Bluelab's 2.77EC Conductivity Solution, pH 7.0 and pH 4.0 Calibration Solutions are now available in 20ml sachets.

pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). The 2.77EC Conductivity solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe. Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.

Upgrade your air comfort with our wireless connection full kit. Enjoy the convenience of controlling your air system wirelessly, providing you with a seamless experience. Say goodbye to tangled cords and complicated installation. Upgrade now for easy and hassle-free air control.

The Air Comfort Bluetooth Temperature and Humidity Sensor is the only hygrometer you'll ever need for your grow room or grow tent. With cloud connectivity, hourly/daily/weekly/monthly graphs, and a free iOS & Android app, it gives you complete visibility of your growing environment — from anywhere. Available from Hawthorne Horticulture, your trusted hydroponic shop in Leicester and online across the UK. Free delivery on orders over £50. Specifications: - Battery life: 1 year - Detection range: 10m free field - Temperature: -25°C to 45°C (±0.5°C accuracy at 25°C) - Humidity: 0–100% (±4.5% accuracy at 70%) - Adjustable measuring intervals: 5–40 mins - Internal memory: 3 months / 4,032 instances Features: - Free app for iOS & Android - Cloud data export to Excel - Set custom warning levels - 12 or 24 hour clock - Personalise icons and room names - Includes carabiner for easy mounting in grow tents Essential for any grower using grow tent kits UK or complete LED grow tent kits UK. Pair with our hydroponic nutrients UK range for a fully optimised indoor grow. Shop at hawthornehorticulture.com.

Pipette Used to accurately measure small amounts of liquids. Available in 3mm and 5mm sizes.

500ml Mixing & Measuring Jug

Quality product with easy to read metric and imperial measurements

Well designed spout for easy pouring

Broad base & sturdy handle - suitable for both mixing and measuring 

Efficiently regulate pH levels with the 500 / pH Dosing Pump. This top-of-the-line pump accurately doses your aquarium or hydroponic system with a high efficiency of 500 parts per million (ppm). Keep your water pH balanced and your plants and fish healthy with this reliable dosing pump.

This 50/60ml syringe is a versatile and precise tool for accurate medication administration. With a capacity of up to 60ml, it allows for efficient and controlled dosing. Made with high-quality materials, it ensures durability and reliability. A must-have for medical professionals and patients alike.

High quality disposable syringe with rubber plunger.

Expertly measure and administer precise amounts of medication with our 1ml syringe. Designed for accurate dosing, this syringe provides easy and efficient delivery of medication. Its compact size and clear markings make it ideal for medical professionals and individuals alike.

High quality disposable syringe with rubber plunger.

High quality disposable syringe with rubber plunger.

High quality disposable syringe with rubber plunger.