ASTI - Model 56 - 4-Wire Transmitter, Controller & Analyzer - Brochure

Chemically & Mechanically Resilient Polycarbonate NEMA 4X / CSA 4 IP65 Enclosure - Standard 1/2 DIN Cutout. 115/230 VAC & 24 VDC 4-Wire Power Operation Standard With Relays. Time Proportional Control (TPC) Relays for advanced control functionality, 4 each included with each controller. Available in any combination of Single or Dual Channel pH / ORP / ISE / Conductivity Configurations.