Did you try searching here? I have many times pointed users towards https://www.jaycar.com.au/9v-ac-1-amp-plugpack/p/MP3027 also https://www.jaycar.co.nz/9v-ac-1-amp-plugpack/p/MP3027
Voltage calibration coefficient - 300.0 (No-load = 10.4 V) Phase error is reported to be 0.92° at 230V/50Hz (per Lemaire).
