DigiTS-Digital Temperature String, RS485, SDI-12 Interface

Time:2026/01/20 View:1517 Category:Measurements Category:Products Category:SDI-12 Products Category:SDI-12 Sensors Category:Soil Science Category:Temperature

　　The DigiTS Temperature String consists of an arrangement of temperature sensors mounted in rugged reinforced cable. Temperature points are able to provide long-term connection in all mediums. Each DigiTS is manufactured to the client’s specific requirements.

　　The SDI-12 output provides universal compatibility with any SDI-12-enabled data logger and low power applications, or use a RS485 physical interface for applications that require long cable runs.

Resources
User Manual	DigiTS-Digital Temperature String User Manual(RS485, SDI-12 Interface)
Software (RS485 Interface)	SensorOneSet-EN
Software (SDI-12 Interface)	SensorOneSetSDI12-EN

　　The SDI-12 output provides universal compatibility with any SDI-12-enabled data logger and low power applications, or use a RS485 physical interface for applications that require long cable runs.

Features

■ Accurate and stable measurements

■ Each sensor is individually addressed and referenced to its depth

■ Digital Output SDI-12 or RS485 with built-in surge protection

■ Low power consumption

■ Robust waterproof construction and reinforced cable

■ Reverse power protection and Built-in TVS/ESD protection

■ Excellent price-performance ratio

Applications

■ Permafrost profile temperature

■ Ocean and lake profile temperature

■ Temperature field measurement

■ Scientific Research

Specification
Output Interface	Optional: SDI-12, V1.3 Optional: RS485, Modbus-RTU
Power Supply	9-28V DC
Power Consumption	SDI-12 Interface: Quiescent current: < Number of temperature nodes * 20uA @12V DC Current during measuring: < Number of temperature nodes * 1mA @12V DC Current during data reading:< 20mA + Number of temperature nodes * 1mA @12V DC RS485 Interface: Quiescent current: < Number of temperature nodes * 400uA @12V DC Current during measuring: < Number of temperature nodes * 1.2mA @12V DC Current during data reading:< 20mA + Number of temperature nodes * 1.2mA @12V DC
Temperature Accuracy	Operating Range: -55~85°C Accuracy (Typical): ±0.2°C over -40~85°C Accuracy (Worst Case): ±0.4°C over -40~85°C; ±0.5°C over -55~-40°C Resolution: 0.004°C
Measurement Interval	Configurable, It can be configured to measure while reading data or to measure periodically automatically
Warm-up time	<10 Seconds
Sensor nodes	Max. 36 nodes in one temperature string
Dimension	Sensor Node: 11023mm (Length Diameter)
Cable Length	Max. 152m (500 feet)
Minimum sensor spacing	15cm (6 inch)
Material of the contact surface	Sensor Node: Nylon, Cable: PUR
Cable	Rugged kevlar reinforced cable, 20AWG, Cable Diameter<7.5mm
IP Ratings	IP68

Ordering Information
Parameters	Code	Comments
Code 1:Product Series	DigiTS	DigiTS, Digital Temperature String
Code 2: Power Supply	A X	9-28V DC Customize
Code 3: Output Interface	A B	RS485(Modbus-RTU) SDI-12
Code 4: Connector	B C	Cold pressed terminal Stripped & tinned lead wires
Code 5: Leading Cable Length	002 XXX	2 Meters Customize, XXX is required cable length (Unit: meter)
Code 6: Temperature String Serial Number	[TempStringSerialNum]	Specifies a serial number for the temperature chain, [TempStringSerialNum] ranging from 0-65534. Nodes in the same temperature chain have the same serial number of the temperature chain. If there are multiple temperature chains in the system, ensure that the serial number of each temperature chain is different from that of other temperature chains.
Node 1 Info (end node) :	{Addr/DepthFromEnd}	The end node is the node furthest away from the collector. Addr indicates the slave address of the temperature node. DepthFromEnd is the distance (cm) between the local node and the end node. The DepthFromEnd of the end node is generally set to 0cm.
Node 2 Info: Temperature node next to the Node 1	{Addr/DepthFromEnd}	Addr indicates the slave address of the temperature node. DepthFromEnd is the distance (cm) between the local node and the end node.
……	……	……
Node 36 Info: Temperature node next to the Node 35	{Addr/DepthFromEnd}	Addr indicates the slave address of the temperature node. DepthFromEnd is the distance (cm) between the local node and the end node.