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Apollo Valves (1)
Ashcroft (23)
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Bluefin (53)
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Burnham (1)
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Dwyer (72)
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Measures
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Celsius (114)
Fahrenheit (150)
Pressure (364)
Temperature (1)
Vacuum (1)

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Back (151)
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Flush (2)
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Panel (2)
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Surface (2)
Tee (2)
Top (11)
Wall (1)

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1-1/2" (17)
2" (64)
2-1/2" (157)
3" (50)
3-1/8" (6)
3-1/4" (2)
3-1/2" (13)
4" (74)
4-1/2" (19)
6" (1)

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1/8" (3)
1/4" (48)
1/2" (69)
3/4" (50)
1" (1)

Max Pressure (PSI)
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5 (5)
10 (1)
15 (17)
30 (35)
50 (2)
55 (2)
60 (37)
75 (29)
100 (62)
150 (3)

Max Temp (F)
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60°F (1)
100°F (1)
110°F (2)
120°F (6)
130°F (2)
140°F (27)
150°F (2)
158°F (1)
160°F (1)
176°F (14)

Min Temp (F)
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-60°F (1)
-58°F (1)
-50°F (1)
-40°F (11)
-22°F (1)
-4°F (17)
0°F (25)
20°F (35)
30°F (37)
32°F (16)

Max Temp (C)
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40°C (2)
50°C (7)
60°C (3)
66°C (1)
70°C (6)
80°C (4)
90°C (4)
95°C (4)
115°C (17)
120°C (22)

Min Temp (C)
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-50°C (2)
-45°C (1)
-40°C (9)
-30°C (1)
-20°C (20)
-18°C (2)
-15°C (7)
-10°C (1)
-5°C (6)
0°C (34)

Review Score
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(102)
(36)
(16)
(7)
(7)

Price Range
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$1 to $5 (9)
$5 to $10 (38)
$10 to $15 (72)
$15 to $20 (29)
$20 to $25 (44)
$25 to $30 (49)
$30 to $35 (29)
$35 to $40 (24)
$40 to $45 (19)
$45 to $50 (18)

