The HYDROS Slim Temperature Sensor Probe is only 1.6" long and 0.32" wide. It's all-black solid waterproof IP68 construction is built for years of reliable service. It is a "set it and forget it" temperature monitor that requires no calibration or maintenance (except for perhaps the occasional cleaning). The HYDROS Slim Temperature Sensor Probe is included with the Control 2 or Control 4, so if you need a replacement or just want to add another temperature sensor to your system, you can easily do so for a very low price.

The Slim Temperature Sensor Probe has a long 79" cord with a GX12 aviation-style connector that plugs into any Sense Port on the Control 2, Control 4, and future HYDROS devices. You can use multiple temperature sensors on your system for safety and redundancy. For example, you can place one in your display aquarium and another in your sump. This can be helpful if your sump is in your basement while the display tank is on another floor of the house. The Slim Temperature Sensor Probe is completely submersible so you can easily place it somewhere discreet, like in the back of an all-in-one aquarium, in the overflow, or tucked away in one of the chambers of your sump.

The HYDROS Slim Temperature Sensor Probe is an easy and affordable way to prevent your aquarium water from becoming too cold or too hot. It monitors the water temperature in your aquarium so you can keep it within the safe zone for fish, coral, and inverts. The probe plugs into any Sense Port on a HYDROS device and does not require any additional power source.

You can configure the HYDROS app so that if the water temperature is higher than 82F or lower than 78F (for example), it can send you a mobile alert to let you know. You can also set it up so that outlets that have a heater, chiller, or fan plugged into them turn off when the temperature is outside the safe zone. Your heating and cooling equipment must be plugged into a HYDROS power source, like the Power 4 power strip or Smart Plug, for this sort of automation to occur.

The probe contains no moving parts that can fail. It provides peace of mind that your aquarium water temperature will never drift outside optimal ranges for aquatic life. Keep your aquarium water temperature in the safe zone with the HYDROS Slim Temperature Sensor Probe.

Features

• No moving parts
• Protects your aquarium from unsafe water temperatures
• You can use it to shut off a heater, chiller, or fan when the water temperature gets too hot or cold
• You can set it up so that you'll receive a mobile alert of your water temperature drifts outside the safe zone
• For freshwater and saltwater aquariums
• You can run multiple temperature sensor probes for safety/redundancy
• The HYDROS Slim Temperature Sensor Probes uses a GX12 aviation-style connector so the Control 2 and Control 4 maintain their IP65-rating (dust-tight and protected from water spray at any angle).
• Powered, monitored, and controlled by plugging into a Sense Port on the HYDROS Control 2 or Control 4. No additional power cord is required.
• Official CoralVue HYDROS Accessory

FREE SHIPPING OVER $119!*

- does not apply to livestock -

$11.99 FLAT RATE FOR LESS THAN $119.00 - CANADA WIDE!

*EXCEPTIONS:

• Any heavy or bulky items will incur a 100% charge of the actual shipping cost (valid for both Canada and the US). Heavy bulky items include (but are not limited to): salt, dry rock, sand, chillers, sumps, aquariums, stands, and some filter media.
• Frozen or perishable food can only be shipped via UPS Express. We have discounted the express shipping of these items to help the hobbyist out.
• Livestock is covered by a different shipping policy. To view the policy and further information regarding shipping livestock, click here.

GENERAL NOTES:

• We always make our best effort to ship your order via the carrier chosen during the check-out process; however, for some multi-piece shipments and/or remote destinations, we must reserve the right to use another carrier at our discretion (and without prior notice). If you require notice of any changes made to the carrier, please mention it in the special instructions during check-out.
• Upon request, we will ship your dry goods as per your specifications (courier, airlines, on your account, etc.).
• Quoted rates are the carriers live discounted shipping rates after adjusting for any/all shipping promotions.

Return Policy — Aquarium Equipment & Supplies

• All returns and/or exchanges must be made within 30 days of receipt of product.
• Before returning or exchanging any goods, you must contact J&L Aquatics to obtain a Return Merchandise Authorization (RMA). Items returned without prior authorization will be declined.
• Returned items must be unused, in original packaging, in as-new condition, and in perfect sellable condition. All returns are subject to inspection upon receipt.
• A 15% restocking fee applies to all online returns. This fee includes the cost of outbound shipping.
• Customer is responsible for return shipping costs on standard returns.
• Order cancellations made before shipping are not subject to a restocking fee.

Non-Returnable Items

• Special order items
• Clearance / final sale items
• Open box items

Regular sale items (non-clearance) are returnable within the 30-day return window, subject to our standard return conditions.

Defective, Warranty & DOA Items

• If you receive an item that is defective, not working, or dead on arrival (DOA), please contact us as soon as possible.
• Confirmed defective and warranty returns have no restocking fee and no Affirm fee. Customer does not pay return shipping — J&L Aquatics will provide a prepaid return label.
• All defective claims are subject to inspection. Items showing signs of customer damage, improper installation, or misuse are not covered under warranty.

Carrier Damage & Lost in Transit

• If your order arrives damaged by the carrier or is lost in transit, please contact us right away with:Photos of the damaged product (if applicable)Photos of the damaged box/packaging (if applicable)A description of the issue
• Important — Do not throw out any packaging! Please keep all original packaging, boxes, and packing materials. These are required to process your claim. Discarding packaging may affect our ability to resolve your claim.

High-Value Items ($100+)

• For items valued at $100 or more, customers must provide a return tracking number before a replacement will be shipped.

Affirm & Financing Orders

• Affirm or similar financing orders that are cancelled or returned in-store are subject to a 5% service charge. This covers the processing fee charged to us by the financing provider.
• The Affirm service charge does not apply to confirmed defective or warranty returns.