System of Measurement System of Measurement |
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For Use With For Use With |
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Overall Height Overall Height |
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Mount Type Mount Type | Show |
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Mount Type Mount Type | Hide |
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Maximum Pressure Maximum Pressure |
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Material Material |
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Shape Shape |
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![]() | Straight |
Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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Seal Material Seal Material |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Shatter-Resistant Oil-Level and Temperature Indicators




The nylon body and window make these indicators shatter resistant. Use them to simultaneously monitor hydraulic fluid or oil level and temperature. All are UV resistant for use outdoors.
Indicators with a glass-filled nylon or aluminum guard, or no guard, mount from the inside of your tank through unthreaded holes. Glass-filled nylon guards are more impact resistant than aluminum guards.
Indicators with a steel guard have a lower profile and can withstand higher pressure than other indicators. Mount them from the outside of your tank through threaded holes.
Temp. Range, °F | Thermometer Temp. Range, °F | ||||||||||||
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Connection Ctr.-to-Ctr. | Overall Ht. | Window Ht. | Body Wd. | For Max. Tank Wall Thick. | Max. Pressure | Min. | Max. | Min. | Max. | Window Material | Includes | Each | |
Nylon Plastic | |||||||||||||
For 1/2" Hole Dia. (2 Holes) | |||||||||||||
3" | 4 1/4" | 2 1/16" | 13/16" | 1/2" | 10 psi @ 70° F | -65° | 210° | 30° | 210° | Nylon Plastic | Mounting Nuts | 0000000 | 000000 |
5" | 6 1/4" | 4 1/16" | 13/16" | 1/2" | 10 psi @ 70° F | -65° | 210° | 30° | 210° | Nylon Plastic | Mounting Nuts | 0000000 | 00000 |
10" | 11 1/4" | 9 1/16" | 13/16" | 1/2" | 10 psi @ 70° F | -65° | 210° | 30° | 210° | Nylon Plastic | Mounting Nuts | 0000000 | 00000 |
Nylon Plastic with Aluminum Guard | |||||||||||||
For 1/2" Hole Dia. (2 Holes) | |||||||||||||
3" | 4 3/4" | 2 1/16" | 15/16" | 1/2" | 10 psi @ 70° F | -65° | 210° | 30° | 210° | Nylon Plastic | Mounting Nuts | 0000000 | 00000 |
5" | 6 3/4" | 4 1/16" | 15/16" | 1/2" | 10 psi @ 70° F | -65° | 210° | 30° | 210° | Nylon Plastic | Mounting Nuts | 0000000 | 00000 |
10" | 11 3/4" | 9 1/16" | 15/16" | 1/2" | 10 psi @ 70° F | -65° | 210° | 30° | 210° | Nylon Plastic | Mounting Nuts | 0000000 | 00000 |
Nylon Plastic with Glass-Filled Nylon Plastic Guard | |||||||||||||
For 1/2" Hole Dia. (2 Holes) | |||||||||||||
5" | 6 3/4" | 4 1/16" | 15/16" | 1/2" | 10 psi @ 70° F | -65° | 210° | 30° | 210° | Nylon Plastic | Mounting Nuts | 0000000 | 00000 |
Nylon Plastic with Steel Guard | |||||||||||||
For 1/2" Hole Dia. (2 Holes) | |||||||||||||
5" | 6 3/8" | 3 7/8" | 13/16" | 1/2" | 50 psi @ 70° F | -40° | 210° | 0° | 220° | Nylon Plastic | __ | 0000000 | 00000 |
Through-Wall High-Pressure Oil-Level and Temperature Indicators

Mount these indicators from the inside of your tank through unthreaded holes. Use them to simultaneously monitor hydraulic fluid or oil level and temperature in pressurized applications.
For technical drawings and 3-D models, click on a part number.
Temp. Range, °F | Thermometer Temp. Range, °F | ||||||||||||
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Connection Ctr.-to-Ctr. | Overall Ht. | Window Ht. | Body Wd. | For Max. Tank Wall Thick. | Max. Pressure | Min. | Max. | Min. | Max. | Window Material | Includes | Each | |
Aluminum | |||||||||||||
For 1/2" Hole Dia. (2 Holes) | |||||||||||||
4" | 5 5/8" | 2 1/2" | 1 1/2" | 3/4" | 125 psi @ 70° F | -40° | 220° | 50° | 300° | Glass | Mounting Nuts | 0000000 | 000000 |
5" | 6 5/8" | 3 1/2" | 1 1/2" | 3/4" | 125 psi @ 70° F | -40° | 220° | 50° | 300° | Glass | Mounting Nuts | 0000000 | 00000 |
6" | 7 5/8" | 4 1/2" | 1 1/2" | 3/4" | 125 psi @ 70° F | -40° | 220° | 50° | 300° | Glass | Mounting Nuts | 0000000 | 00000 |
7" | 8 5/8" | 5 1/2" | 1 1/2" | 3/4" | 125 psi @ 70° F | -40° | 220° | 50° | 300° | Glass | Mounting Nuts | 0000000 | 00000 |
8" | 9 5/8" | 6 1/2" | 1 1/2" | 3/4" | 125 psi @ 70° F | -40° | 220° | 50° | 300° | Glass | Mounting Nuts | 0000000 | 00000 |
12" | 13 5/8" | 10 1/2" | 1 1/2" | 3/4" | 125 psi @ 70° F | -40° | 220° | 50° | 300° | Glass | Mounting Nuts | 0000000 | 00000 |
Press-Fit Through-Wall Sights

