HM Digital TDS-4TM Pocket TDS Temp Mtr

The HM Digital TDS-4TM Pocket Size TDS & Temp Meter is ideal for all water purification applications, drinking water testing, pools & spas, fresh water aquariums, hydroponics, and colloidal silver. Excellent for both personal or commercial use.

Features

• Includes an internal digital thermometer (celsius).
• The smallest and lightest TDS meter available on the market.
• Hold Function - Saves measurements for convenient reading and recording.
• Auto-off function - Turns off meter after 10 minutes of non-use to conserve batteries.
• Dual Range - Measures from 0 - 999 ppm, with a resolution of 1ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image.
• Factory Calibrated: HM Digital 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, pools & spas and water cooler professionals.
• Need help deciding which meter is right for you?  View the HM Digital TDS/EC Meter Selection Guide.

Specifications

TDS Range: 0-9990 ppm (mg/L)
Temp. Range: 0-80 degrees Celsius
Resolution: 1 ppm, 1 degree Celsius
Accuracy: +/- 2%
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)