start thermistor for sale, brand-new and used.

Easy level settings via keypad or laptop PC. Full mode control for pumps and alarms. Level indication, pump and fault status.

(On Products over $75) Hanna Instruments HI 8410 Dissolved Oxygen Controller with Extended Range and Analog Output New - Factory Authorized Distributor - Factory Warranty Extended range to 50 mg/L (ppm). Operational mode LED indicators Manual single poin

SAVE MONEY!! Up for auction is a gently used Beckett Aquasmart boiler control / aquastat This control was installed and used on my own boiler for a couple months before I switched it out for something different. I often test the products I use on my own equipment and when something new comes along I swap it out and sell the used one at a discount.

Used Dickson TH803. Does not include power supply but will run off of batteries.This unit has been fully tested and works as it should. Accuracy has not been verified.