Hanna HI705 Silica Low Range Checker
| Brand | |
|---|---|
| Model | HI-705 |
| Measurement | Silica, low range |
| Measuring range | 0.00–2.00 ppm as SiO₂ |
| Display resolution | 0.01 ppm |
| Accuracy at 25°C | ±0.03 ppm ±5% of reading |
| Method | Heteropoly blue; adaptation of ASTM D859 |
| Starter tests | 12 |
| Power | 1 Ă— 1.5 V AAA battery |
The HI705 measures low concentrations of silica in a prepared water sample and gives a digital result. It is useful when checking source water or following changes in an aquarium, aquaculture or environmental water system, where a high range instrument may not provide the detail you need.
Supplier dispatch: Supplied directly by Hanna Instruments. Supplier stock was shown as available at our latest check.
£102.82 (inc VAT)
Hanna HI705 Silica Low Range Checker
Low range silica testing without a colour chart
The HI705 measures low concentrations of silica in a prepared water sample and gives a digital result. It is useful when checking source water or following changes in an aquarium, aquaculture or environmental water system, where a high range instrument may not provide the detail you need.
Choosing the right measurement
Choose the range for the concentration you expect to measure. The low range HI705 and high range HI770 use different methods and dedicated reagents; a higher maximum reading does not make an instrument more sensitive at the bottom of the scale. Silica and phosphate are separate measurements, so one result should not be substituted for the other.
Technical overview
| Specification | Details |
|---|---|
| Measurement | Silica, low range |
| Measuring range | 0.00–2.00 ppm as SiO₂ |
| Display resolution | 0.01 ppm |
| Accuracy at 25°C | ±0.03 ppm ±5% of reading |
| Method | Heteropoly blue; adaptation of ASTM D859 |
| Starter tests | 12 |
| Power | 1 Ă— 1.5 V AAA battery |
What is included
- HI705 Checker
- Two sample cuvettes with caps
- Starter reagents for 12 tests
- AAA battery and instructions
Reagents and optional accessories
HI705-25 is the separate 25-test refill. The HI705-11 calibration check set is an optional validation accessory.
Care and reliable results
Use clean, unscratched cuvettes, keep the optical surfaces dry and follow the exact reagent quantities and reaction time in the HI705 instructions. The sample reagents perform the test; the optional HI705-11 check set validates instrument performance and does not replace them.
Compare related options
Further Hanna supplies and comparisons
Matching methods and supplies
Match the exact instrument and method. These are separate products; check the supplied contents before adding another item.
- Hanna HI705-11 Silica Low Range Checker Verification Set — Reference cuvettes check the matching factory-calibrated Checker; they are not sample reagents and do not provide user calibration.
- Hanna HI705-25 Silica Low Range Reagents for HI705, 25 Tests — Match the full instrument code and analytical method. Reagents are separate from the instrument and from verification standards; no substitution by shared parameter name.
Care and method preparation
Cleaning, storage and sample preparation have different roles. Follow the instructions for the exact instrument and method.
- Hanna HI731318 Cuvette Cleaning Cloths, 4 Pack — Cloths and cleaning liquid have separate optical-care roles. This is not an instrument-specific reagent, standard, mandatory extra or supplied-item promise.
- Hanna HI93703-50 Cuvette Cleaning Solution, 230ml — Cloths and cleaning liquid have separate optical-care roles. This is not an instrument-specific reagent, standard, mandatory extra or supplied-item promise.
Reviews
There are no reviews yet.