Features: 1. No moving parts inside the device, it will be not affected by friction, which are suitable for powder or liquid application. 2. Various models are suitable for different application. 3. Operating temperature -20 ~ 200¢XC, Max. 800¢XC. 4. The sensitivity, which includes 10pf, 20pf and 40pf, is adjustable. 5. With timing delay design, timing adjustable range 0 ~ 6 seconds. 6. Voltage: 110V/220VacC or 24Vdc 7. Output: NPN transistor, 5A/250Vac and 5A/240Vac SPDT contact. 8. Standard connecting screw 1" NPT, special specification are acceptable. 9. Enclosure protection IP65 or explosion-proof. 10. SA-75U Zener barriers inside provide intrinsic safety (Ex ia IIC) to SA17( )D type level switch.