Features:

• Bi-directional Communication using a Phone Line
• Uses MODBUS Protocol for Reliable Data Transfer
• 1 Dry Contact and 1 Analog Input
• 1 'C' Relay Contact and 1 Analog Output
• Uses Analog Half-Duplex Leased Telephone Line
• No Calibration Required
• Microprocessor Controlled for High Accuracy
• Power: 117 VAC 50/60 Hz (Optional 24 VDC)
• Built-in Overvoltage Protection on Telephone Line
• High Noise Rejection
• CSA and NRTL Approved (LR51078)