1Input voltage reverse polarity protection protects the current signal generator from being burned by reverse connection. 2Adopting wirewound potentiometer to achieve smooth current adjustment to avoid the sudden change of resistance and other problems that caused by the general carbon film potentiometer. 3Comes with an ammeter probe to give precise values. 4It responds and outputs immediately with no delay after adjustment. 5Universally suitable for signal source generation, valve regulation, inverter control, etc.Features:Input voltage reverse polarity protection protects the current signal generator from being burned by reverse connection.Adopting wirewound potentiometer to achieve smooth current adjustment to avoid the sudden change of resistance and other problems that caused by the general carbon film potentiometer.Comes with an ammeter probe to give precise values.It responds and outputs immediately with no delay after adjustment.Universally suitable for signal source generation, valve regulation, inverter control, etc.Specifications:Product type: 4-20mA Signal GeneratorMaterial: ABSInput power supply: DC5-28VCurrent range: 4-20mAInput voltage reverse polarity protection: SupportPackage size: approx. 10.2 * 6 * 6 cm/ 4.0 * 2.4 * 2.4 inPackage weight: 114g/ 4.0ozPackage List:1 * 4-20mA Signal Generator1 * Adapter