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AO Smith (12)
Aprilaire (2)
Argo (1)
Bacharach (2)
Baso Gas Products (19)
Bosch (1)
Bradford White (3)
Buderus (3)
Burnham (14)
Cozy (3)

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Accessory (22)
Heating (10)
Radiator Vent (4)
Replacement Part (22)
Snow Melt (1)

Product Type
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Accessory (1)
Boiler Part (6)
Burner (2)
Cleaner (1)
Control Assembly (1)
Flame Detector (3)
Flame Monitor Control (3)
Flame Rod (1)
Flame Scanner (28)
Flame Sensor (13)

Features
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-40 to 248°F (3)
High Temp. Silicon Cable (3)
Non-Self Check (11)
PVC Cable (3)
Remote Data Communications (2)
Remote Display (2)
Remote Reset (2)
Self-Check (8)

Temperature Range (F)
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-30°F to 160°F (3)
-40°F - 120°F (2)
-40°F to 150°F (2)
-40°F to 150°F (2)
-40°F to 158°F (2)
-40°F to 250°F (27)
40°F - 240°F (4)
40°F to 150°F (2)
40°F to 180°F (1)
40°F to 220°F (4)

Voltage
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18 mV (1)
20 mV (7)
30 mV (24)
750 mV (4)
24V (1)
115/230V (2)
120v (6)
220v (1)

Price Range
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$1 to $5 (5)
$5 to $10 (15)
$10 to $15 (33)
$15 to $20 (22)
$20 to $25 (26)
$25 to $30 (11)
$30 to $35 (19)
$35 to $40 (19)
$40 to $45 (23)
$45 to $50 (16)