Press these sights into a hole in your tank wall; no additional mounting nuts are needed. They mount from the outside. The shatter-resistant plastic domed window allows you to view tank contents from multiple angles.
For technical drawings and 3-D models, click on a part number.
Temp. Range, °F | |||||||||||
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For Hole Dia. | OD | Window Dia. | For Max. Tank Wall Thick. | Max. Pressure | Min. | Max. | For Use With | Window Material | Seal Material | Each | |
Zinc-Plated Brass | |||||||||||
1 1/4" | 1 1/4" | 1" | 9/32" | Not Rated | 0° | 160° | Water, Hydraulic Fluid, Diesel Fuel | Plastic | Neoprene Rubber | 0000000 | 000000 |
1 1/2" | 1 1/2" | 1 1/4" | 9/32" | Not Rated | 0° | 160° | Water, Hydraulic Fluid, Diesel Fuel | Plastic | Neoprene Rubber | 0000000 | 00000 |
2" | 2" | 1 5/8" | 9/32" | Not Rated | 0° | 160° | Water, Hydraulic Fluid, Diesel Fuel | Plastic | Neoprene Rubber | 0000000 | 00000 |
Through-Wall Sights


Mount these sights from the inside of your tank and secure with a lock nut. They install through unthreaded holes in tank walls.
Sights for dark liquid have a reflector that makes liquid easy to see, especially in low-light conditions.
303 stainless steel sights are more corrosion resistant than aluminum sights.
For technical drawings and 3-D models, click on a part number.
Temp. Range, °F | ||||||||||||
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For Hole Dia. | Window Dia. | Hex Size | For Max. Tank Wall Thick. | Max. Pressure | Min. | Max. | For Use With | Window Material | Seal Material | Includes | Each | |
For Clear Liquid | ||||||||||||
Aluminum | ||||||||||||
3/4" | 1/2" | 7/8" | 1/4" | 50 psi @ 70° F | -40° | 180° | Water, Hydraulic Fluid | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1" | 3/4" | 1 1/8" | 1/4" | 50 psi @ 70° F | -40° | 180° | Water, Hydraulic Fluid | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1 1/4" | 1" | 1 3/8" | 1/4" | 25 psi @ 70° F | -40° | 180° | Water, Hydraulic Fluid | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1 7/8" | 1 3/8" | 2" | 1/4" | 25 psi @ 70° F | -40° | 180° | Water, Hydraulic Fluid | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
2 3/8" | 1 7/8" | 2 5/8" | 1/4" | 10 psi @ 70° F | -40° | 180° | Water, Hydraulic Fluid | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
303 Stainless Steel | ||||||||||||
5/8" | 7/16" | 13/16" | 3/16" | 125 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
3/4" | 9/16" | 15/16" | 3/16" | 125 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1" | 13/16" | 1 1/4" | 3/16" | 125 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1 1/4" | 1" | 1 1/2" | 1/4" | 100 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1 1/2" | 1 5/16" | 1 3/4" | 7/16" | 50 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1 3/4" | 1 9/16" | 2" | 7/16" | 50 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 000000 |
2 1/4" | 1 15/16" | 2 1/2" | 7/16" | 50 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 000000 |
For Dark Liquid | ||||||||||||
Aluminum | ||||||||||||
3/4" | 1/2" | 7/8" | 1/4" | 50 psi @ 70° F | -40° | 180° | Water, Hydraulic Fluid | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1" | 3/4" | 1 1/8" | 1/4" | 50 psi @ 70° F | -40° | 180° | Water, Hydraulic Fluid | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1 1/4" | 1" | 1 3/8" | 1/4" | 25 psi @ 70° F | -40° | 180° | Water, Hydraulic Fluid | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1 7/8" | 1 3/8" | 2" | 1/4" | 25 psi @ 70° F | -40° | 180° | Water, Hydraulic Fluid | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
2 3/8" | 1 7/8" | 2 5/8" | 1/4" | 10 psi @ 70° F | -40° | 180° | Water, Hydraulic Fluid | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
303 Stainless Steel | ||||||||||||
5/8" | 7/16" | 13/16" | 3/16" | 125 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
3/4" | 9/16" | 15/16" | 3/16" | 125 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1" | 13/16" | 1 1/4" | 3/16" | 125 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1 1/4" | 1" | 1 1/2" | 1/4" | 100 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 00000 |
1 1/2" | 1 5/16" | 1 3/4" | 7/16" | 50 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 000000 |
1 3/4" | 1 9/16" | 2" | 7/16" | 50 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 000000 |
2 1/4" | 1 15/16" | 2 1/2" | 7/16" | 50 psi @ 70° F | 0° | 225° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Buna-N Rubber | Lock Nut | 0000000 | 000000 |