4 Pack 12V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger (12V) auspowers_batchsix enhanced durability and maximum portability

enhanced durability and maximum portability

Weighing Sensor Transmitter Tension Sensor Transducer Weight Transmitter Amplifie Voltage Current Converter Sensor Amplifier Load Cell Amplifier Linear Differential Input Voltage

and fast pairing with smart phones and tablets

so you’ll never be without a working phone

4 Pack 12V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger (12V) auspowers_batchsix enhanced durability and maximum portability4 Pack 12V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger (12V) Module description: 1. The module Operating voltage 12V; 2. Fault tolerant design, even if the control line is broken, the relay will not operate; 3. The power indicator (green), the relay status indicator (red); 4. Module size: 50mm26mm18. 5mm (LWH). Interface: InputVCC: Relay power supply +GND: Relay power supply IN: Signal trigger input (High or Low