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Ashcroft (23)
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Measures
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Celsius (143)
Fahrenheit (179)
Pressure (408)
Temperature (1)
Vacuum (3)

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Back (155)
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Surface (2)
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1-1/2" (16)
2" (65)
2-1/2" (166)
3" (50)
3-1/8" (6)
3-1/2" (36)
4" (107)
4-1/2" (32)
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1" (4)

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1/8" (60)
1/4" (211)
1/2" (115)
3/4" (57)
1" (3)

Max Pressure (PSI)
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5 (9)
10 (2)
15 (18)
30 (35)
50 (2)
55 (2)
60 (39)
75 (31)
100 (65)
150 (3)

Max Temp (F)
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110°F (2)
120°F (6)
140°F (58)
160°F (1)
240°F (30)
248°F (10)
260°F (2)
130°F (5)
158°F (8)
176°F (18)

Min Temp (F)
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-4°F (46)
30°F (53)
-50°F (1)
60°F (14)
70°F (21)

Max Temp (C)
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115°C (18)
120°C (29)
121°C (11)
150°C (13)
160°C (29)
200°C (2)
260°C (3)
40°C (2)
50°C (7)
550°C (1)

Min Temp (C)
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-10°C (1)
-15°C (7)
-18°C (3)
-20°C (20)
-40°C (9)
-45°C (1)
-50°C (2)
-5°C (6)
0°C (49)
10°C (10)

Review Score
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(100)
(36)
(16)
(7)
(7)

Price Range
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$1 to $5 (9)
$5 to $10 (33)
$10 to $15 (77)
$15 to $20 (23)
$20 to $25 (48)
$25 to $30 (49)
$30 to $35 (30)
$35 to $40 (25)
$40 to $45 (17)
$45 to $50 (17)

