HM Digital TDS-4 Pocket Size TDS Meter

• 🔹 The TDS-4 is ideal for all water purification applications
• 🔹 The smallest and lightest TDS meter on the market & perfect for personal or consumer use
• 🔹 Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1 ppm. From 1000 to 9990 ppm, the resolution is in increments of 10 ppm
• 🔹 Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver
• 🔹 Recommended for fresh water aquariums & aquaculture, horticulture & hydroponics, and pools & spas.

A TDS tester that's ideal for all water purification applications, drinking water testing, pools & spas, fresh water aquariums, hydroponics, and colloidal silver. Perfect for both consumer or commercial use. Carry one in your pocket at all times! Features The smallest and lightest TDS meter on the market. Sleek design is perfect for personal or consumer use. Advanced microprocessor technology. Hold Function: saves measurements for convenient reading and recording. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1 ppm. From 1000 to 9990 ppm, the resolution is in increments of 10 ppm, indicated by a blinking 'x10' image. Display: large and easy-to-read LCD screen. Recommended for fresh water aquariums & aquaculture, horticulture & hydroponics, and pools & spas. Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Need help deciding which meter is right for you? View our TDS/EC Meter Selection Guide. Specifications Range: 0 - 9990 ppm (mg/L) Resolution: 0-999: 1 ppm; 1000-9990 10 ppm (indicated by a 'x10' icon) Accuracy: +/- 2% EC-to-TDS Conversion Factor: NaCl (avg. 0.5) ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Farenheit) Power source: 2 x 1.5V button cell batteries (included) (LR44 or equivalent) Battery life: 1000 hours of usage Dimensions: 14 x 2.3 x 1.5 cm (5.5 x .9 x .55 inches) Weight: 34g (1.2 oz) Power supplied to the unit conforms to current UK Regulations. Standard warranty does not cover any damage caused by power surge or similar. We recommend installing a surge protector.