Sensors, Transducers, Detectors"

Q-12NT Temperature Sensor Supplier: Harwil Corp Part Number Q-12NT Component Recognized (E85349) VERY LOW COST For use in water and mild acids and bases. * Temperature Sensor (Optional) NTC or RTD type thermisters. NTC or RTD type thermisters Accuracy 0° C to 70° C +/- 0.2° C (tolerances +/- 0.05° C to 1.0° C available) Miniature 1/2″ and 3/4″ NPT Units Available in SPDT, NO or NC Switch Operation NTC Thermistor or RTD Temperature Sensor True Flow Switch Performance Independent of Pressure and Temperature. Extremely Wide Operating Range: Down to 0.4 GPM in 3/4 inch pipe...... Q-12DS Pool and Spa Switches Supplier: Harwil Corp Part Number Q-12DS Component Recognized (E85349) True flow switch performance at a price competitive with pressure switches Specialized cables and connectors available for O.E.M. applications. Available in a clear one piece 3/4 inch barbed tee eliminating leakage and labor associated with glued fittings. Sense low flow independently of pressure or temperature. The Q-12DS bending blade design eliminates all sliding and pivoting friction and sticking problems, providing...... View Full Product Details >> Compare  Q-8DS Pool and Spa Switches Supplier: Harwil Corp Part Number Q-8DS Component Recognized (E85349) Sense low flow independent of pressure or temperature. Turn off power or gas to heater to prevent meltdown. Automatic reset - ready to go as soon as flow is re-established. For direct control of pump motors, heaters, solenoid valves, etc. UL component recognized (E85349) FLOW SWITCH MODEL Q-8DS SPDT, 1/2 hp, 15 AMP switching capacity @ 115 or 230 VAC ......