uxcell Nitrile Rubber O-Rings 40mm OD 32mm ID 4mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 10 32x40x4mm auspowers_batchfive The receiving/transmitting machine must be

The receiving/transmitting machine must be set to two different frequencies

Input Resistance/Power: 500Kohm/2W Output voltage: 24-380V AC

if no sound or beeps

24 pieces 8/25 inch/ 8 mm

uxcell Nitrile Rubber O-Rings 40mm OD 32mm ID 4mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 10 32x40x4mm auspowers_batchfive The receiving/transmitting machine must beuxcell Nitrile Rubber O Rings 40mm OD 32mm ID 4mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 10 Product Features [Size] 40mm Outside Diameter, 32mm Inner Diameter, 4mm Cross Section Diameter [Hardness] 70A Durometer (Shore Hardness) for resistance to penetration [Nitrile Rubber] Standard Nitrile Butadiene Rubber with a wide temperature range from 4F ( 20C) to 212F (100C). The o rings has smooth surface, great oil and heat