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Bluelab® Combo Meter Plus

Bluelab® Combo Meter Plus — smart 3-in-1 with data logging. pH, EC, temperature with alerts & memory. Advanced nutrient management. Agrifirst India.

The Bluelab® Combo Meter Plus is the enhanced version of Bluelab's bestselling Combo Meter, adding smart features like data memory, calibration history tracking, and intelligent alert notifications. All the convenience of 3-in-1 pH/EC/temperature measurement with added intelligence for data-driven growing decisions.

Trusted by 500+ farmers
Expert support
Quality assured

4x faster

pH readings with Leap probe technology

3x more

versatility across substrates and solutions

2x easier

operation with backlit display and auto-off

Bluelab® Combo Meter Plus — Advanced 3-in-1 with Data Logging & Smart Alerts

Bluelab® Combo Meter Plus builds on the proven Combo Meter platform with enhanced smart features for data-driven nutrient management. Track calibration history, receive intelligent alerts when calibration is due, and access extended measurement data — all while maintaining the same reliable 3-in-1 pH/EC/temperature measurement that growers trust.

Plus Features

  • Calibration History — Tracks when the meter was last calibrated for quality assurance
  • Smart Alerts — Notification when calibration is due or probe needs attention
  • Enhanced Display — Improved screen with clearer readings and status indicators
  • All Combo Meter Features — 3-in-1 pH/EC/temperature, replaceable pH probe, waterproof design

Technical Specifications

pH Range0.0–14.0 pH (±0.1)
EC Range0–10.0 mS/cm (±2%)
Temperature0–50°C (±0.5°C)
Smart FeaturesCalibration tracking, smart alerts, enhanced display
pH ProbeReplaceable double-junction
WaterproofYes

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Common Questions

Frequently Asked Questions

What does the Bluelab Combo Plus Meter measure?
It measures pH, conductivity (EC, CF, PPM 500 & PPM 700), and temperature in nutrient solutions and growing substrates.
What is the difference between the Combo Meter and the Combo Plus Meter?
The Combo Plus Meter includes the Bluelab® Leap pH Probe, which allows direct pH measurements in soil, coco coir, Rockwool, and other growing media without needing extractions.
How do I use the Bluelab Combo Plus Meter?
Insert the Leap pH probe directly into the root zone or nutrient solution. Dip the conductivity sensor into the solution. Read the values on the backlit LCD screen.
Does the Combo Plus Meter need calibration?
pH calibration is required using a simple two-point process. The meter will remind you when recalibration is due. Conductivity and temperature are factory calibrated, so no calibration is required.
Can I measure pH in soil with this meter?
Yes! The Leap pH probe is designed to measure pH directly in soil, coco coir, and other growing media, making it perfect for precision farming.
What type of batteries does the Combo Plus Meter use?
It runs on 2x AAA alkaline batteries, which are included.
How does the auto-off function work?
The meter automatically turns off after a period of inactivity to preserve battery life.
How do I clean and maintain the Bluelab Combo Plus Meter?
Can I measure pH in soil with this meter? Yes! The Leap pH probe is designed to measure pH directly in soil, coco coir, and other growing media, making it perfect for precision farming.Rinse the probe after every use with clean water. Use Bluelab pH Probe Cleaner to remove build-up. Store the pH probe in Bluelab KCl storage solution to maintain accuracy and lifespan.
What should I do if my pH readings are inaccurate?
Recalibrate using pH 4.0 and pH 7.0 buffer solutions. Check the probe for damage or dryness.
Is the Bluelab Combo Plus Meter waterproof?
While splash-resistant, the meter should not be submerged in water.

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Our Office Agrifirst Lucknow (Registered Office)

Plot No E-7, Industrial Area, Kanpur - Lucknow Rd, near Audi Service Center, Sarojini Nagar, Lucknow, Uttar Pradesh 226401, INDIA


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Email Us info@agrifirst.in