PM3 Dissolved Oxygen Module sensor installed and operated according to

installed and operated according to our instructions

The price is just about double of standard GFO however you only need to use half as much which equals out in the long run

Compact In-Sump Skimmer for Aquariums up to 700 Gallons

Up to 8 WiFi Devices

PM3 Dissolved Oxygen Module sensor installed and operated according toLets say your Apex system detects low dissolved oxygen in your aquarium, you could have pumps on standby waiting to be activated when levels hit below optimal as well as send you an email or text message. Add the Dissolved Oxygen Module: PM3 to your Apex to allow continuous real time monitoring of your reef tanks dissolved oxygen levels. Real time monitoring of dissolved oxygen in reef aquarium Module has extra Temp Probe port (sold separately) I O