Is the differential adjustment fixed or variable on this model

Smith 100208662 Probe is a critical safety component designed for low water cutoff (LWCO) systems in high-efficiency boilers and water heaters

technicians should check for 24VAC across the side terminals

ensuring optimal heat transfer and protecting the system from high-heat damage

and other control applications

Belimo ZS-150 Weather Shield Els PW 17895 Is the differential adjustment fixedThe Belimo ZS 150 Weather Shield is a rugged, NEMA 4X rated enclosure engineered specifically to protect Belimo actuators from harsh environmental conditions. Constructed from high impact, UV stabilized polycarbonate, this shield provides critical protection against rain, snow, dirt, and dust. Its transparent design ensures field technicians can perform visual inspections of the actuator position and operation without breaching the seal. Ideal for