HC-42 6pin Bluetooth 5.0BLE Serial Port Module Mornsun LM35-20B24 AC/DC 35W Enclosed Switching Power Supply Type Dual LED Digital Voltmeter

Type Dual LED Digital Voltmeter & Ammeter Module Voltage Measurement Range DC 0-100V Voltage Display Resolution 0

it is not recommended for swimming or snorkeling as 5ATM protection is insufficient for prolonged water immersion or pressure from water jets

4GHz frequency band RF Frequency 433

designed with child-safe materials and smooth edges

HC-42 6pin Bluetooth 5.0BLE Serial Port Module Mornsun LM35-20B24 AC/DC 35W Enclosed Switching Power Supply Type Dual LED Digital VoltmeterHC 42 6pin Bluetooth 5. 0BLE Serial Port Module The HC 42 is a compact 6 pin Bluetooth 5. 0 BLE serial port module designed for wireless communication between microcontrollers and host devices with minimal power consumption. Professional embedded systems engineers, IoT developers, and industrial automation technicians use this module to eliminate wired serial connections while maintaining reliable data transmission over distances up to 100 meters.