LAE Electronic R D Product Logistic Customer Care Products for OEM Product promotion Location. Controllers Refrigeration controllers Compressor controllers Meters. Minimum range value (in the models AC1-5A…, AC1-5I… only). RLO takes AC1-5TS2RW-A data I/O Thank you for having chosen a LAE electronic product. E-mail: email@example.com. OAU. =THR. 2CH. REF; HEA. Refrigerating control (REF) or heating control mode (HEA) for the auxiliary output. 2HY. 0.19.9.