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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 4" Stainless Steel Dual Scale Liquid Filled Gauge, 1/4" Bottom (0-100 PSI)
$132.84 each
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Product Image of 2.5"  1490 Low Pressure Diaphragm Gauge
2.5" 1490 Low Pressure Diaphragm Gauge
SKU: 251490A02L-0/5
Ashcroft
SKU: 251490A02L-0/5
Brand: Ashcroft
$85.67 each
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Product Image of Rehvac Low Pressure Replacement Gauge (3000 psi)
$50.43 each
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Product Image of 3/4" TIM Industrial 9IT Thermometer w/ Aluminum Case (30-Degree (F) to 240-Degree (F)), Lead Free
$215.88 each
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Product Image of 2000 Series Differential Pressure Gauge (0 - 10" W.C. & 0 - 2.5 kPa)
$93.29 each
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Product Image of 1/4" NPT Stainless Steel Pressure Snubber for Water & Oil Service
$84.39 each
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Product Image of Rehvac Low Pressure Replacement Gauge w/ Adapter (600 psi)
$39.44 each
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Product Image of 3000MR Series Pressure Switch/Gauge (0 - 2" W.C.)
$684.20 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 2.5" Stainless Steel Liquid Filled Gauge, 1/4" Bottom w/ Brass Internals, Lead Free (0-60 PSI)
$47.52 each
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Product Image of 3" TBM Bi-Metal Pocket Thermometer w/ 2.5" 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 DPGA Series Digital Pressure Gauge (-30" Hg to 0 psi)
$147.96 each
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Product Image of HCPG Series 2-1/2" Pressure Gauge, 3/4" Hose Thread (0-300 PSI)
$52.90 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 4" PEM Dual Scale Economy Pressure Gauge (0-30"Hg Vacuum/kpa)
$30.99 each
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Product Image of 3" TBM Bi-Metal Pocket Thermometer w/ 4" Stem (20-Degree (F) to 240-Degree (F) & -5-Degree (C) to 115-Degree (C))
$63.12 each
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Product Image of 1/4" Gauge Adapter For T & P Plug
1/4" Gauge Adapter For T & P Plug
SKU: 1726022
Wal-rich
SKU: 1726022
Brand: Wal-rich
$8.33 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 4-1/2" Process Pressure Gauge, 1/4" MNPT (0-100 PSI)
$155.47 each
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Product Image of 2000 Series Differential Pressure Gauge w/ Adjustable Signal Flag (0 - 2" W.C.)
$103.13 each
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Product Image of 2" Stainless Steel Dual Scale Liquid Filled Gauge, 1/4" Bottom (0-400 PSI)
$80.57 each
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Product Image of LFDPG3-2, 2" Dial Center Back Entry Pressure Gauge (0-200 psi)
$72.62 each
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Product Image of 3-1/2" PS1 100 Series Pressure Gauge (0-300 PSI) with Back Flange
$71.17 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 3.5" 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 2.5" 1009AW Duralife Stainless Steel Case Pressure Gauge
2.5" 1009AW Duralife Stainless Steel Case Pressure Gauge
SKU: 251009AW02L-0/100
Ashcroft
SKU: 251009AW02L-0/100
Brand: Ashcroft
$131.33 each
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Product Image of 2300 Series Differential Pressure Gauge (+/-5" W.C.)
$108.15 each
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Product Image of DPGA Series Digital Pressure Gauge (0 - 100 psi)
$147.96 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 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 4" Stainless Steel Dual Scale Liquid Filled Gauge, 1/4" Bottom (0-400 PSI)
$88.50 each
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Product Image of TNC Non-Contact Infrared Thermometer
$269.60 each
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Product Image of 2" TBM Bi-Metal Pocket Thermometer w/ 2.5" Stem (0-Degree (F) to 250-Degree (F) & -20-Degree (C) to 120-Deree (C))
$52.72 each
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Product Image of 800LFB, 3-1/2" Utility Pressure Gauge with Lower Mount, 1/4 NPT (0-200 PSI)
$156.23 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-0/60
Ashcroft
SKU: 251009AW02L-0/60
Brand: Ashcroft
$104.70 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 1/4" CBM Dial Thermometer (3/4" Shank, 1-1/4" Insert)
$23.08 each
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Product Image of 4" Stainless Steel Dual Scale Liquid Filled Gauge, 1/4" Back (0-200 PSI)
$100.24 each
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Product Image of 3-Hole Front Flange for 2-1/2" Dial (Back Mount Only)
$2.21 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 DPG Series Digital Pressure Gauge (200 psi)
$351.71 each
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Product Image of 700SS, 4" Pressure Gauge with Lower Mount (0-3000 PSI)
700SS, 4" Pressure Gauge with Lower Mount (0-3000 PSI)
SKU: 700SS4004LA3000
Trerice
SKU: 700SS4004LA3000
Brand: Trerice
$126.85 each
In Stock
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Product Image of 4" 1008AL Stainless Steel Case Pressure Gauge (Liquid Filled)
4" 1008AL Stainless Steel Case Pressure Gauge (Liquid Filled)
SKU: 1001008AL02L-30/30
Ashcroft
SKU: 1001008AL02L-30/30
Brand: Ashcroft
$70.23 each
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Product Image of 2.5"  1490 Low Pressure Diaphragm Gauge
2.5" 1490 Low Pressure Diaphragm Gauge
SKU: 251490A02L-0/60WC
Ashcroft
SKU: 251490A02L-0/60WC
Brand: Ashcroft
$96.40 each
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Product Image of 1" TBM Bi-Metal Pocket Thermometer w/ 5" Stem (50- Degree (F) to 500-Degree (F) & 10-Degree (C) to 260-Degree (C))
$19.19 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 2000 Series Differential Pressure Gauge (0 - 10" W.C.)
$93.29 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.