HM TDS (Total Dissolved Solids) Meter TDS-3

HM TDS (Total Dissolved Solids) Meter TDS-3

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HIGH QUALITY TDS METER FOR HYDROPONIC GROWERS

Measuring Total Dissolved Solids in your water system

and determine how much nutrient to use for you plants

This is a fully Water Proof Unit

What is TDS?

Total Dissolved Solids (TDS) are the total amount of mobile charged ions, including minerals, salts or metals dissolved in a given volume of water, expressed in units of mg per unit volume of water (mg/L), also referred to as parts per million (ppm).

TDS is directly related to the purity of water and the quality of water purification systems and affects everything that consumes, lives in, or uses water, whether organic or inorganic, whether for better or for worse.

What Are Total Dissolved Solids?

"Dissolved solids" refer to any minerals, salts, metals, cations or anions dissolved in water. This includes anything present in water other than the pure water (H20) molecule and suspended solids. (Suspended solids are any particles/substances that are neither dissolved nor settled in the water, such as wood pulp.)

In general, the total dissolved solids concentration is the sum of the cations (positively charged) and anions (negatively charged) ions in the water.

Parts per Million (ppm) is the weight-to-weight ratio of any ion to water.

A TDS meter is based on the electrical conductivity (EC) of water. Pure H20 has virtually zero conductivity. Conductivity is usually about 100 times the total cations or anions expressed as equivalents. TDS is calculated by converting the EC by a factor of 0.5 to 1.0 times the EC, depending upon the levels. Typically, the higher the level of EC, the higher the conversion factor to determine the TDS.

Why Should You Measure the TDS Level in Your Water?

The EPA Secondary Regulations advise a maximum contamination level (MCL) of 500mg/liter (500 parts per million (ppm)) for TDS. Numerous water supplies exceed this level. When TDS levels exceed 1000mg/L it is generally considered unfit for human consumption. A high level of TDS is an indicator of potential concerns, and warrants further investigation. Most often, high levels of TDS are caused by the presence of potassium, chlorides and sodium. These ions have little or no short-term effects, but toxic ions (lead arsenic, cadmium, nitrate and others) may also be dissolved in the water.

Even the best water purification systems on the market require monitoring for TDS to ensure the filters and/or membranes are effectively removing unwanted particles and bacteria from your water.

TDS METER Specification:

Range: 0-1999 ppm

Resolution: 1ppm

Accuracy: + 2% Full Scale

Calibration Solution: (optional): 1382 ppm

Batteries: 4x1.5v alkaline

ATC: 5 ^oC to 55^oC

Environment: RH 95% MAX; 0 to 50 ^oC (32 to 122 F)

Dimension: 168x33x20mm

Weight: 70g

Package:

1 x TDS Meter (color may change)

GTIN: 880926104309

Shipping Details

We DO NOT delivery to PO BOX or Parcel Locker.

Orders will be dispatched within 2 business day after Payment is cleared. Lead time around 2-6 business days for most Metro areas. Sometimes the delivery could be delayed due to weather or speical condition. Please contact us directly and our staff will follow up.

MelbourneHydro is a wholly Australian Owned and Operated Online Hydroponics Retailer, which based in Melbourne Victoria. We are a leading online shop in providing customers with high quality and brand name products at unbeatable prices. Over 15 yeas experience in garden and hydroponics industry.

We do NOT ship to PO BOX or Parcel Locker.

Warranty & Returns

We take great care that each item is correctly described, authentic, not damaged, or misrepresented in anyway. We also understand that from time to time the need to return an item may occur. Please read below for an overview of our Return Policy.

Warranty on Lamps/Bulbs: Lamps & Bulbs are warranted for 3 months from the date of purchase.

Warranty on rest of the products: 1 Year Warranty starts from the date of purchase.

Change of mind

Products can be returned with 30 days of receipt. Refund or store credit will be issued upon products remain unopened, unused, and in their original packaging. Customers are responsible for shipping cost back to our return center.

Manufacture Defect and Couriers Damage

We strongly advise customers to inspect their delivered products promptly. All the Couriers Damage need to be informed within 2 days of deliver. Should any products defects be detected, we urge customers to notify us within 7 days of delivery, preferably with accompanying photographic evidence for swift resolution. Upon contact, we will assess the defect, eligible customers will receive a refund, store credit or a replacement.

Customer Damage

All the warranty are valid under proper use. We cannot assume responsibility for products damaged due to customer mishandling, such as breakage, dropping, or spillage. Therefore, we cannot offer refunds or exchanges in such cases.

Incorrect / Missing Products

While we take utmost care in packaging orders, instances of damage or incorrect or missing items may occur. We encourage affected customers to notify us within 7 days of delivery, accompanied by photographic evidence where possible. In the case of incorrect products, we request prompt notification to facilitate timely replacements or refunds.

Shipping Issues or Delays In rare instances of shipping issues, such as loss in transit, we will commit to provide a full refund or replacement.

Unclaimed Returns

In the event of unclaimed parcels, customers will be charged the original postage price to cover courier expenses incurred for returns left unclaimed at their collection centre