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Hikari Accuprobe Hydrometer

Online Only Item

Regular price $24.67 $27.97

A highly accurate, easy to use, wide range specific gravity meter for marine aquarium use. Designed to eliminate inaccuracy issues common with competitive quick-dip hydrometers while helping you take a water sample from a greater.... Show Details

A highly accurate, easy to use, wide range specific gravity meter for marine aquarium use. Designed to eliminate inaccuracy issues common with competitive quick-dip hydrometers while helping you take a water sample from a greater depth that is free of the negative impact of surface influences.

Durable Construction For Extended Life

  • "Dry Hands" design avoids contamination of aquarium or water
  • Takes a more "true" water saple at a 6 inch depth, avoiding inaccurate surface sampling
  • Accurate to ±0.001 specific gravity and salinity (PPT) measurements
  • Auto temperature-correcting design to give a temperature-corrected reading in warm water aquariums - 68°F to 85°F (20°C to 30°C)
  • Readings can be taken in or outside the aquarium
  • Self-leveling, hanging device collects perfect samples
  • Scientifically verified design offers the ultimate in accuracy

Note: Before using for the first time, to season the measurement needle, fill the hydrometer with saltwater from your aquarium and allow it to sit full of this water on a level surface for 24 hours. This rehydrates the calibration disc to its original specs and calibration standard and will provide the most accurate readings going forward.

  1. Submerge hydrometer approximately 6 inches to water level line.
  2. When water reaches the fill line level (top of dam) remove hydrometer and place on a level surface to take the most accurate reading.
  3. Avoid air bubble adherence to the pointer as this will result in inaccurate, higher than normal readings. Should air bubbles collect on pointer, gently tap hydrometer to dislodge them before taking your reading.
  4. Read specific gravity on inside scale and salinity in parts per thousand (PPT) on the outside scale. A recommended specific gravity of 1.020 to 1.023 is desirable for most marine aquariums.
  5. Rinse with fresh water after each use to maintain optimum accuracy.

Salt deposits may accumulate on pointer and will result in inaccurate readings. If salt crystallizes inside your unit, soak it in lukewarm water or vinegar for 30 minutes, rinse with fresh water and allow to air dry. Rinse again with warm fresh water before next use.

Each AccuProbe® Hydrometer is assigned an individual certified calibration number which is your assurance the unit was finely tuned prior to shipping from our production facility to provide the most accurate reading possible.

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Shipping

Petland ships within Canada, Monday through Friday (excluding statutory holidays). Orders made online after Friday at 11 am CDT will ship the following business day (subject to daily order volume and warehouse availability). When considering delivery times, please allow 1-2 business days to process your order after the order is placed. Courier delivery times do not include the day the order is picked up from our warehouse. 

Petland will happily ship to your home and/or office. Normally, we use Canada Post, Purolator & Canpar for delivery.  "Free Shipping" will usually be sent through Canpar Ground service or Purolator ground service. Canpar Ground & Purolator Ground services do not have guaranteed delivery times and the shipping times will only be estimates.

Changes to our shipping policy due to the Canada Post Labour Negotiations:

The Canadian Union of Postal Workers (CUPW) has launched a nationwide overtime ban for employees in both the Urban and RSMC (Rural and Suburban Mail Carriers) bargaining units. This is a legal strike action and means that CUPW-represented employees will refuse to work overtime across the company. As a result, Canada Post will continue operating but customers may experience delays.

We will continue to ship out orders using Canada Post if you have chosen this as your method of shipping.

We advise you to stay informed by checking Canada Post's website for updates.

As of August 27, 2025, Canada Post stated on their website:

For the last 21 months, Canada Post has negotiated in good faith with CUPW to reach new collective agreements that begin to address the company’s challenges while minimizing the impact on its employees. On August 20, Canada Post received counter-offers from CUPW in response to the company’s best and final offers of May 28, 2025.

The company and CUPW met today at the bargaining table. After many months of difficult negotiations and mounting losses, the Corporation was looking for workable solutions to be brought to the table that would get the parties closer to a resolution and end the uncertainty for employees and customers.

