Hanna Instruments GroLine HI9814 Waterproof Portable pH/EC/TDS/Temperature Meter

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Hanna InstrumentsSKU: HY-167001

Sale price$ 329.95 Regular price$ 349.99
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Hanna Instruments GroLine HI9814 Waterproof Portable pH/EC/TDS/Temperature Meter

Hydroponics & Aquaponics Nutrient Testing • Quick Cal Calibration • IP67 Rugged • 3-in-1 Amplified Probe

The Hanna Instruments GroLine HI9814 is a slim, lightweight, waterproof portable meter built specifically for growers who want fast, dependable testing of hydroponic nutrient solutions. Designed for hydroponics, aquaponics, and greenhouse cultivation, this all-in-one tester measures pH, conductivity (EC), TDS/ppm, and temperature with a single durable probe—so you can dial in feeding, prevent nutrient stress, and keep your reservoir stable.

With two-button operation, Quick Cal mode, and a selectable EC-to-TDS conversion factor (0.5 / 500 ppm or 0.7 / 700 ppm), the HI9814 makes professional nutrient monitoring simple for beginners and experts alike.

Why Growers Love the GroLine HI9814

✔ One Meter for pH + EC + TDS + Temperature

The included HI1285-7 amplified multiparameter probe combines:

  • Pre-amplified pH electrode
  • EC/TDS sensor for low-range nutrient monitoring
  • Built-in temperature sensor for compensated readings

This 3-in-1 design reduces setup time and keeps your readings consistent.

✔ Quick Cal = Faster Calibration with One Solution

Quick Cal mode lets you calibrate pH and EC/TDS using a single calibration solution—a huge time saver for routine maintenance. The meter also supports standard buffer calibration (pH 4.01, 7.01, 10.01) and EC calibration at 1.41 mS/cm.

✔ Waterproof, Grow-Room Tough (IP67)

Built for real-world cultivation environments, the IP67-rated body resists dust, splashes, spills, and drops—ideal for wet grow rooms, greenhouses, and on-the-go testing.

✔ Probe Condition Indicator = More Confidence

An on-screen diagnostic indicator helps confirm your probe is working properly, so you can trust the results before making nutrient adjustments.

✔ Long Battery Life + Smart Power Features

  • Up to 600 hours of continuous use (3 AAA batteries)
  • Low-battery warning below 10%
  • Auto shut-off selectable at 8 min, 60 min, or disabled

Built for Accurate, Stable Readings

The HI9814’s probe is designed specifically for nutrient solutions:

  • Retractable cloth junction (renewable): refresh the junction when readings slow by pulling out a small amount of cloth

  • Gelled electrolyte: stable performance with reduced maintenance

  • Quick Connect DIN connector: fast probe attachment/removal with a watertight seal

Key Specifications (Highlights)

pH Range -2.00 to 16.00 | Resolution: 0.01 | Accuracy: ±0.02 pH
EC Range 0.00 to 6.00 mS/cm | Resolution: 0.01 | Accuracy: ±2% FS
TDS Range 0–3000 ppm (500 CF) or 0–3990 ppm (700 CF) | Resolution: 10 ppm
Temperature Range -5.0 to 105.0°C (23 to 221°F) | Accuracy: ±0.5°C / ±1.0°F
ATC Automatic temperature compensation (β = 1.9%/°C)
IP Rating IP67
Battery 3 x AAA | ~600 hours

What’s Included

The HI9814 comes ready to use with everything you need in the box:

  • HI1285-7 multiparameter probe (pH/EC/TDS + temperature, 1 m cable)
  • Quick Cal solution sachets (3) (fresh single-use packets)
  • Agriculture electrode cleaning solution sachets (3)
  • 3 AAA batteries
  • Calibration certificates (meter + probe)
  • Instructions

Ideal For

  • Hydroponic reservoirs & nutrient tanks
  • Aquaponic systems
  • Greenhouse fertigation monitoring
  • Growers who want reliable pH + EC/TDS control for consistent yields

Order Confirmation

As soon as your order is placed, an order confirmation will be sent to the email address you used to place the order. This means we have received your order and payment. Payment is captured as soon as the order is placed. In rare cases, if the product is on backorder or unavailable, we will contact you and ask if you would like to wait for the product to become available, switch your product, or have your payment refunded. If the item is available for shipment we will submit the order for processing and arrange shipment. Please see current estimated lead times on the product page for each product.

