ESP-BAT32 Evaluation Board Espressif Systems ESP-BAT32 Evaluation Board is a signal board designed to evaluate ESP32 products. This signal board effectively tests the RF performance of mass-produced Wi-Fi products. The ESP-BAT32 signal board can be used as a standard device for communication with the Device Under Test (DUT) by analyzing the communication data. This RF testing board performs stably in an operating temperature of -25°C to +75°C. The ESP-BAT32 signal board measures 100mm x 60mm x 25mm in dimension.