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Price 94$ excl.VAT
In StockProduct information “HI755 Checker HC ® – MARINE Alkalinity (dHK)”
The HANNA HI 755 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and have low resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 755 Checker®HC is accurate and affordable.
The Checker®HC features an accuracy of ±5 ppm (mg/L) ±5% of reading and uses the colorimetric method.
The contoured style of this Checker®HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.
The HI 755 Checker®HC is extremely simple to use. After zeroing the instrument with your water sample, add the reagent to the cuvette and gently invert 5 times. Then insert the cuvette into the HI 755 Checker®HC and press the button to read the results. It’s that easy.
Product Manuals
Range : 0 to 300 ppm (mg/L)
Resolution : 1 ppm (mg/L)
Accuracy @ 25°C : ±5 ppm (mg/L) ±5% of reading
Battery Type : (1) 1.5V AAA
Light Source : LED @ 610 nm
Light Detector : silicon photocell
Environment : 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Auto-off : after ten minutes of non use
Dimensions : 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight : 64 g (2.25 oz.)
Method : colorimetric method
Product Type: Turbidity Products and Accessories
| Display | Graphic Display | ||
| Interfaces | Infra red interface for test data transfer (via IRiM) RJ45 socket for internal updates |
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| Optics | LEDs, Interference Filters (IF) and photo sensor in transparent sample chamber. Wavelength specifications of interference filters: 430 nm Δ λ = 5 nm 530 nm Δ λ = 5 nm 560 nm Δ λ = 5 nm 580 nm Δ λ = 5 nm 610 nm Δ λ = 6 nm 660 nm Δ λ = 5 nm |
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| Wavelength Accuracy | ± 1nm | ||
| Photometric Accuracy | 2% full scale (at 20 ° C to 25 ° C) | ||
| Photometric Resolution | 0.005 A | ||
| Operation | Acid and solvent resistant touch sensitive keypad; audible feedback via integrated beeper | ||
| Power Supply | 4 x AA batteries; operating time 26 hours continuous or 3500 tests | ||
| Auto Off | approx 20 minutes after last keypress with audible signal | ||
| Dimensions | Unit 210 x 95 x 45 mm Carry case 395 x 295 x 106 mm |
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| Unit Weight | 450g | ||
| Ambient Conditions | 5-40 ° C, 30-90% rel humidity (non condensing) | ||
| Memory Capacity | 1000 data sets with time, date, sample ID | ||
| Conformity | CE |