Boiler Temperature & Pressure Gauges

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Product Image of 1/8" Air Vent Isolator (Male x Female)
1/8" Air Vent Isolator (Male x Female)
SKU: 1818MF
Raven
SKU: 1818MF
Brand: Raven
$8.75 each
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$162.33 box of 21
$7.73 each
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Product Image of LFDPTG-3 3" Pressure & Temperature Gauge (0-50 psi)
$52.47 each
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Product Image of LFDPTG-1 3" Bottom Entry Pressure & Temperature Gauge (0-200 psi)
$107.14 each
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Product Image of 2-1/2" PEM Dual Scale Economy Pressure Gauge (0-30"Hg Vacuum/kpa)
$12.02 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-LM2-60/250
Boshart
SKU: TR30-LM2-60/250
Brand: Boshart
(3)
$28.28 each
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Product Image of 2.5" Tridicator Temperature and Pressure Gauge, Back Mount (0-75 PSI and 70°F-320°F)
$28.55 each
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Product Image of 1" Leak Test Gauge (0-30 PSI)
1" Leak Test Gauge (0-30 PSI)
SKU: TG-30-1
DiversiTech
SKU: TG-30-1
Brand: DiversiTech
(3)
$21.36 each
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Product Image of Dual Zone Digital Temperature Gauge with Two Universal Sensor Probes
$49.75 each
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Product Image of 3/4" Pressure Gauge Assembly with SharkBite Max Tee
$35.81 each
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Product Image of 2" PEM Dual Scale Economy Pressure Gauge (0-100 PSI)
$7.61 each
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Product Image of 1/4" NPT STP Brass Test Plug (-40°F to 302°F & -40°C to 150°C)
$8.29 each
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Product Image of 4" Stainless Steel Dual Scale Liquid Filled Gauge, Bottom Mount (0-100 PSI)
$35.72 each
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Product Image of 4.5" Contractor Pressure Gauge, Bottom Mount (0-100 PSI)
$22.97 each
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Product Image of LFDPTG-3 3" Pressure & Temperature Gauge (0-200 psi)
$94.72 each
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Product Image of 2" Dual Scale Economy Pressure Gauge, Bottom Mount (0-200 PSI)
$6.53 each
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Product Image of Gas Test Manifold Coupling w/ Pressure Gauge & Snifter Valve (0-15 PSI)
$10.57 each
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Product Image of 3" Back Mount Dual Scale Tridicator (0-75 PSI, 70-Degree (F) to 320-Degree (F))
$30.02 each
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Product Image of 2.5" Tridicator, Extended Back Mount Temperature and Pressure Gauge (0-75 PSI, 70-Degree (F) - 320-Degree (F))
$24.92 each
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Product Image of 2" PET Economy Gas Test Pressure Gauge (0-15 PSI)
$14.28 each
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Product Image of D82LFB, 1/4" NPT, 2-1/2" Dial, Industrial Pressure Gauge with Lower Mount (0-100 PSI)
$23.47 each
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Product Image of 3-1/2" TIM Industrial 9IT Thermometer w/ Valox Case (30°F to 240°F & 0°C to 115°C)
$99.99 each
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Product Image of 2" Pressure Gauge w/ 1/8" NPT Connection for 5350 Valves
$20.62 each
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Product Image of 2.5" Stainless Steel Liquid Filled Gauge, Bottom Mount, w/ Brass Internals (0-15 PSI)
$13.70 each
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Product Image of 3/4" NPT Brass Thermowell with 3-1/2" Stem, 1-7/10" Insertion
$9.51 each
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Product Image of 2-1/2" Liquid Filled Dial Pressure Gauge Lead Free (0-160 psi)
$13.79 each
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Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Bottom NPT w/ Brass Internals (0-60 PSI)
$27.81 each
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Product Image of Strap-On Pipe Thermometer for 3/8"-1.5" Pipe, 0-248F
$25.17 each
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$48.44 box of 2
$24.22 each
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Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Bottom NPT w/ Brass Internals (0-30 PSI)
$25.42 each
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Product Image of 2-1/2" PEM Dual Scale Economy Pressure Gauge (0-100 PSI)
$12.52 each
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Product Image of 2-1/2" Liquid Filled Pressure Gauge w/ Lower Mount (0-60 psi)
$10.70 each
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Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Bottom NPT w/ Brass Internals (0-100 PSI)
$33.15 each
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Product Image of 2" PET Economy Gas Test Pressure Gauge (0-100 PSI)
$16.23 each
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Product Image of 4.5" PCT Contractor Pressure Gauge (0-30 PSI)
$28.59 each
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Product Image of FLi Color Coded Vacuum Gauge 1/8" NPT
$10.20 each
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Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Bottom NPT w/ Brass Internals (0-160 PSI)
$25.97 each
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Product Image of 2" Dual Scale Economy Pressure Gauge, Bottom Mount (0-60 PSI)
$6.86 each
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Product Image of 4.5" Contractor Pressure Gauge, Bottom Mount (0-60 PSI)
$21.17 each
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Product Image of 2" Dual Scale Economy Pressure Gauge, Bottom Mount (0-160 PSI)
$6.52 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 2" Economy Gas Test Pressure Gauge (0-60 PSI)
$10.76 each
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Product Image of 1/4" Threaded Tridicator Dual Pressure / Temperature Gauge
$32.50 each
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Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Bottom NPT w/ Brass Internals - Lead Free (0-100 PSI)
$45.82 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 3-1/2" Adjustable Angle Light-Powered Digital Thermometer (-40-Degree (F) to 300-Degree (F) & -40-Degree (C) to 150-Degree (C))
$77.40 each
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Product Image of 2-1/2" Stainless Steel Liquid Filled Gauge, 1/4" Bottom NPT w/ Brass Internals (0-300 PSI)
$25.42 each
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Product Image of 1/4" NPT, 2.5" Face, Temperature & Pressure Gauge (Tridicator)
1/4" NPT, 2.5" Face, Temperature & Pressure Gauge (Tridicator)
SKU: TR25-CB1-60/250
Boshart
SKU: TR25-CB1-60/250
Brand: Boshart
(8)
$25.82 each
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$113.45 box of 5
$22.69 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 3" TTD Back Mount Dual Scale Tridicator (0-250 PSI and 70°F-320°F)
$38.05 each
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Resources
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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.