Skip to product information
1 of 2

The Red Sea ReefSense pH and Temperature Probe is a digital, dual-parameter probe for continuous monitoring of aquarium pH and water temperature through ReefControl Lite or Pro.

The pH sensor uses an automatically temperature-compensated, double-junction design with dual external ceramic junctions. This construction is designed to improve durability and service life in the demanding environment of a reef aquarium.

Both pH and temperature readings are available in real time through the ReefBeat app. Users can establish desired and acceptable operating ranges, review historical graphs, receive notifications and complete guided calibration procedures.

When used with compatible control equipment, pH and temperature can operate independently as automation triggers. The readings can control compatible 12V DC equipment through ReefControl or AC-powered equipment through a connected ReefControl Power.

Key Features

  • Simultaneously monitors pH and temperature
  • Compatible with ReefControl Lite and Pro
  • Automatic temperature compensation
  • Double-junction pH sensor
  • Dual ceramic external junctions
  • Digital signal processing within the probe
  • Real-time ReefBeat readings
  • Customizable alerts and acceptable ranges
  • Interactive historical graphs
  • Guided semi-automatic calibration
  • Calibration data stored within the probe
  • Supports remote Bluetooth operation with the optional USB-C Connector
  • Can provide separate pH- and temperature-based equipment control

Accuracy and Precision

  • pH accuracy: ±0.05 pH
  • pH reading precision: 0.01 pH
  • Temperature accuracy: ±0.05°C

Compatibility

Requires a Red Sea ReefControl Lite or ReefControl Pro controller.

ReefControl Power is required to control standard AC-powered equipment based on the probe’s readings.

Red Sea

ReefSense pH and Temperature Probe

ReefSense pH and Temperature Probe

Earn 1% back in rewards points! Eligible equipment and supplies also count toward lifetime VIP rewards. Unlock up to 10% off eligible livestock for life.

See Your VIP Progress Below ↓
SHIPPING SAVINGS

Checking shipping eligibility...

FREE Ground Shipping $0.00 / $100.00
FREE Overnight Shipping $0.00 / $399.00
View Shipping Details →

Estimated using qualifying items already in your cart plus the selected product and quantity. Ground-only merchandise counts toward free Ground Shipping, but not free Overnight Shipping. Livestock, aquariums, drop-ship products, local-pickup-only items, and shipping exclusions do not count. Final shipping eligibility and rates are determined at checkout.

Regular price $119.00 USD
Regular price Sale price $119.00 USD
Sale Sold out
Shipping calculated at checkout.

Low stock: 1 left

Quantity
✦ LUSH REEF REWARDS

Every Purchase Brings You Closer
to Lifetime Livestock Savings.

Your eligible equipment and supply purchases help you unlock permanent VIP discounts on eligible fish, corals, and invertebrates. See how this product and your current cart could move you closer.

TORCH VIP
5% OFF
LIVESTOCK FOR LIFE
$2,500 qualifying lifetime spend
HOLY GRAIL VIP
10% OFF
LIVESTOCK FOR LIFE
$10,000 qualifying lifetime spend
🎁 Earn Rewards Points on Every Eligible Purchase
1% back on eligible aquariums, equipment & supplies
5% back on eligible fish, corals & invertebrates
VIP discounts stack with eligible livestock sale prices. Auction exclusions apply.
Your Estimated Lifetime VIP Progress
Current Lifetime Spending Log in to view
Already in Your Cart $0.00
This Product (Selected Quantity) $119.00
Estimated Lifetime Spend After Purchase Calculating...
Next VIP Goal $2,500.00
Estimates include your existing cart plus an additional purchase of the selected product and quantity. Current lifetime spending is based on Shopify customer history and may differ from Appstle's qualifying lifetime spending.
Projected VIP Progress 0%
Calculating your estimated rewards...
Checking estimated rewards points...
Explore All Lush Reef Rewards Benefits →
Figures are estimates before applicable checkout adjustments. Some products, discounts, redemptions, and promotions may be excluded. Rewards points and VIP eligibility are determined by Appstle under Lush Reef Rewards program terms. Lifetime VIP discounts apply to eligible livestock, not dry-goods purchases. VIP tiers are not cumulative.
View full details