Bluelab pH Pen

The ultimate handy solution for measuring pH!

Plants get their nutrition from minerals but they can only get all the right minerals they need if certain conditions are right.

A key factor that affects food uptake is whether your solution is acid or alkaline. We measure this in pH.

The Bluelab pH Pen provides a compact quick and handy way to manage the success of your crops to ensure maximum uptake of nutrients. Teamed with our Bluelab EC Pen you have a handy, convenient and accurate system for ensuring optimum plant growth and health.

• Measures pH and temperature
• Selectable units for °C & °F
• Backlit LCD display
• Double junction probe (not replaceable)
• Successful pH calibration indicator
• Hold function
• Low battery warning
• Fully waterproof
• Auto off function
• Automatic temperature compensation

Free delivery on orders over £60*
- UK Mainland only

Standard Delivery £4.95
- Heavy / Large item surcharge £2 per item
- 1-3 Days**
- UK Mainland only
Express Delivery £8.95*
- Next Working Day**
- UK Mainland only
Scottish Highlands £15.95*
- 2-5 Days**

*Can not be used with Heavy / Large items
**If ordered on a working day before 2pm cut off 

Please See Delivery and Returns page for more details.