| Variation ID | Pack Size | List Price | Qty | ||
|---|---|---|---|---|---|
| photo_camera | 1 Pack
HI-735 |
£90.20 |
This handy Checker is easier to use and more accurate than chemical tests kits. It is dedicated to a single parameter. It has single button operation system and easy to use.
The large LCD is easy to read and the auto shut-off feature assures the battery will not be drained.
Ideal for:
| Water Hardness Guide | ||
| Hardness classification | Parts per million (ppm) | Grains per gallon (gpg)* |
| Very soft | <17.1 | <1.0 |
| Soft | 17.1 to 60 | 1 to 3.5 |
| Moderately hard | 61 to 120 | 3.5 to 7.0 |
| Hard | 120 to 180 | 7.0 to 10.5 |
| Very hard | 180 + | 10.5 + |
| * 1 grain per gallon = 17.1 ppm |
| Range | 0 to 350 ppm (mg/L) as CaCO3 |
| Resolution | 1 ppm (mg/L) |
| Accuracy | ±6 ppm ±6% of reading @ 25°C |
| Light source | Light Emitting Diode @ 470nm |
| Light Detector | Silicon Photocell |
| Method | Adaptation of the EPA recommended Method 130.1. The reaction between calcium, magnesium, and the reagents causes a red-violet tint in the sample. |
| Environment | 0 to 50°C; max 95% RH non-condensing |
| Battery type | 1.5V AAA Alkaline |
| Auto-off | After 10 minutes of non-use |
| Dimensions | 86.0 x 61.0 x 37.5 mm |
| Weight | 64g |
| Ordering Information | HI-735 Checker HC is supplied with Total Hardness Low Range reagent starter kit (reagents 23 tests), sample cuvette and cap (2), 1mL graduated syringe with tip (2), plastic refilling pipette (1), 1.5V AAA alkaline battery (1), and instruction manual |