Unfortunately, CUPW has either maintained or hardened its position on many items and added new demands, and the gap between the parties remains substantial. Several proposed items would increase the Corporation’s operational costs. While the union’s offers included some part-time employee component to address weekend delivery, CUPW’s proposed approach remains unaffordable, problematic and complex to manage.

After carefully reviewing CUPW’s comprehensive offers over the past few days, the Corporation today urged the union to revisit its offers to align with the realities confronting the company. We remain open to reviewing and discussing amended proposals.

Both parties need to agree on an approach that addresses the Corporation’s challenges, supports its people, and starts to secure the company for employees and customers. We are ready to make Canada Post an organization that better meets the needs of all Canadians, while building a financially sustainable future for the company. At the Industrial Inquiry Commission, Canada Post shared urgent changes needed to help put the organization on a solid path for future success.

Canada Post remains committed to reaching new collective agreements through the bargaining process. We’ll continue to keep our employees and all Canadians informed about the negotiations and the urgent need to respond to the company’s challenges.

In the event that there is a Canada Post national work stoppage:

We will only be shipping through Canpar or Purolator. "Free Shipping" will be sent through Canpar Ground service or Purolator Ground service. Canpar Ground & Purolator Ground services do not have guaranteed delivery times, and the shipping times will only be estimates. If you are shipping the order to your business or workplace, please include the business name in the shipping address. Unfortunately, Canpar will not deliver to rural locations (see link further down).
Our website will still offer Canada Post shipping as an option.  However, if you choose this method of shipping, it will not leave our warehouse until after the Canada Post strike is resolved.

If you are shipping the order to your business or workplace, please include the business name in the shipping address.  Unfortunately, Canpar will not deliver to rural locations.  For a complete list of these postal codes, click HERE

Orders may be subject to cancellation or require additional confirmations for the following instances due to the risk of fraud:

  • The Billing and Shipping addresses are different, and the shipping address is not a Business.
  • Orders with international billing addresses

Orders that include "special order" items will not be shipped until the "special order" item arrives in our warehouse.

Please provide a street address if you choose "Free Shipping", Canpar or Purolator as your shipping method. 

  • If you have a PO Box, Rural Range Road, Township Road or Site land location address, you must choose Canada Post as your shipping method.
  • If your address is an apartment or condo, please include the buzzer number.
  • If you are shipping to your business or work, please indicate the company name.

Initial orders will require a signature upon delivery.  If you are placing your first order and want the shipment left at your front door with "no signature required", you can enter the request in "Special instructions for seller" on your cart page.  If you have already processed your order, you can email the request before noon of that business day through our "Contact Us" page.  If you place your order on the weekend, you must email the request by noon on Monday. If you have made the request, your subsequent orders will include the request for "no signature required". 

If you do not make the request and are not home to sign for the package, Canada Post, Canpar & Purolator will take the shipment to one of their locations where you can pick up your package. 

*Please note that neither Petland nor the delivery service is liable for any lost or stolen packages if you have requested the shipment to be left at your front door.

Risk of Loss and Shipping and Delivery:

All items purchased from Petland.ca are made pursuant to a shipment contract with a shipping carrier. This means that the risk of loss and title for such items pass to you upon delivery of the Products to the carrier. Products will be shipped to the address designated by you, if applicable, so long as such address is complete and complies with any shipping restrictions contained on the site. The time and location of delivery of the products to you is at the discretion of the carrier. 

Undeliverable packages:

Occasionally, we will have a package returned to us because it was undeliverable. When this occurs, we will issue a full refund for the price of the product plus taxes. Shipping charges are non-refundable.  If your order had "Free Shipping" the shipping charges incurred by Petland for your order will be deducted from the total product refund amount.

We can receive packages as undeliverable for the following reasons:

  • Missing house number, unit number or buzzer number
  • Missing street name, City, or province
  • Incorrect Postal Code
  • Failed delivery attempts or the item was not picked up from the local depot within 5-10 business days.
  • Refused by the recipient.

Petland.ca customers have toll-free access to highly trained customer service reps for solutions to a variety of pet questions. Contact us with any questions or concerns.