Shipping

Most products ship within 1 to 3 business days. Some items might take longer as they are delivered from our warehouse in Vancouver. As soon as we receive your tracking number, we will send it over to you.

Free Shipping

Free shipping is available across all provinces throughout Canada for orders over 149$.

International Orders

Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or other couriers. Most quotes can be obtained at checkout. If not, you can email us at info@canadagrowsupplies.com for some more information on shipment. Items shipped internationally from the USA may have VAT, duties, taxes, and/or local charges due at delivery. These charges are the responsibility of the customer and not Canada Grow Supplies Inc.

Cancellations

If you need to cancel your order, we recommend reaching out to us ASAP. We charge a 2.9% (credit card), 3.5% (PayPal), 4.0% (PayPal International), 4.1% (American Express), or 6.5% (Shop Pay Installments or Sezzle) order cancellation fee after the order was received. We can accommodate most requests, but due to the different time zones and schedules that our warehouses ship from, sometimes the cancellation request may not reach the warehouse in time before the product ships. Once the item has been arranged to ship or has shipped, the package will be treated like a 'return' and is subject to ship-back fees and restocking fees. If you purchased 'Route Package Protection', this can not be refunded after the order has shipped.

Returns

In order to make sure you are completely satisfied, we can send you a return label within 14 days of receiving the order. This is to guarantee that you are happy with the product. Some products might require a 10-25% restocking fee. Please visit our full return policy.

Why Canada Grow Supplies?

We’re glad you clicked here. It means you’d like some reassurance and we totally understand that.

1. We’ve had thousands of shipped orders and satisfied customers.

We started our business in 2020 with the intention of creating a one-stop shop for growing supplies without letting customers wait for their orders. We saw the potential to serve customers of this industry way better than they’ve been treated in the past.

2. We’re a small, Canadian, family-owned business.

Our small team overlooks every customer and their orders to ensure they are satisfied with their products. We answer the phone and website chat, and if we don’t, we get back to you within 6 hours or less! We even throw in some freebies at random.

3. Free Discreet Shipping Available in Canada

We offer free shipping on all orders over 149$ Canada-wide. Many companies have a weight limit for free shipping, we don’t!

4. 100% Lowest Price on the Market - Price Match Guarantee

We keep the best prices on the market at all times. If the price respects the companies’ lowest retail price, we will definitely price-match any other Canadian website.

5. Reliable International Shipping

Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or similar couriers. Go through the checkout process to receive a shipping quote or contact us if a shipping quote is not available at checkout.

6. Easy financing and interest-free payments

Finance your purchase within minutes without paying interest!

Sezzle: Buy what you want today and pay for it over four installments, interest-free. Look for the Sezzle button at checkout. Get approved up to $2,500.

7. We are authorized resellers with manufacturer’s warranty

You will buy confidently from us since only sell new, official products (no used items or clones). All warranties are new are 100% honored through the respective manufacturer.

8. Safe, Secure and Discreet Transactions

We accept major credit cards and debit cards, PayPal, Google Pay, Apple Pay, Sezzle, bank transfers, and money orders. All card payments are processed through our encrypted SSL security processing system. Your identity is always protected.

9. Hassle-free returns

Just in case your purchase was not up to your standards, we offer return shipping if you are not 100% satisfied for any reason

10. Route Package Protection

Adding Route Package Protection to your order at checkout means that your order is protected against being lost, damaged, or stolen. In the unfortunate instance that you experience one of these inconveniences, you can report an issue with Route and they will work with you to make sure you get the resolution you prefer.

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