Flame Sensors

429 items
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Product Image of 24" Uni-Couple (20-30 Millivolts)
24" Uni-Couple (20-30 Millivolts)
SKU: 1970-024
Robertshaw
SKU: 1970-024
Brand: Robertshaw
(8)
$10.29 each
BOX UP & SAVE 5%
$97.50 box of 10
$9.75 each
In Stock
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Product Image of 36" Thermocouple
36" Thermocouple
SKU: 22236
Packard
SKU: 22236
Brand: Packard
$9.70 each
In Stock
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Product Image of Outdoor Temperature Sensor, 10K Ohm NTC Type III
Outdoor Temperature Sensor, 10K Ohm NTC Type III
SKU: C7023F2009
Honeywell
SKU: C7023F2009
Brand: Honeywell
$72.69 each
In Stock
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Product Image of 12" Duct Temperature Sensor, 10K Ohm NTC Type III
12" Duct Temperature Sensor, 10K Ohm NTC Type III
SKU: C7023B2013
Honeywell
SKU: C7023B2013
Brand: Honeywell
$42.61 each
In Stock
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Product Image of Optional Indoor Sensor for Basic Heating Control
Optional Indoor Sensor for Basic Heating Control
SKU: 16016
Viega
SKU: 16016
Brand: Viega
$61.18 each
In Stock
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Product Image of Flame Sensor for FT30-300, 147165
Flame Sensor for FT30-300, 147165
SKU: 147165
Reznor
SKU: 147165
Brand: Reznor
$53.01 each
In Stock
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Product Image of Replacement PTC Sensor with 9-3/4 ft Silicon Cable Leads
Replacement PTC Sensor with 9-3/4 ft Silicon Cable Leads
SKU: A99BC-300C
Johnson Controls
SKU: A99BC-300C
Brand: Johnson Controls
$108.73 each
In Stock
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Product Image of Mercury Flame Sensor, 42" Element
Mercury Flame Sensor, 42" Element
SKU: 30A46-5
White Rodgers
SKU: 30A46-5
Brand: White Rodgers
(7)
$249.47 each
In Stock
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Product Image of Non-Self Check MB-Series Ultra-Violet Scanner with 1/2" NPT 90° Mount
Non-Self Check MB-Series Ultra-Violet Scanner with 1/2" NPT 90° Mount
SKU: UV7R4
Fireye
SKU: UV7R4
Brand: Fireye
$238.00 each
In Stock
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Product Image of 18" Uni-Couple (20-30 Millivolts)
18" Uni-Couple (20-30 Millivolts)
SKU: 1970-018
Robertshaw
SKU: 1970-018
Brand: Robertshaw
(8)
$10.29 each
In Stock
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Product Image of 12" Flame Rod with 1/2" NPT Mount
12" Flame Rod with 1/2" NPT Mount
SKU: 69ND1-1000K4
Fireye
SKU: 69ND1-1000K4
Brand: Fireye
$172.00 each
In Stock
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Product Image of 11/16" Stainless Steel Button Sensor
11/16" Stainless Steel Button Sensor
SKU: C7041P2004
Honeywell
SKU: C7041P2004
Brand: Honeywell
$88.41 each
In Stock
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Product Image of 3/4" Heat Block for Infrared Flame Sensor
3/4" Heat Block for Infrared Flame Sensor
SKU: 105061
Honeywell
SKU: 105061
Brand: Honeywell
$67.58 each
In Stock
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Product Image of 24" Super Slim Jim Thermocouple
24" Super Slim Jim Thermocouple
SKU: K19AT-24H
Baso Gas Products
SKU: K19AT-24H
Brand: Baso Gas Products
(1)
$13.46 each
In Stock
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Product Image of Flame Sensor for JC-Y75MK-1D, 134706
Flame Sensor for JC-Y75MK-1D, 134706
SKU: 134706
Reznor
SKU: 134706
Brand: Reznor
$108.38 each
In Stock
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Product Image of Minipeeper UV Sensor - 1" Mounting
Minipeeper UV Sensor - 1" Mounting
SKU: C7035A1023
Honeywell
SKU: C7035A1023
Brand: Honeywell
$590.45 each
In Stock
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Product Image of Replacement Floor Sensor for LX Thermostat (Black)
Replacement Floor Sensor for LX Thermostat (Black)
SKU: ETF-110/99C
Danfoss
SKU: ETF-110/99C
Brand: Danfoss
$36.92 each
In Stock
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Product Image of Flame Sensor Replacement, 1171449
Flame Sensor Replacement, 1171449
SKU: 1171449
Heil Quaker (ICP)
SKU: 1171449
Brand: Heil Quaker (ICP)
$35.58 each
In Stock
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Product Image of 60" Uni-Couple (20-30 Millivolts)
60" Uni-Couple (20-30 Millivolts)
SKU: 1970-060
Robertshaw
SKU: 1970-060
Brand: Robertshaw
(8)
$18.99 each
In Stock
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Product Image of Wall Mounted Remote Bulb Enclosure (without sensor)
Wall Mounted Remote Bulb Enclosure (without sensor)
SKU: TR29
Honeywell
SKU: TR29
Brand: Honeywell
$81.26 each
In Stock
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Product Image of Flame Sensor for Y75BA-3, 43594
Flame Sensor for Y75BA-3, 43594
SKU: 43594
Reznor
SKU: 43594
Brand: Reznor
$61.34 each
In Stock
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Product Image of 48" Thermopile Generator w/ PG9 Pilot Adaptor
48" Thermopile Generator w/ PG9 Pilot Adaptor
SKU: 1950-002
Robertshaw
SKU: 1950-002
Brand: Robertshaw
(22)
$73.94 each
In Stock
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Product Image of Flame Amplifier, Ultraviolet Ampli-Check used w/ 7800 Series Relay Modules (FFRT 0.8 sec or 1.0 sec)
Flame Amplifier, Ultraviolet Ampli-Check used w/ 7800 Series Relay Modules (FFRT 0.8 sec or 1.0 sec)
SKU: R7849B1013
Honeywell
SKU: R7849B1013
Brand: Honeywell
$677.97 each
Backorder
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Product Image of 24" Thermocouple, UV6379R
24" Thermocouple, UV6379R
SKU: UV6379R
Rheem
SKU: UV6379R
Brand: Rheem
$14.70 each
In Stock
Get 6 by Thu, Jul 9
In Stock
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Product Image of Flame Sensor Replacement, 1173830
Flame Sensor Replacement, 1173830
SKU: 1173830
Heil Quaker (ICP)
