Alarm: Activates when reading is higher or lower than setpoint

or controlling industrial processes

"I've been using this controller for two years to monitor and adjust pH of hydroponic nutrient solutions

Fully waterproof to IP65

The reagents and the meter use the Adaptation of The Nessler Method

Milwaukee MA923B/5 Epoxy Industrial ORP Probe - 5m Cable, Platinum, BNC Connector 810666009183 Alarm: Activates when reading isHeavy Duty Epoxy Body Industrial ORP Probe with 5 Meter Cable The Milwaukee MA923B 5 is a rugged, industrial grade epoxy body ORP (Oxidation Reduction Potential) probe featuring a platinum sensing element designed for the most demanding testing environments. Compatible with Milwaukee BNC connector meters, this probe features an extra long 5 meter (16. 4 ft) cable for exceptional reach and an ultra durable epoxy resin body built to withstand extreme