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Extech Instruments EC405 Water Quality Meter

The ExStik Conductivity/TDS Salinity Meter is a waterproof, portable device designed for accurate multi-parameter water testing. It measures conductivity, TDS, salinity, and temperature with autoranging modes suitable for various water qualities, from tap to wastewater. Features include a large digital display, adjustable TDS ratio, data logging, and automatic temperature compensation. Its IP57 waterproof design and easy-to-replace sensor make it ideal for wet environments. The kit includes calibration standards, sample cups, a protective sensor cap, and batteries for versatile field use in water quality analysis.

Authorized Distributors
Source:Newark
Part No:EC405
Stock:1
Inv Date:06-21-2026
Price: Unit price: $76.59
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Source:DigiKey
Part No:EC405
Stock:0
Inv Date:06-21-2026
Price: Unit price: $52.99
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Part No:EC405
Stock:0
Inv Date:06-21-2026
Price: Unit price: $52.99
Buy/RFQ:
Part No:EC405
Stock:0
Inv Date:06-21-2026
Price: Unit price: $52.99
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Part No:EC405
Stock:0
Inv Date:06-20-2026
Price: Unit price: $45.03
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Part No:EC405
Stock:0
Inv Date:06-21-2026
Price: Unit price: $63.95
Buy/RFQ:
Part No:EC405
Stock:0
Inv Date:06-20-2026
Price: Unit price: $67.99
Buy/RFQ:
Part No:EC405
Stock:0
Inv Date:06-20-2026
Price: Unit price: $52.99
Buy/RFQ:
Part No:EC405
Stock:0
Inv Date:06-21-2026
Price: Unit price: $63.95
Buy/RFQ:
Authorized Distributors
Part No:EC405
Stock:1
Inv Date:06-20-2026
Price: N/A
Buy/RFQ:
Part No:EC405
Stock:4
Inv Date:05-11-2026
Price: N/A
Buy/RFQ:

Extech Instruments EC405 Water Quality Meter Specifications:

  • Ranges: Conductivity 0 to 199.9pS/cm (0.1pS/cm resolution), 200 to 1999yS/cm (1pS/cm resolution), 2.00 to 19.99mS/cm (0.01mS/cm resolution), Temperature 32° to 149°F (0.065°C).
  • Units include uS/em, mS/cm, ppm, ppt, mg/L, g/L with auto calibration and adjustable TDS ratio from 0.4 to 1.0.
  • Display features a large 3-1/2 digit (2000 count) digital readout with analog bargraph; data hold, auto power off, and low battery indicator included.
  • Waterproof IP57 standard design withstands wet environments, with internal memory storing up to 25 labeled readings.
  • Power supplied by four CR2032 button batteries; size approximately 1.4 by 6.8 by 1.6 inches; weight about 3.8 oz (110 g).
  • Includes conductivity cell, protective sensor cap, sample cups, calibration standards, carrying case, and optional extension cables for field testing.

Buy the Extech Conductivity/TDS Salinity Meter – Reliable Water Quality Testing for Industrial Applications

Enhance your water testing capabilities with the Extech Conductivity/TDS Salinity Meter, a waterproof, portable device that measures multiple parameters including conductivity, TDS, salinity, and temperature. It features a large digital display, autoranging modes, and automatic temperature compensation for accurate readings across various water types. Its IP57 waterproof design ensures durability in wet environments, making it ideal for industrial, environmental, and laboratory use. The kit includes calibration standards, sample cups, a protective sensor cap, and batteries, providing everything needed for on-site water analysis.

Buy Extech EC405 Conductivity/TDS Salinity Meter now and ensure precise water quality analysis for industrial and environmental applications with ease.

Frequently Asked Questions

Where can I buy Extech Instruments EC405?

You can click on the BUY or RFQ button to purchase EC405 from an authorized Extech Instruments distributor.

How do I troubleshoot issues or seek technical support for part EC405?

You can download the EC405 datasheet or visit the Extech Instruments website for support.

Who is the manufacturer of EC405?

Extech Instruments

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