Relays Number of Cycles
Relay 1 50,000
Relay 2 300,000
Relay 3 420,000
Relay 4 530,000
Relay 5 250,000


Ultimately, we went with Relay 2, 300,000+ cycles would be the best for our product and the applications that it would be used with. This allowed the product to be the most cost effective, and best quality for what we were looking for. The Research and Development process can be tedious, and long but it makes it worth it when we can sell our customers products that we 110% stand behind. If you have any questions regarding our digital temperature switch or would like to test out one of our switches in your application please contact us!

Send us your application details today!

Bulb & Capillary Thermostats

Original equipment manufacturers worldwide use thermostat switches designed and manufactured by STEMCO, a Division of Senasys. No matter which style or model you choose, all of the capillary thermostat switches operate using the same physics. A fluid is encapsulated in a metal and when the temperature changes the fluid either expands or contracts. This fluid change moves a diaphragm which is in touch with a snap action switch and either opens or closes a circuit.

Ambient Compensation

Our capillary thermostats can be ambient compensated to offset the differential in temperature which keeps our thermostat controls more accurate as it’s environment changes.

Custom Options

Capillary thermostat switches built by Senasys can also be built to customer specifications. This insures you get the exact control you want without paying for features you don’t need.