✨ Christmas Special: Get 35% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Explore Hanna Saltwater Magnesium Checker Hi-783 Starter Kit [YFxDIsdL]

$26.99 $86.99 -69%

Explore Hanna Saltwater Magnesium Checker Hi-783 Starter Kit [YFxDIsdL]The HI-783 pocket checker is a simple and accurate way to measure magnesium.Remove the Checker HC handheld colourimeter and accessories from the packing material and examine it carefully. If you require any fur

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Explore Hanna Saltwater Magnesium Checker Hi-783 Starter Kit [YFxDIsdL]

Explore Hanna Saltwater Magnesium Checker Hi-783 Starter Kit [YFxDIsdL]

The HI-783 pocket checker is a simple and accurate way to measure magnesium.


Remove the Checker HC handheld colourimeter and accessories from the packing material and examine it carefully. If you require any further information, please contact Hanna Instruments’ technical support team. Each HI783 is delivered in a case with a custom insert and is supplied with:

  • Sample cuvette and cap (2 pcs.)
  • Marine Magnesium reagent starter kit (reagents for 25 tests)
  • 1 mL graduated syringe and tip (1 pc.)
  • 5 mL syringe and tip with black printing (1 pc.)
  • 5 mL syringe and tip with blue printing (1 pc.)
  • 1.5V AAA Alkaline battery (1 pc.)
  • Instruction manual
  • Quick-reference guide

Note: Save all packing material until you are sure that the Checker HC handheld colourimeter works correctly. Any damaged or defective item must be returned in its original packing material with the supplied accessories.

The HI783 Marine Magnesium handheld checker is designed to determine the concentration of magnesium in saltwater aquariums.

The HI783 features a single-button operation system and is easy to use.
The large LCD is easy to read and the auto shut-off feature assures the battery will not be drained.


Specifications
Range 1000 to 1800 ppm Magnesium
Resolution 5 ppm
Accuracy ±5% of reading @ 25 °C (77 °F)
Light source Light Emitting Diode @ 610 nm
Light detector Silicon photocell
Method
Adaptation of the colourimetric EDTA method using calmagite indicator. The reaction between magnesium and the reagents cause a blue to violet tint in the sample.

Environment
0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing
Prepared sample cuvette (sample plus reagents) must be
18 to 28 °C (64 to 82 °F).*
Battery type 1.5V AAA Alkaline
Auto shut-off After 10 minutes of non-use
Dimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”)
Weight 64 g (2.3 oz)
Interferences Calcium below 300 ppm and above 500ppm
* Warm or cool prepared cuvettes if needed.

What Our Customers Say

January 23, 2026

Absolutely no complaints!

I'm amazed at the quality for this price point.

- Stella B..

January 23, 2026

Absolutely no complaints!

This product is a great find. The quality and performance are top-tier.

- Mercy N..

January 23, 2026

Absolutely no complaints!

This product is a brilliant choice. It's a solid, well-built device.

- Marianna N..

Write a Review

You Might Also Like

Discover more great products from our collection.

Allen-Bradley 194R-HS4E

Allen-Bradley 194R-HS4E

(165)
$44.99 $143.99 -69%
ASSOS UMA GT JERSEY ZEUS

ASSOS UMA GT JERSEY ZEUS

(613)
$27.99 $89.99 -69%
White Jersey Day Gown

White Jersey Day Gown

(454)
$20.99 $67.99 -69%
Foundry: Throw

Foundry: Throw

(142)
$70.99 $227.99 -69%
Milwaukee M12 Riveter

Milwaukee M12 Riveter

(199)
$49.99 $159.99 -69%
B6/WM3612H

B6/WM3612H

(281)
$34.99 $111.99 -69%

Copyright 2026 © technovaprecision.com

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY