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Apollo Valves (1)
Ashcroft (23)
Azel Technologies (2)
Bluefin (53)
Boshart (29)
Burnham (1)
Caleffi (4)
DiversiTech (9)
Dwyer (72)
Hilmor Tools (2)

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

Mount
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Back (155)
Bottom (228)
Flush (2)
Lower (3)
Magnetic (2)
Panel (12)
Rotatable Bottom (21)
Surface (2)
Tee (1)
Top (12)

Dial Size
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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)
8-1/2" (1)
1" (4)

Connection Size
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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 1/4" LFTP-GA1 Gauge Adaptor, Lead Free
1/4" LFTP-GA1 Gauge Adaptor, Lead Free
SKU: 0123014
Watts
SKU: 0123014
Brand: Watts
$311.71 each
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Product Image of 3000MR Series Pressure Switch/Gauge (0 - 0.5" W.C.)
$684.20 each
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Product Image of Digital Thermometer
Digital Thermometer
SKU: 541-300
DiversiTech
SKU: 541-300
Brand: DiversiTech
$41.44 each
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Product Image of A3000 Series Pressure Switch/Gauge (0 - 5" W.C.)
$720.55 each
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Product Image of A3000 Series Pressure Switch/Gauge (0 - 15" W.C.)
$720.55 each
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Product Image of Photohelic Pressure Switch Gage (0 - 5 PSI)
$974.20 each
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Product Image of 1/2" HDPE FlameGaurd Test Plug w/ O-Ring
$2.36 each
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Product Image of 4" Stainless Steel Dual Scale Liquid Filled Gauge, 1/4" Back (0-400 PSI)
$91.06 each
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Product Image of 4" Stainless Steel Dual Scale Liquid Filled Gauge, 1/4" Bottom (0-60 PSI)
$166.30 each
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Product Image of 4" Stainless Steel Single Scale Liquid Filled Gauge, 1/2" Bottom (0-160 PSI)
$208.36 each
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Product Image of 4" Stainless Steel Liquid Filled Gauge, 1/2" Bottom w/ Brass Internals, Lead Free (0-60 PSI)
$114.93 each
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Product Image of 3/4" TIW Brass Industrial 9IT Thermowell w/ 1-3/4" Insertion, 3-1/2 Stem
$49.17 each
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Product Image of 1" TBM Bi-Metal Pocket Thermometer w/ 5" Stem (-40-Degree (F) to 160-Degree (F))
$19.19 each
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Product Image of 2" TBM Bi-Metal Pocket Thermometer w/ 2.5" Stem (50-Degree (F) to 400-Degree (F) & 10-Degree (C) to 200-Degree (C))
$52.72 each
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Product Image of 2" TBM Bi-Metal Pocket Thermometer w/ 2.5" Stem (50-Degree (F) to 500-Degree (F) & 10-Degree (C) to 260-Degree (C))
$52.72 each
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Product Image of 3" TBM Bi-Metal Pocket Thermometer w/ 2.5" Stem (-40-Degree (F) to 120-Degree (F) & -40-Degree (C) to 50-Degree (C))
$63.12 each
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Product Image of 3" TBM Bi-Metal Thermometer w/ 9" Stem (20°F to 240°F)
$78.58 each
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Product Image of 1" TBM Bi-Metal Pocket Thermometer w/ 5" Stem (0-Degree (F) to 250-Degree (F))
$19.19 each
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Product Image of 3" TBM Bi-Metal Pocket Thermometer w/ 2.5" Stem (0-Degree (F) to 250-Degree (F))
$63.12 each
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Product Image of LFDPTG-3 1" Pressure & Temperature Gauge (0-75 psi)
$111.26 each
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Product Image of 3.5" 1009AW Duralife Stainless Steel Case Pressure Gauge
3.5" 1009AW Duralife Stainless Steel Case Pressure Gauge
SKU: 351009AW02L-0/100
Ashcroft
SKU: 351009AW02L-0/100
Brand: Ashcroft
$148.07 each
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Product Image of 8.5" 1010 General Service Pressure Gauge
8.5" 1010 General Service Pressure Gauge
SKU: 851010A02L300
Ashcroft
SKU: 851010A02L300
Brand: Ashcroft
