汤加国防军米

TDS METER (Water Quality Tester) Monitor TDS level for . Drinking water . Water Filters . Hydroponics . Aquariums . Food & Coffee . Pools &Spas . Colloidal Silver Features Include: . Wide range (0-9990 ppm) . digital thermometer . Auto shut-off . data hold . auto temperature compensation . 1000+ hours of continuous . 3 year limited warranty . factory calibrated Total dissolved solids (tds) are the total amount of mobile charged ions, including minerals, Salts or dissolved in a given volume of water. TDS, which is based on conductivity, is expressed in parts per million (ppm) or milligrams per liter (mg/L). TDS includes any includes any inorganic element present other than the pure water molecule(H20)and suspended solids. TDS affects everything that consumes, lives in or uses water, from fish and plants to plumbing and laboratories. For people, the lower the TDS level in the water you drink ,the more efficiently your body’s cells are hydrated. The higher the TDS level in the water, the grater the probability of harmful contaminants that can pose health risks or hinder the absorption of water. The U.S.EPA’S maximum contaminant levels of TDS for huma consumption is 500 ppm. Know when to change your water filter use a TDS meter! Features and specifications Hold function: saves measurements for convenient reading and recording. Auto-off function: turns off meter after after 10 minutes of non-use to save batteries. Extended range: measures from 0 to 999 ppm with a resolution of 1 ppm, Indicated by a blinking’*10’image. Tds range:0 9990 ppm Temp rang : 0 99 celsius(tds-1tm only) Accuracy: +/_2% Battery: 1*3v(button cell) Size: 15*3*1.5cm Weight: 52g(1.84 oz) Instructions for the TDS meter 1. Remove the protective cap. 2. Turn the tds meter on. the on/off switch is located on the panel. 3. Immerse meter into the water/solution up to the maximum immersion level(2’’) 4. Wait until the display stabilizes. the tds meter automatically compensates for temperature variations. Once the readout is stabilized(10-30 seconds),press the hold button to view the reading out of the water. 5. To use the thermometer, turn the meter on and press the temp button. Pressing the temp button again will switch it to tds mode. 6. After usage, shake off water from your meter or wipe it with a tissue. 7. Do not touch the metal probes. Clean the probes with rubbing alcohol and a cotton swab. CALIBRATION: Your meter has been calibrated in our factory with international standard calibration solution, which is suitable for most applications. Recalibration may be necessary from time-to-time depending on usage. Three Year Limited Warranty This product is warranted to the purchaser against material and workmanship for three (3) years from the date of purchase. What is covered: Repair of parts and labor, or replacement at the company’s option. Transportation charges to the purchaser. What is not covered: Transportation charges to the company. Damages from abuse or improper maintenance (see operating instructions and precautions). Any other consequential damages, or incidental expenses, including damages to property. Some states do not allow the exclusive or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. Implied warranties: Any implied warranties, Including implied warranties of merchantability and fitness for a particular purchase, are limited in duration to three years from the date of purchase. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply to you. To the extent any provision of this warranty is prohibited by federal or state law and cannot be preempted, it shall not be applicable. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. Precaution Do not drop the entire TDS meter in water or dip beyond the maximum immersion level. This unit is not water-tight and is not covered under the warranty if water or other liquid enters the unit. Do not store the TDS meter in high temperature or direct sunlight. This will shorten the life-span of the product and void the warranty.WHAT IS TDS?