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Product Description

The Labmart TDS-035 is a compact waterproof digital TDS meter designed for measuring dissolved solids in water and other compatible liquids. It features a 0–19,990 ppm measurement range, temperature measurement, automatic temperature compensation and a clear 4-digit LCD display.

Product Overview

The Labmart TDS-035 Waterproof TDS Meter with Temperature Display is a portable instrument for routine total dissolved solids measurement. With its extended measurement range and compact pen-style construction, it is suitable for laboratory, water-quality and general liquid-testing applications.

The instrument also provides temperature measurement and automatic temperature compensation, helping users account for temperature effects during TDS testing.

Key Features and Benefits

  • Wide TDS Range: Measures up to 19,990 ppm for a broad range of water-quality applications.
  • Temperature Display: Provides temperature information along with TDS measurement.
  • Automatic Temperature Compensation: Helps maintain measurement consistency when sample temperature varies.
  • 10 ppm Resolution: Enables practical monitoring of changes in dissolved-solids concentration.
  • Waterproof Construction: Suitable for routine testing around liquids.
  • 4-Digit LCD: Provides a clear digital display of readings.
  • One-Point Calibration: Screw-adjustable calibration provides a straightforward calibration method.
  • Compact Portable Design: Convenient for laboratory and field testing.

4. Technical Specifications

Specification Details
Product Type Waterproof Digital TDS Meter
Model TDS-035
Brand Labmart
TDS Measurement Range 0–19,990 ppm
Common Listed Range 10–19,990 ppm
TDS Resolution 10 ppm
TDS Accuracy ±2% F.S.
Temperature Range -50 to 70°C
Temperature Resolution 0.1°C
Temperature Accuracy ±1°C
ATC Range 0–50°C
Display 4-digit LCD
Calibration 1-point screw calibration
Waterproof Yes
Operating Humidity ≤95% RH
Power Supply 4 × 1.5 V AG13 batteries
Dimensions 188 × 35 × 35 mm
Weight 98 g
Construction Sturdy plastic housing
Temperature Compensation Automatic

Specification note: The product is commonly marketed as 10–19,990 ppm, while the detailed technical specification lists 0–19,990 ppm. The broader technical range has therefore been retained above.

5. Applications

  • Drinking-water testing
  • Water-quality monitoring
  • Laboratory water analysis
  • RO/filtered-water testing
  • Aquaculture
  • Hydroponics
  • Aquarium water testing
  • Process-water monitoring
  • Environmental water testing
  • General liquid TDS measurement

6. Suitable For

  • Water-testing laboratories
  • Quality-control teams
  • RO and water-treatment professionals
  • Aquaculture operators
  • Hydroponic growers
  • Aquarium users
  • Educational laboratories
  • Field technicians
  • Industrial water-testing applications

7. Product Benefits

  • Portable and lightweight – easy to carry for on-site testing.
  • Waterproof design – suitable for routine liquid measurements.
  • Wide measurement capability – accommodates low to relatively high TDS samples.
  • Temperature measurement included – provides additional sample information.
  • Automatic temperature compensation – helps improve consistency across varying temperatures.
  • Simple calibration – one-point screw calibration is straightforward for routine use.
  • Clear digital display – makes results easy to read.

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