase (L1).
- On the PZIOT-E02 web interface, set the selected phase (Select: L1).
- You will see voltage, current, instantaneous power and cumulative energy on the local UI/JSON.

Three-phase system
- Choose one phase to measure (e.g., L1) and connect the PZEM to it.
- (For all three phases separately, 3 units of PZIOT-E02 are needed.)
- On the web interface (http://pziot-e02.local), set the phase Select according to wiring (L1/L2/L3).
- The device then continuously measures and supplies data for the selected phase via the local interface/API.

Installation → with ADA P1 Meter (okosvillanyora.local:8989):
Wiring: the PZIOT should be connected to the inverter phases before any other loads are connected.
Local network: ADA P1 Meter and PZIOT-E02 must be on the same WiFi (otherwise they cannot communicate). 
Phase selection on the PZIOT: set which phase is being measured (L1/L2/L3) in the Phase Select field on the web interface.
Data transfer: the PZIOT-E02 automatically passes phase data to ADA P1 (on local HTTP, at okosvillanyora.local:8989), so no separate subscription is required.
Cloud: ADA P1 imports this "plugins" data and forwards it to the okosvillanyora.hu cloud – thus production/phase-level measurements also appear on the usual dashboard. Consumption of the apartment and inverter production automatically appear in HMKE.APP.

The device can also be used with Tasmota firmware. Follow the guide in the description for installation.

Factory Reset (firmware deletion)
- The device must be off
- There is a recessed button on the front. Hold it down while powering on the device. The system will delete the firmware from the device, indicated by the red LED blinking.
This action is irreversible, permanently erases everything from the device and from then on only Tasmota firmware can be installed on it!