Neptune Systems PM1 Probe Module - pH, ORP, & Temperature Terrarium Accessories durable bird feeder made from

durable bird feeder made from recycled poly-lumber

Powered by plants with natural essential oils of cedarwood and peppermint

Dimensions BFA Item # Poly-Filter 4 x 8 x

CycleGuard preserves the biological balance of your aquarium through independent media replacement

Available in small

Neptune Systems PM1 Probe Module - pH, ORP, & Temperature Terrarium Accessories durable bird feeder made fromThe PM1 probe module is just what you need if you want to monitor pH or ORP in your tank. And, there is an added bonus, you get an extra temperature port as well as six I O switch inputs for use on ATO, feed buttons, or whatever else you may come up with. This module is perfect for someone that wants to add an additional pH or ORP port to their Apex System. Monitor Control pH or ORP, and temperature 6 digital inputs for float switches, water on floor