Hydrolevel fuel smart HyrdoStat temperature control for gas-fired boilers. The 3200-Plus features three function control: temperature limit, low water cut off, and boiler reset.

Hydrolevel Safguard model 550SV low water cut-off with manual reset, test button, and short probe. This unit interrupts power in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation and lock-out function without lowering the water level.

Hydrolevel Safguard model 650SV low water cut-off with automatic reset, test button, and short probe. This unit interrupts power immediately in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation without lowering the water level.

Hydrolevel Safguard model 550 low water cut-off with manual reset and test button. This unit interrupts power in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation and lock-out function without lowering the water level.

Hydrolevel Safguard model 650 low water cut-off with automatic reset and test button. This unit interrupts power immediately in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation without lowering the water level.

Hydrolevel Safguard model 170 low water cut-off for 160 psi. This LWCO is 120 VAC, has a switching capacity of 5.8 FLA and 34.8 LRA, and has SPDT switch contacts. The 170 Series interrupts power immediately in a low water condition and automatically restarts the burner on return of normal water level.

Hydrolevel Safguard model 170SV low water cut-off with short probe for 160 psi. This LWCO is 120 VAC, has a switching capacity of 5.8 FLA and 34.8 LRA, and has SPDT switch contacts. The 170 Series interrupts power immediately in a low water condition and automatically restarts the burner on return of normal water level.

Hydrolevel Safgard 500 24 volt low water cut off with a manual reset, burner circuit test button, and LED indicating lights for hot water boilers.

Hydrolevel Safgard 400 24 volt low water cut off with 15-second burner off delay, 30-second burner on delay, automatic rest, and low water indicating light for steam boilers.

Hydrolevel Safgard 550P 120 volt low water cut off with long nut, manual reset, burner circuit test button, and LED indicating lights for hot water boilers.

Hydrolevel Safgard 450 120 volt low water cut off with 15-second burner off delay, 30-second burner on delay, automatic rest, and low water indicating light for steam boilers.

Hydrolevel Safgard 750 120 volt low water cut off with a manual reset, 30-second lock-out and LED indicating lights for hot water boilers.

Hydrolevel Safgard 750SV 120 volt low water cut off with a manual reset, short probe, 30-second lock-out and LED indicating lights for hot water boilers.

Hydrolevel Cyclegard CG400-2090 24 volt low water cut off with intermittent level test (preformed every 20 minutes for 90 seconds), 15-second burner off delay, 30-second burner on delay, and low water indicating light for steam boilers.

Hydrolevel Cyclegard CG400-1090 24 volt low water cut off with intermittent level test (preformed every 10 minutes for 90 seconds), 15-second burner off delay, 30-second burner on delay, and low water indicating light for steam boilers.

Hydrolevel Cyclegard CG450-1560 120 volt low water cut off with intermittent level test (preformed every 15 minutes for 60 seconds), 15-second burner off delay, 30-second burner on delay, and low water indicating light for steam boilers.

Hydrolevel Safgard 24SV 24 volt low water cut off with automatic rest, a short probe, and alarm contacts for hot water boilers.

Hydrolevel VXT-24 24 volt water feeder with digital feed counter, programmable feed delay setting, programmable feed amount settings, manual feed button, underfeed protection, and lock-out flood protection.

Hydrolevel VXT-120 120 volt water feeder with digital feed counter, programmable feed delay setting, programmable feed amount settings, manual feed button, underfeed protection, and lock-out flood protection.

Hydrolevel standard 3/4" NPT probe measuring 2-7/8" long.

Hydrolevel 3/4" NPT probe with a longer nut (1-11/16") for thicker boiler jackets.

Hydrolevel 3/4" NPT remote mount probe with junction box and cover.

Hydrolevel 3/4" NPT probe with short inside dimension that is designed for installation in standard reducing tee and short clearance installations.