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ES-2 Electrical Conductivity and Temperature Sensor

Updated:2025-03-13

Brand: METER
Model: ES-2
Description: The ES-2 Electrical Conductivity and Temperature Sensor is designed to measure the electrical conductivity of water in a pipe or tank. When you pair the new ES-2 with a TEROS 12 soil moisture sensor
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Product Details

ES-2 Electrical Conductivity and Temperature Sensor Description：

User's Guide User's Manual

The ES-2 Electrical Conductivity and Temperature Sensor is designed to measure the electrical conductivity of water in a pipe or tank. When you pair the new ES-2 with a TEROS 12 soil moisture sensor in the soil, you’ll begin to develop a complete picture of the salts that are going into your system, as well as the salts remaining in your soil or substrate.

ES-2 Electrical Conductivity and Temperature Sensor Specifications：

GSA	View GSA details
Measurement Specifications
Temperature	Range: –40 to 60 °C Resolution: 0.1 °C Accuracy: ±1 °C
Bulk EC	Range: 0 to 120 dS/m Resolution: 0.001 dS/m Accuracy: ±0.01 dS/m or ±10% (whichever is greater)
Communication Specifications
Output	DDI serial or SDI-12 communication protocol
Data logger compatibility	METER ZL6 data loggers and any data acquisition system capable of 3.6- to 15-VDC power and serial or SDI-12 communication
Physical Specifications
Dimensions	Length: 10.9 cm (4.30 in) Width: 2.4 cm (0.95 in) Thread: 1/2-in National Pipe Thread
Operating temperature range	Minimum: –40 °C Maximum: 60 °C NOTE: Sensors may be used at higher temperatures under certain conditions; contact Customer Support for assistance.
In-line pipe connector type	1-in Tee socket pipe fitting
Cable length	5 m (standard) 75 m (maximum custom cable length) NOTE: Contact Customer Support if a nonstandard cable length is needed.
Connector types	3.5-mm stereo plug connector or stripped and tinned wires
Electrical and Timing Characteristics
Supply voltage (VCC to GND)	Minimum: 3.6 V Maximum: 15.0 V
Digital input voltage (logic high)	Minimum: 2.8 V Typical: 3.6 V Maximum: 5.0 V
Digital input voltage (logic low)	Minimum: –0.3 V Typical: 0.0 V Maximum: 0.8 V
Digital output voltage (logic high)	Typical: 3.6 V
Power line slew rate	Minimum: 1.0 V/ms
Current drain (during measurement)	Minimum: 20 mA Typical: 20 mA Maximum: 28 mA
Current drain (while asleep)	Typical: 0.03 mA
Power up time (DDI serial)	Maximum: 100 ms
Power up time (SDI-12)	Minimum: 100 ms Typical: 200 ms Maximum: 250 ms
Power up time (SDI-12, DDI disabled)	Typical: 125 ms
Measurement duration	Typical: 25 ms Maximum: 50 ms
COMPLIANCE	EM ISO/IEC 17050:2010 (CE Mark)