$586.97 each
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Product Image of 0-200 PSI Oil Switch
0-200 PSI Oil Switch
SKU: B424VXG6-0/200
Ashcroft
SKU: B424VXG6-0/200
Brand: Ashcroft
$449.60 each
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Product Image of Mounting Bracket with 2" U-Bolt
Mounting Bracket with 2" U-Bolt
SKU: A-287
Dwyer
SKU: A-287
Brand: Dwyer
$84.22 each
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Product Image of Rehvac Low Pressure Replacement Gauge (600 psi)
$40.10 each
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Product Image of DPG Series Digital Pressure Gauge (500 psi)
$351.71 each
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Product Image of DPG Series Digital Pressure Gauge (Vacuum to 0 psi)
$559.89 each
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Product Image of Rehvac Low Pressure Replacement Gauge (3000 psi)
$60.41 each
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Product Image of 1/4" DPG-1 Bottom Entry Pressure Gauge w/ 4" Dial - Lead Free (0-300 PSI)
$45.43 each
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Product Image of 4" 1008A Stainless Steel Case Pressure Gauge
4" 1008A Stainless Steel Case Pressure Gauge
SKU: 1001008A-02L-0-300
Ashcroft
SKU: 1001008A-02L-0-300
Brand: Ashcroft
$67.68 each
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Product Image of 2.5" 1009AW Duralife Stainless Steel Case Pressure Gauge
2.5" 1009AW Duralife Stainless Steel Case Pressure Gauge
SKU: 251009AW02L-0/200
Ashcroft
SKU: 251009AW02L-0/200
Brand: Ashcroft
$120.30 each
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Product Image of 2.5" 1009AW Duralife Stainless Steel Case Pressure Gauge
2.5" 1009AW Duralife Stainless Steel Case Pressure Gauge
SKU: 251009AW02L-0/30
Ashcroft
SKU: 251009AW02L-0/30
Brand: Ashcroft
$162.15 each
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Product Image of 2000 Series Differential Pressure Gauge (0 - 50" W.C.)
$82.68 each
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Product Image of 2000 Series Differential Pressure Gauge (0 - 10" W.C.)
$93.29 each
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Product Image of 3000MR Series Pressure Switch/Gauge (0 - 15" W.C.)
$684.20 each
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Product Image of 3000MR Series Pressure Switch/Gauge (0 - 5" W.C.)
$684.20 each
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Product Image of 1/2" NPT Schedule 40 Brass SSP Siphon
$279.65 each
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Product Image of 3" TBM Bi-Metal Pocket Thermometer (0-Degree (F) to 200-Degree (F) & -20-Degree (C) to 90-Degree (C))
$52.72 each
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Product Image of 3" TBM Bi-Metal Thermometer w/ 4" Stem (20°F to 240°F)
$78.60 each
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Product Image of 3" TBM Bi-Metal Pocket Thermometer w/ 4" Stem (0-Degree (F) to 200-Degree (F) & -20-Degree (C) to 90-Degree (C))
$63.12 each
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Product Image of 2-1/2" PEM Dual Scale Economy Pressure Gauge, Lead Free (0-600 PSI)
$23.79 each
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Product Image of 6" Lead Free Industrial 9IT Thermometer with Valox Case (30°F to 240°F)
$221.19 each
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Product Image of 3/4" TIW 316 SS Industrial 9IT Thermowell w/ 2-1/2" Insertion Length
$77.39 each
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Product Image of 3" TBM Bi-Metal Pocket Thermometer w/ 4" Stem (50-Degree (F) to 300-Degree (F) & 10-Degree (C) to 150-Degree (C))
$63.12 each
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Product Image of 3" TBM Bi-Metal Pocket Thermometer w/ 6" Stem (0-Degree (F) to 250-Degree (F) & -20-Degree (C) to 120-Degree (C))
$63.12 each
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Product Image of 3" TBM Bi-Metal Pocket Thermometer w/ 9" Stem (0-Degree (F) to 250-Degree (F) & -20-Degree (C) to 120-Degree (C))
$63.12 each
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Product Image of Pneumatic Temperature Gauge (0-100F)
$399.96 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.
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