Hanna Checker HC ® - pH in sea water, range 6.3 to 8.6 pH (HI780)
Hanna Checker HC ® - pH in sea water, range 6.3 to 8.6 pH (HI780)
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The CHECKER® HC mini photometers offer an interesting alternative between simple chemical test kits and compact measuring instruments. The handy photometers combine precision with an affordable price and are very easy to operate thanks to their large LCD and just one button. The automatic switch-off function ensures the longest possible battery life.
Highlights:
lightweight (64 g) housing, handy size
very easy to use with just one button
fast and precise measurement results
easy verification using CAL check standards
large, easy-to-read LCD
Automatic switch-off
good price
The pH of a seawater surface is normally 7.5 to 8.5. However, over the years, the pH decreases by 0.1 to 0.2 units per century. Acidification is a result of the absorption of carbon dioxide (CO2) in seawater and oceans. Carbon dioxide reacts with seawater to form carbonic acid (H2CO3).
pH changes affect the growth, reproduction and communication of marine life. Hydrogen ions tend to combine with carbonate to form bicarbonate. The greater attraction of carbonate over calcium can adversely affect skeletal structure and limit coral growth.
The HI780 Checker HC is a simple, accurate and cost-effective way to measure pH in seawater. Designed as a more accurate alternative to chemical test kits, this handheld colorimeter delivers fast and accurate pH test results.
Ideal for aquariums and marine biology
Scope of delivery: HI780 is delivered in a practical plastic box including 2 cuvettes, a starter set of reagents, batteries and operating instructions.
Technical data:
Measuring range: 6.3 to 8.6 pH
Resolution: 0.1 pH
Accuracy @25°C: ±0.2 pH
Light source: LED @525nm
Light detector: silicon photocell
Ambient conditions: 0 to 50 °C, relative humidity max. 95 %
Battery type: 1.5V AA
Automatic shutdown: after 10 min
Method: colorimetric adaptation of the phenol red method
delivery and shipping
delivery and shipping
- Shipping via UPS Express
- Next working day delivery
- Safely packed in a styrofoam box
Here are the instructions for unpacking and acclimating Berghia snails:
- Berghia snails are specialized feeders that only eat Aiptasia sp. It is important to always have enough Aiptasia for them or to pass them on in a timely manner.
- They are less suitable for larger aquariums with many fish, but if necessary they can be placed in the evening with the lights turned off using the transfer pipette.
- Direct contact between snails and Aiptasia should be avoided as this can lead to the death of the snails. The snails must make contact with the Aiptasia themselves.
- Berghia snails are ideal for controlling Aiptasia in small aquariums with peaceful fish or in separate "treatment aquariums".
- The snails delivered are not yet fully grown and can, if necessary, be fed in a separate aquarium until they reach the desired size.
- To open the Styrofoam box, simply pull on the blue ribbon. The insulated packaging does not need to be removed from the box. Allow the temperatures to equalize for around 10 minutes by placing the unopened transport container in the aquarium.
- Carefully unscrew the white lid anti-clockwise. The transport container may be full of sea water and individual snails may be stuck to the lid. If this happens, place the lid in a small bowl of sea water from the aquarium.
- Use the transfer pipette provided to remove the snails from the container and transfer them to the aquarium. Repeat the process with all snails.
- The insulated box is recyclable and can be disposed of as recyclables or used for other purposes.
- In case of a complaint, we ask for an email on the day of arrival with a photo of the snail in the transport cup for a replacement.