Capable stand alone controller with 4 Relays & signal outputs for select APG Modbus level sensors. The APG DCR-1006A is a capable stand alone controller 4 Relays & signal outputs for select APG Modbus level sensors. Providing simple, low-cost control, the DCR-1006A controller works together with MNU or DST ultrasonic sensors as well as the MPX level probe to allow simple level monitoring and control without the need of a more advanced system. This controller connects to APG's Tank Cloud data portal for monitoring of attached sensor. The APG DCR-1006A controller is programmed via a 4-button keypad and APG Modbus Software. The 5 digit backlit display includes a 6 Character description field and displays all pertinent information. With several sensors to choose from, and a variety of mounts, ranges, and outputs, there are plenty of options for your application needs.