SKU: 1173830
Brand: Heil Quaker (ICP)
$22.91 each
In Stock
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Product Image of Flue-Gas Temperature Sensor for CHG, Freedom Boilers, 101015-01
Flue-Gas Temperature Sensor for CHG, Freedom Boilers, 101015-01
SKU: 101015-01
Burnham
SKU: 101015-01
Brand: Burnham
(5)
$82.82 each
In Stock
Get 2 by Tue, Jul 7
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Product Image of 18" Duct Temperature Sensor, 10K Ohm NTC Type II
18" Duct Temperature Sensor, 10K Ohm NTC Type II
SKU: C7021C2003
Honeywell
SKU: C7021C2003
Brand: Honeywell
$48.10 each
In Stock
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Product Image of Replacement PTC Sensor with 6-1/2 ft (2 m) Shielded Leads
Replacement PTC Sensor with 6-1/2 ft (2 m) Shielded Leads
SKU: A99BA-200C
Johnson Controls
SKU: A99BA-200C
Brand: Johnson Controls
(2)
$48.60 each
In Stock
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Product Image of Flame Sensor Replacement, 1380679
Flame Sensor Replacement, 1380679
SKU: 1380679
Heil Quaker (ICP)
SKU: 1380679
Brand: Heil Quaker (ICP)
(1)
$72.06 each
In Stock
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Product Image of 30" Infrared Flame Sensor
30" Infrared Flame Sensor
SKU: C7915A1010
Honeywell
SKU: C7915A1010
Brand: Honeywell
(1)
$599.15 each
In Stock
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Product Image of 12' Flexible Copper Averaging Duct Temperature Sensor, 10K Ohm NTC Type III
12' Flexible Copper Averaging Duct Temperature Sensor, 10K Ohm NTC Type III
SKU: C7023R2000
Honeywell
SKU: C7023R2000
Brand: Honeywell
$164.97 each
In Stock
Get 1 by Wed, Jul 8
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Product Image of 3K ohm Air Temperature Sensor w/ 8" insertion and 6" leadwires
3K ohm Air Temperature Sensor w/ 8" insertion and 6" leadwires
SKU: C7046A1004
Honeywell
SKU: C7046A1004
Brand: Honeywell
$91.49 each
In Stock
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Product Image of Flame Amplifier used w/7800 & R7140 Series Relay Modules
Flame Amplifier used w/7800 & R7140 Series Relay Modules
SKU: R7847A1074
Honeywell
SKU: R7847A1074
Brand: Honeywell
$296.91 each
In Stock
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Product Image of Flame Amplifier, Infrared Ampli-Check for 7800 Series Relay Modules (FFRT 2.0 sec or 3.0 sec)
Flame Amplifier, Infrared Ampli-Check for 7800 Series Relay Modules (FFRT 2.0 sec or 3.0 sec)
SKU: R7852B1009
Honeywell
SKU: R7852B1009
Brand: Honeywell
$435.87 each
In Stock
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Product Image of 4 Sec. FFRT Integrated Flame Scanner with 1" NPT Mounting Flange
4 Sec. FFRT Integrated Flame Scanner with 1" NPT Mounting Flange
SKU: 65UV5-1004QD
Fireye
SKU: 65UV5-1004QD
Brand: Fireye
$2,454.00 each
In Stock
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Product Image of Q309A1996 24V Thermocouple for 806-807 Boilers, 36" Long, 8236004
Q309A1996 24V Thermocouple for 806-807 Boilers, 36" Long, 8236004
SKU: 8236004
Burnham
SKU: 8236004
Brand: Burnham
$45.22 each
In Stock
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Product Image of Remote Flame Sensor
Remote Flame Sensor
SKU: 10-681
Robertshaw
SKU: 10-681
Brand: Robertshaw
(1)
$24.64 each
In Stock
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Product Image of Small Metal Button Sensor, 10K Ohm NTC Type II
Small Metal Button Sensor, 10K Ohm NTC Type II
SKU: C7021P2004
Honeywell
SKU: C7021P2004
Brand: Honeywell
$100.85 each
In Stock
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Product Image of 24" Thermocouple, SP6379R
24" Thermocouple, SP6379R
SKU: SP6379R
Rheem
SKU: SP6379R
Brand: Rheem
$25.25 each
In Stock
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Product Image of 18" Thermocouple, UV6379L
18" Thermocouple, UV6379L
SKU: UV6379L
Rheem
SKU: UV6379L
Brand: Rheem
$16.67 each
In Stock
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Product Image of Outdoor Temperature Sensor
Outdoor Temperature Sensor
SKU: 7738007304
Buderus
SKU: 7738007304
Brand: Buderus
$105.00 each
In Stock
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Product Image of Supply Temperature Sensor for FCM120 Boiler, 100369-01
Supply Temperature Sensor for FCM120 Boiler, 100369-01
SKU: 100369-01
Burnham
SKU: 100369-01
Brand: Burnham
(1)
$69.01 each
In Stock
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Product Image of Flame Sensor without Bracket for PSE-RZ11, 209973
Flame Sensor without Bracket for PSE-RZ11, 209973
SKU: 209973
Reznor
SKU: 209973
Brand: Reznor
$41.68 each
In Stock
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Product Image of 24' Flexible Copper Averaging Duct Temperature Sensor, 10K Ohm NTC Type III
24' Flexible Copper Averaging Duct Temperature Sensor, 10K Ohm NTC Type III
SKU: C7023R2018
Honeywell
SKU: C7023R2018
Brand: Honeywell
$306.35 each
In Stock
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Product Image of 24" Thermocouple
24" Thermocouple
SKU: 22224
Packard
SKU: 22224
Brand: Packard
$9.54 each
In Stock
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Product Image of 5" Water Temperature Sensor, 10K Ohm NTC Type III
5" Water Temperature Sensor, 10K Ohm NTC Type III
SKU: C7023D2001
Honeywell
SKU: C7023D2001
Brand: Honeywell
$39.24 each
In Stock
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Product Image of 19" Thermocouple, SP6379M
19" Thermocouple, SP6379M
SKU: SP6379M
Rheem
SKU: SP6379M
Brand: Rheem
(3)
$18.86 each
In Stock
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Product Image of Non-Self Check MB-Series Ultra-Violet Scanner with 1/2" NPT Mount
Non-Self Check MB-Series Ultra-Violet Scanner with 1/2" NPT Mount
SKU: UV7A4
Fireye
SKU: UV7A4
Brand: Fireye
$322.00 each
In Stock
Get 94 by Wed, Jul 8
In Stock
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