Kavita Corporation

• Digital TDS Meter for water testing is a high-precision Total Dissolved Solids Meter and Water Quality Tester. Perfect for home, drinking water, and aquariums, ensuring the best water quality.
• TDS Meter ,Total Dissolved Solids Meter Monitor the water you consume is Good for Your Health or Not. You can also measure Input and Output Total Dissolve Solid of the water purifiers and filters.
• Package Contains: 1 Total Dissolved Solids(TDS) Meter, Battery included and User Manual
• Durable and Convenient: Made from sturdy plastic material, it comes with a protective carrying case and includes a calibration solution for accurate readings over time.
• LCD Digital Display: The easy-to-read LCD screen displays TDS levels, eliminating the need for calculations.

The HM-500 Hydromaster is the most versatile and high-end continuous monitor indicating EC/TDS, pH, and Temp providing accurate, stable readings the user can rely on. With its rechargeable battery, this unit is portable or can be wall-mounted.

To make it even more user-friendly, it comes equipped with a touch screen, high & low alarm set points, and recorded readings. It has a built-in sensor for Automatic Temperature Compensation (ATC) ensures readings always be accurate at various temperatures.

FEATURES:

• Continuous pH/EC/TDS/Temp Monitor
• Rechargeable battery
• RF Resistant
• Portable/Wall Mount/Benchtop
• Data Storage: Up to 20 measurement readings
• Auto Shut-Off: After 5 minutes
• Alarm: Adjustable High & Low Set Point and on/off
• Display: LCD Touch-Type Screen with Auto backlighting
• Probe: ABS with Platinum electrodes for EC / Single Junction pH Sensor
• HydroMaster (HM-500): Three-Year Limited Warranty
• pH Probe (SP-P5): Six Month Limited Warranty. 

The HM-200 is a versatile portable pH/EC/TDS/Temp combo monitor with a replaceable sensor ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, colloidal silver, labs & scientific testing, ecology testing, boilers & cooling towers, water treatment and more. It has a built-in sensor for Automatic Temperature Compensation (ATC), which ensures readings are always accurate at various temperatures.

• Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature
• Five scales: pH, µS, mS, ppm 0.5 (NaCl) Scale & 0.7 (442™) Scale
• Automatic Temperature Compensation (ATC) using three temperature coefficients
• Digital Calibration (push button) to any point within the meter’s range
• Auto-off function, data-hold function and low-battery indicator
• Large and easy-to-read LCD Screen
• Displays 3 parameters (pH/EC or TDS/Temp) simultaneously.
• Replaceable Sensors (model SP-C2 for Conductivity, SP-P5 for pH)
• Factory Calibrated (pH/EC/TDS)
• Includes protective rubber boot, 2 (AA) alkaline batteries, pH 4 & 7 calibration solutions, pH storage solution

HM Digital COM-100L is a professional-grade EC/TDS/Temperature meter designed for accurate water quality testing in hydroponics, aquaculture, RO systems, labs and industrial applications. It measures EC, TDS and temperature across four scales (µS, mS, ppm 0.5 & 0.7) with ±2% accuracy and ATC. Featuring digital calibration, auto-hold and waterproof IP-67 housing, it includes a backlit LCD, replaceable platinum probe (SP-C1) and auto-off function. Compact, durable and factory calibrated for precision.

EC Range: 0 – 9990 µS; 0 – 9.99 mS

TDS Range: 0 – 8560 ppm (0.7 Scale); 0 – 8.56 ppt (0.7 Scale)

0 – 5000 ppm (0.5 Scale); 0-5.00 ppt (0.5 Scale)

Temperature Range: 0-55 °C; 32-130°F

Resolution: 0-99: 0.1 µS/ppm/ 0.01mS/ppt; 100-999: 1 µS/ppm; 1000-9990: 10 µS/ppm. Temp. resolution is 0.1 °C/F

Accuracy: +/- 2%

EC to TDS Conversion Factor: Non-linear conversions for KCl, 442TM or NaCl solutions, selected by the user.

Probe: Detachable platinum electrodes

Housing: IP-67 Waterproof (submersible; floats)

Power source: 2 x Triple A (AAA) included

Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)

442 is a registered trademark of the Myron L Company.

HM Digital PSC-50 TDS/EC Controller is designed to maintain precise water quality by automatically monitoring and controlling TDS or EC levels. When readings exceed the user-set limit, the built-in alarm and relay activate, and once levels drop below the threshold, the system resets to normal. It features a large, bright LED display, on-screen temperature indicator (°C/°F), and a control switch for connected devices. Supplied with one high-quality SP-1-PSC sensor probe, it’s ideal for RO systems, water treatment, and industrial applications.

EC Range: 0-9999 µS / 0-20.00 mS

TDS Range: 0 – 5000 ppm / 0-10.00 ppt

Accuracy: ±2% (of the reading)

Conversion Factor: NaCl (avg. 0.5)

Resolution: 0.1 (0-99.9); 1 (100-9999); 0.01 (mS & ppt)

ATC: Yes (1 – 60°C)

Calibration: Digital by push buttons

Set-Point: Single point, controlled by on-screen up/down buttons (to any point within the range)

Relay Control: 1 point relay setting. Trigger relay when detects exceed value.

Relay Switching Electrical Specification :  5A, 250VAC

Alarm: Optional steady beep (set by user)

Display: Bright 2.3″ LED 

Cable:  3 meter (9.8 ft) shielded cable

Power Source: AC 110V / AC 220V

Dimensions: 9.6 x 4.8 x 10 cm (3.8 x 1.9 x 3.9 in.)

Monitor Weight: 261 g (9.2 oz)