Bluelab pH Pen – Waterproof Handheld pH & Temperature Meter | Double-Junction Probe | Made in NZ ASP-20 The HI98309 comes already calibrated

The HI98309 comes already calibrated

HI70300G is a high quality storage solution designed with hydroponics

These high quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability

Submerge the probe in MA9070 zero oxygen solution and stir for about 2-3 minutes

Probe Type: Detachable platinum electrodes & pH glass sensor with reference tube

Bluelab pH Pen – Waterproof Handheld pH & Temperature Meter | Double-Junction Probe | Made in NZ ASP-20 The HI98309 comes already calibratedBluelab pH Pen Waterproof Handheld pH & Temperature Meter The go to pH pen for growers worldwide. The Bluelab pH Pen (SKU: PENPH) is a compact, hardy, and easy to use handheld meter that delivers accurate pH and temperature readings in any nutrient solution. With a double junction pH probe, 0. 1 pH resolution, simple 2 point calibration, and a fully waterproof design that floats its the essential measurement tool for every growing setup, from home