The simplest and most effective reservoir monitor you could ever own!
The Bluelab Guardian monitor provides 24 hour continuous reading for pH, conductivity (EC/ppm 700/TDS/CF) and temperature within a nutrient solution to ensure a successful crop.
Designed for indoor use, the Guardian Monitor can be mounted on a wall or hung on a support bar. Set up your reservoir, place the pH and conductivity probes in the solution, then adjust and glance!
Simply set high and low alarm states – if the solution moves away from the ideal range, the display flashes. A quick look at the monitor will let you know when your nutrient solution needs adjusting.
- Plant-safe green LEDs
- Large easy to read displays
- No calibration required for conductivity and temperature
- Simple push button pH calibration
- Selectable values for conductivity and temperature
- Flashing high and low alarms
- Greater tolerance to RF / electronic interference provided
- Water resistant design
- International power supply included
- Replaceable double junction pH probe included
- Adjustable display brightness
- Non-volatile memory (setting retained when power lost)
Please contact us directly within 30 days of your purchase if you believe there is an issue with your product purchased. We can be contacted at email@example.com OR phone us on 06 927 4266 OR phone / text 027 453 5132. Unfortunately we cannot guarantee a refund or exchange after 30 days of your purchase date.
To be eligible for a return, your item must be unused, in the same condition that you received it, and in the original packaging.
If the returned product is found to have no fault or has been damaged due to inappropriate use, The Hydro Centre Ltd reserves the right to refuse to provide a refund or exchange.
Gift cards are exempt from being returned.
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 5 working days.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale or clearance items cannot be refunded.
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at firstname.lastname@example.org or call / text us on 027 453 5132 and we will notify you of the process going forward.
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.
If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and they will find out about your return.
Goodwill returns policy
We believe in 100% customer satisfaction. If you are not satisfied with your purchase, we offer a 7-day goodwill return policy. Please email us at email@example.com and we will notify you of the process going forward.
To qualify, your item must be unused, in the same condition that you received it, and in the original packaging.
You will be responsible for paying for your own shipping costs for returning your item. Any shipping costs associated with the purchase are non-refundable.
You should consider using a trackable shipping service or purchasing shipping insurance. We do not guarantee that we will receive your returned item. Any unreturned items will not receive a refund or exchange.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.