Length 5.3 in (134.6 mm)
Diameter (OD) 1.4 in (35.6 mm)
Weight 0.3 lbs
Housing Acetal CopolymerPolyvinylchloride (PVC)
Operating Temp Range -25 to 75ºC
Operating Depth Range 4000 ft
Sensor Capacity 250 nodes
Output RS-485 Modbus RTU
Warmup Time 10 sec
Reading Time 1 sec
Power Requirements Voltage: 5 to 24 VDC
Power Consumption Active: 1.35 mASleep: 0.3 mA


Temperature Specifications


Range 0 to 50ºC
Accuracy ±0.075ºC
Resolution 0.01ºC
Unit of Measure Celsius


Sensor Information

Protocol: Modbus-RTU

Baud Rate: 19200

Parity: N81

Default Address: 1

Universal Address: 251

Format: Big Endian

Timeout: 500ms


Connector Signals

T-Node FR sensors require four signals for operation: +5 – 24 VDC, Ground, RS485A and RS485B.

The following pinout refers to the T-Node FR Plug end.

Pins of UW Receptacle

Figure 1: T-Node FR Plug pin numbering


Pin Signal
1 RS485A
2 RS485B


SDI-12 Pass-through
4 5-24V+
5 5V Signal Pin
6 RS232 RX Pass-through
8 RS232 TX Pass-through

REV: 13H06

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