... , temperature controller, electric cooker, rubber machinery, fountain control, numerical control machinery etc.against moisture,humidity,explosion. The input terminals ... ≥2000V AC/min Control VoltageDC 3-32V/AC 90-250V DC 3-32V/AC 90-250V Control Current6-25mA 12-20mA ... Controller Signal adjustor They are widely used in industrial control and measurement field, such as machinery, electrical cabinet, ...