Tekmar 561Manual

Especially made for testing all reduced pressure zone backflow prevention devices. Enables accurate testing of "zone" and relief valve opening differential, fouled check valves, or similar problems that visual inspections cannot locate. Maximum pressure is 175 psi.

Tekmar 561Amazon

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Tekmar562

Tekmar® WiFi Thermostat, NTC Thermistor Sensor, 1 Stage, 15 to 30 VAC/VDC, Touchscreen Display, Vertical Mounting, NEMA 1 Enclosure, White, 3 in W x 15/16 in D x 4-5/8 in H, Import

Especially made for testing all reduced pressure zone backflow prevention devices. Enables accurate testing of "zone" and relief valve opening differential, fouled check valves, or similar problems that visual inspections cannot locate. Maximum pressure is 175 psi.