DZS Elec 5V 4 Channel Relay Optocoupler Isolation Module Red Board 3-5V High and 0-1.5V Low Level Triggered Load AC 0-250V / DC 0-30V 10A SCM IO Control auspowers_batchsix Two 4" x 6" Discount

Two 4" x 6" Discount TENS self adhesive dual electrode pads

FM Radio(87-108MHz)

Compatible for PC and Laptop and work well with multiple common software

Product Name :Single linear rotary taper poteniometer

DZS Elec 5V 4 Channel Relay Optocoupler Isolation Module Red Board 3-5V High and 0-1.5V Low Level Triggered Load AC 0-250V / DC 0-30V 10A SCM IO Control auspowers_batchsix Two 4" x 6" DiscountDZS Elec 5V 4 Channel Relay Optocoupler Isolation Module Red Board 3 5V High and 0 1. 5V Low Level Triggered Load AC 0 250V DC 0 30V 10A SCM IO Control Feature: Module Size: 73x50x18. 5mm (LxWxH) 4 Fixed Holes for Screw: Diameter 3. 1mm Work Voltage: 5V Quiescent Current: 5mA Max Current: 190mA Trigger Current: 3 5mA Low Level Trigger Current: 0 1. 5V High Level Trigger Current: 3 5V Input Interface: 1. DC+: 5V positive power supply 2. DC : 5V