CO2 Monitor | Temperature | Humidity

CO2 Monitor | Temperature | Humidity – Carbon Dioxide, Temperature & Humidity Monitor

Take control of your grow room 🌱 with precise environmental monitoring. This compact device delivers accurate readings for CO2, temperature, humidity, and dew point—helping you optimise plant health and maximise yields.

Since CO2 is heavier than oxygen, place the meter low in your grow tent for the most accurate readings.

Why You’ll Love It 💡

• 🔋 Long-lasting power – Up to 1 year operation with 3 × AAA batteries

• 📊 Large, easy-to-read display – Shows CO2, humidity, dew point & air temperature

• ⏱ Track trends easily – One-touch review of 8-hour average, 24-hour average & 24-hour peak values

• 🔒 Secure design – Anti-theft and anti-modification features

• 🌐 Reliable sensor technology – NDIR (non-dispersive infrared) CO2 sensor for precision readings

• 😀 Visual air quality indicators – 3 customisable emoji icons

• 🔔 Custom alerts – Buzzer/alarm with optional mute

• 📖 Simple setup – Manual includes CO2 calibration instructions

Boost Plant Growth 🚀

Increasing CO2 levels in your grow room supports more efficient photosynthesis, resulting in:

• 🌿 Faster vegetative growth

• 🌸 Stronger, quicker flowering

• 💡 Improved light-to-energy conversion

Specifications 📐

• CO2 Range: 0–9999 ppm

• CO2 Accuracy: ±50 ppm ±3% (400–5000 ppm)

• Response Time: <5 mins

• Warm-up Time: 10 sec

• Temperature Range: 0–50°C

• Temperature Accuracy: ±0.6°C

• Humidity Range: 5–95% RH

• Humidity Accuracy: ±5% RH

• Dew Point Range: -68.2–50°C

• Display: 60 × 44 mm LCD

• Unit Size: 86 × 86 × 25 mm

• Weight: 115 g

• Power Supply: 3 × AAA batteries

• Eco Mode Battery Life: >1 year

• Package Includes: Meter, batteries, hanging screw set, manual, box

Please choose your products carefully, as A-Grade Hydroponics reserves the right not to accept returns based on either an incorrect choice or a change of mind.

However, we love happy customers so contact us with your query and we will do our best to accommodate you. If you have queries about a product you would like to purchase, please contact us to discuss your concerns before you buy.

A-Grade Hydroponics will honour all manufacturers warranties subject to the terms and conditions of those manufacturers. However warranty does not cover abuse, neglect, improper care, loss or damage from incorrect usage.

Warranty claims will be processed at A-Grade Hydroponics' discretion as a refund, repair or replacement. If products need to be returned to us for warranty purposes e-mail us at grow@agradehydroponics.com with the receipt/invoice number, date of purchase and a brief description of the fault (including photographs where possible). We will then issue you with a product return number.

All returns should be in original packaging and have the receipt/invoice number, date of purchase, and product return number enclosed. The product return number should also be written on the outside of the package for easy identification purposes.

A-Grade Hydroponics has a strict 'no returns' or refunds policy for liquid products, like nutrients, additives, gels, calibration fluids etc, so please choose these items carefully.

*All orders are dispatched in unmarked boxes to maintain your privacy.*

DISPATCH AND DELIVERY

Orders are shipped via Australia Post or shipping platform Big Post. Orders are generally dispatched on Tuesday, Wednesday and Friday. Please allow for additional delivery time for remote areas. If you require express delivery, please contact our sales representatives at 03 9555 6667 or email grow@agradehydroponics.com to obtain a quote. 

Couriers will attempt delivery to the specified address. If no one is home to receive the delivery, the couriers will leave your parcel somewhere safe. If there is no safe place, re-delivery or collection will be offered by the carrier.

Due to the increasing frequency of online fraud and theft, we are unable to ship to P.O. Boxes and Parcel Lockers.

SHIPPING COSTS

All freight charges are calculated on weight, dimensions and location. We are committed to keeping shipping charges at a minimum and do not charge handling fees.

Please note: Freight costs are subject to change. Regional areas, large and bulky orders, and tail-lift delivery occasionally incur an additional levy. Should shipping costs need to be amended it will be to reflect the actual charges, and not incur additional ‘shipping and handling’ fees. We will notify you if this rare situation occurs.

A-Grade Hydroponics reserves the right to cancel the order if shipping costs become prohibitive and customers will be issued a full refund.

PAYMENT

All payments must be cleared before dispatch. Payments can be made online via PayPal, AfterPay, PayID or Electronic Funds Transfer. Payments can also be accepted via credit card by phoning 03 9555 6667.

Please allow at least 24 hours for payments to clear.

FULFILMENT OF ORDERS

You will be notified immediately if an item is permanently unavailable, with options for a replacement item at equal or higher value, refund or store credit.

All refunds will clear within 3-5 business days. Store Credits will be issued as an electronic Gift Card to be used online or in-store.

DANGEROUS AND PROHIBITED GOODS

These goods are available for in-store collection only.