Boiler Temperature & Pressure Gauges

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Product Image of D82LFB, 1/4" NPT, 2-1/2" Dial, Industrial Pressure Gauge with Lower Mount (0-160 PSI)
$23.46 each
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Product Image of 5" 5AS Straight Thermometer with Thermowell (30°F to 240°F & 0°C to 115°C)
$50.29 each
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Product Image of 2-1/2" PET Economy Maximum Pointer Water Test Pressure Gauge (0-160 PSI)
$18.05 each
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Product Image of 3/4 NPT Brass Thermowell with 3-1/2" Stem, 2-1/2" Insertion
$14.16 each
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Product Image of 75 PSI, 260 F Boiler Gauge - Bottom Mount
$33.66 each
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Product Image of AX9, 3-1/2" Industrial Thermometer with Aluminum Case (30-Degree (F) to 240-Degree (F))
$56.43 each
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Product Image of 3" TTD Back Mount Dual Scale Tridicator (0-250 PSI and 70°F-320°F)
$38.05 each
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Product Image of Universal Sensor Probe (10,000 Ohm)
$13.08 each
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Product Image of BX9, 9" Scale, 3-1/2" Adjustable Angle Industrial Thermometer (0-Degree (F) to 100-Degree (F))
$56.43 each
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Product Image of D82LFB, 1/4" NPT, 4" Dial, Industrial Pressure Gauge with Lower Mount (0-100 PSI)
$61.99 each
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Product Image of E-Z Trialtimeter, 1/4" NPT Short Shank Boiler Gauge (0-61 PSI, 30-Degree -250-Degree (F))
$26.87 each
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Product Image of 2-1/2" PEM Dual Scale Economy Pressure Gauge (0-200 PSI)
$11.17 each
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Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Back NPT w/ Brass Internals (0-100 PSI)
$30.12 each
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Product Image of 3-1/2" TIM Industrial 9IT Thermometer w/ Valox Case (0°F to 160°F & -15°C to 70°C)
$68.17 each
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Product Image of 3" TTD Back Mount Dual Scale Tridicator (0-200 PSI and 70°F-320°F)
$58.53 each
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Product Image of 1/2" NPT STP Brass Test Plug (-40°F to 302°F & -40°C to 150°C)
$9.14 each
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Product Image of 1/2" NPT, 3" Face, Temperature & Pressure Gauge (Tridicator)
1/2" NPT, 3" Face, Temperature & Pressure Gauge (Tridicator)
SKU: TR30-CB2-60/250
Boshart
SKU: TR30-CB2-60/250
Brand: Boshart
(6)
$25.92 each
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Product Image of 2-1/2" PLP Steel Low Pressure Gauge, 1/4" Bottom NPT w/ Brass Internals (0-5 PSI)
$61.20 each
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Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Bottom NPT w/ Brass Internals (0-200 PSI)
$24.22 each
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Product Image of 2.5" Thermometer w/ 1/2" Sweat Connection (32-Degree (F) to 250-Degree (F))
$9.62 each
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Product Image of 2" PET Economy Gas Test Pressure Gauge (0-30 PSI)
$13.25 each
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Product Image of D82LFB, 1/4" NPT, 2-1/2" Dial, Industrial Pressure Gauge with Lower Mount (0-200 PSI)
$23.47 each
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Product Image of 2.5" Steel Low Pressure Gauge (0-15" Water/OZ)
$62.50 each
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Product Image of 4" PEM Dual Scale Economy Pressure Gauge (0-100 PSI)
$31.59 each
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Product Image of 3-1/2" TSD Industrial Solar Digital Thermometer (-50°F to 320°F & -45°C to 160°C)
$140.19 each
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Product Image of 3" Bottom Mount Dual Scale Tridicator (0-75 PSI, 70-Degree to 320-Degree (F))
$32.54 each
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Product Image of 4.5" Contractor Pressure Gauge (0-100 PSI)
$34.04 each
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Product Image of 2.5" Hot Water Thermometer (30°F to 250°F)
$24.02 each
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Product Image of Gas Test Gauge Assembly (30 psi)
$17.91 each
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Product Image of 2.5" Hot Water Thermometer w/ 3/4" Sweat Well (32-Degree (F) to 250-Degree (F))
$9.82 each
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Product Image of 2-1/2" PLP Steel Low Pressure Gauge, 1/4" Bottom NPT w/ Brass Internals (0-32"WC)
$61.20 each
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Product Image of 3" TTD Back Mount Dual Scale Tridicator (0-75 PSI and 70°F-320°F)
$49.93 each
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Product Image of 3.5" Lead Free Industrial 9IT Thermometer with Valox Case (30°F to 240°F)
$113.60 each
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Product Image of 3" Bottom Mount Dual Scale Tridicator (0-200 PSI, 70-Degree - 320-Degree (F))
$30.91 each
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Product Image of 3/4" NPT Lead Free Brass Thermowell with 3-1/2" Stem, 1-7/10" Insertion
$18.44 each
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Product Image of BX9, 9" Scale, 3-1/2" Adjustable Angle Industrial Thermometer (0-Degree (F) to 160-Degree (F))
$56.43 each
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Product Image of 1/8" MIP Air Tank Valve
1/8" MIP Air Tank Valve
SKU: 1838102
Wal-rich
SKU: 1838102
Brand: Wal-rich
$5.01 each
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Product Image of 3/4" FHT 0-300 psi Lazy Hand Water Test Gauge
$13.37 each
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Product Image of 75 PSI, 260 F Boiler Gauge - Back Mount
$39.96 each
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Product Image of 2" Lower Mount Pressure Gauge (0-60 psi)
$4.62 each
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Product Image of 3-1/8" Tridicator, 1-21/32" Well, Back Mount Temperature & Pressure Gauge (0-75 PSI, 60-Degree (F) to 320-Degree (F))
$20.89 each
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Product Image of 2-1/2" PET Economy Water Test Pressure Gauge (0-160 PSI)
$14.54 each
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Product Image of 3/4" TIW Brass Industrial 9IT Thermowell w/ 2-1/2" Insertion Length
$20.77 each
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Product Image of 1/4" NPT, 2.5" Face, Temperature & Pressure Gauge (Tridicator), 3-3/8" Well
$27.90 each
BOX UP & SAVE 14%
$119.55 box of 5
$23.91 each
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Product Image of 2000 Series Differential Pressure Gauge (0 - 2" W.C.)
$84.45 each
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Product Image of Strap On Thermometer
Strap On Thermometer
SKU: 1722030
Wal-rich
SKU: 1722030
Brand: Wal-rich
$24.17 each
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Product Image of 4.5" PCT Contractor Pressure Gauge (30"Hg-0-30 PSI)
$41.21 each
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Product Image of 2" PEM Dual Scale Economy Pressure Gauge (0-200 PSI)
$12.22 each
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Resources
FAQs, Manuals & Videos
Articles
More About Temperature & Pressure Gauges
Temperature and pressure gauges are used to measure the temperature and pressure of a gas or liquid in a system. Stainless steel is the most common material used for these gauges, followed by brass. Gauges are available in either dry or liquid filled models. A liquid filled gauge has a long lifespan because it has fewer moving parts and the thick oil which fills it leaves no room for humid ambient air to enter. Water cannot condense and accumulate in a liquid filled gauge, as it can in a dry gauge.

Some gauges contain illuminated dials and digital readouts for better visibility. A gauge with temperature compensation has the ability to correct any ambient temperature variation. Differential gauges allow for differential pressures, and duplex gauges indicate dual pressures on a single dial. Tridicators are common pressure gauges that measure temperature, pressure, and altitude. Snap Well thermometers measure the ambient temperature of a desired location.