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Apollo Valves (1)
Ashcroft (23)
Azel Technologies (2)
Bluefin (53)
Boshart (29)
Burnham (1)
Caleffi (4)
DiversiTech (10)
Dwyer (72)
Hilmor Tools (2)

Measures

Celsius (114)
Fahrenheit (150)
Pressure (364)
Temperature (1)
Vacuum (1)

Mount

Back (151)
Bottom (220)
Flush (2)
Magnetic (2)
Panel (2)
Rotatable Bottom (21)
Surface (2)
Tee (2)
Top (11)
Wall (1)

Dial Size

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)

Connection Size

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

Max Pressure (PSI)

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

Max Temp (F)

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)

-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)

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)

-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

(101)
(37)
(15)
(7)
(7)

Price Range

$1 to $5 (8)
$5 to $10 (38)
$10 to $15 (73)
$15 to $20 (29)
$20 to $25 (45)
$25 to $30 (46)
$30 to $35 (32)
$35 to $40 (22)
$40 to $45 (20)
$45 to $50 (18)

Boiler Temperature & Pressure Gauges

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Product Image of Magnehelic Differential Pressure Gage (0 - 5 psi)
$131.24 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 1/2" M x F Test Plug with 3" Port Extensions
$171.24 each
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Product Image of 2.5" Steel Low Pressure Gauge, Back Mount (0-5 psi/kPa)
$73.74 each
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Product Image of 2000 Series Differential Pressure Gauge w/ Adjustable Signal Flag (0 - 1" W.C.)
$103.13 each
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Product Image of LFDPTG-3 1" Pressure & Temperature Gauge (0-75 psi)
$111.25 each
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Product Image of Magnehelic Differential Pressure Gage (0 - 30.0" W.C.)
$70.62 each
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Product Image of 3/4" TIW Brass Industrial 9IT 6-3/4" Thermowell w/ 2-1/2" Insertion Length
$98.23 each
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Product Image of 2.5" 1008AL Stainless Steel Case Pressure Gauge (Liquid Filled)
2.5" 1008AL Stainless Steel Case Pressure Gauge (Liquid Filled)
SKU: 631008AL-02L-0/15
Ashcroft
SKU: 631008AL-02L-0/15
Brand: Ashcroft
$62.23 each
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Product Image of Horizontal Refrigerator/Freezer Analog Thermometer
$18.96 each
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Product Image of Temperature Gauge for LEGIOMIX Mixing Valve
$22.49 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 3/4" TIW 304 SS Industrial 9IT Thermowell w/ 2-1/2" Insertion Length
$57.98 each
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Product Image of Differential Pressure Gauge (0 - 1.5 kPa)
Differential Pressure Gauge (0 - 1.5 kPa)
SKU: 2000-1.5KPA
Dwyer
SKU: 2000-1.5KPA
Brand: Dwyer
$82.68 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 2.5"  1490 Low Pressure Diaphragm Gauge
2.5" 1490 Low Pressure Diaphragm Gauge
SKU: 251490A02L-0/10WC
Ashcroft
SKU: 251490A02L-0/10WC
Brand: Ashcroft
$87.70 each
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Product Image of Differential Pressure Gauge, 1/8" Male NPT (0 - 5" W.C.)
$61.24 each
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Product Image of 2" TBM Bi-Metal Pocket Thermometer w/ 4" Stem (20-Degree (F) to 240-Degree (F) & -5-Degree (C) to 115-Degree (C))
$109.35 each
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Product Image of 4" Stainless Steel Dual Scale Liquid Filled Gauge, 1/4" Back (0-300 PSI)
$96.41 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 3" TBM Bi-Metal Pocket Thermometer w/ 4" Stem (0-Degree (F) to 250-Degree (F))
$63.12 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 3-1/2" PS1 100 Series Pressure Gauge (0-200 PSI) w/ 3-1/2" Back Flange
$71.16 each
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Product Image of A3000 Series Pressure Switch/Gauge (0 - 2" W.C.)
$720.55 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 4" Stainless Steel Dual Scale Liquid Filled Gauge, 1/2" Bottom (0-160 PSI)
$208.36 each
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Product Image of 2000 Series Differential Pressure Gauge (0 - 60" W.C.)
$82.68 each
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Product Image of Differential Pressure Gauge (0 - 100 Pa, +/-3% Accuracy)
$82.68 each
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Product Image of 2" TBM Bi-Metal Pocket Thermometer w/ 2.5" Stem (-40-Degree (F) to 120-Degree (F) & -40-Degree (C) to 50-Degree (C))
$52.72 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 Flush-mounted Concealed Thermometer w/ 3 Color Dial, Piping Manifold, and Stainless Escutcheon (0 to 200-Degree (F))
$367.10 each
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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 2" TBM Bi-Metal Pocket Thermometer w/ 4" Stem (0-Degree (F) to 250-Degree (F) & -20-Degree (C) to 120-Degree (C))
$52.72 each
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Product Image of 3" TBM Bi-Metal Pocket Thermometer w/ 6" 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 2" TMT Dual Scale Surface Magnet Thermometer (0°F to 500°F & -15°C to 260°C)
$46.29 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 2000 Series Differential Pressure Gauge (0 - 6" W.C.)
$91.27 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 DPG Series Digital Pressure Gauge (3000 psi)
$351.71 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 A3000 Series Pressure Switch/Gauge (0 - 5" W.C.)
$720.55 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" Stainless Steel Single Scale Liquid Filled Gauge, 1/2" Bottom (0-160 PSI)
$208.36 each
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Product Image of 2000 Series Differential Pressure Gauge (0 - 10 kPa)
$82.68 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 0-60 PSI Pressure Switch (Nema4x)
0-60 PSI Pressure Switch (Nema4x)
SKU: B424BXFM-60
Ashcroft
SKU: B424BXFM-60
Brand: Ashcroft
$362.14 each
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Product Image of 1" TBM Bi-Metal Pocket Thermometer w/ 5" Stem (0-Degree (F) to 250-Degree (F))
1" TBM Bi-Metal Pocket Thermometer w/ 5" Stem (0-Degree (F) to 250-Degree (F))
SKU: TBM10050B19
Winters Instruments
SKU: TBM10050B19
$19.19 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.