Register
View Cart (0 Items)
800-813-5408
Browse Close
800-813-5408
Search Store
Browse Store
Apollo Safety
Request Catalog
Mailing List
Sign up for our newsletter
Contact Us
Apollo Safety
36 Fifth Street
Fall River, MA 02721
508-673-2544

Replacement Sensors

Did you know sensors for gas monitors have a lifespan? Gas monitors are made to last for years, but old sensors can mean false readings and faulty equipment. Luckily for you, most gas monitors have field replaceable sensors making it easy to keep your devices running. Apollo Safety has replacement sensors for the most popular single and multi-gas monitors on the market. 

Prices are subject to change without notice due to ongoing tariff adjustments and market conditions. For the most accurate and up-to-date pricing, please contact us directly.

Narrow it down
1039 products found. Showing 761 - 800Page: << 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 >>
Sensor, Methane (CH4) 0-100% LEL for GX-2009/GX-2012/GX-6000/GP-03/Gas Tracer Sensor, Methane (CH4) 0-100% LEL for GX-2009/GX-2012/GX-6000/GP-03/Gas Tracer

SKU: NC-6264A

Price: $130.00
In Stock
Sensor, Methane (CH4) 0-100% LEL, IR, plug-in style Sensor, Methane (CH4) 0-100% LEL, IR, plug-in style

SKU: 61-5039RK-CH4

Price: $420.00
In Stock
Sensor, Methane (CH4) 0-100% LEL, silcone resistant, for GX-2009/GX-2012/GX-6000/GX-2001/GX-2003/Gas Tracer/GP-01 Sensor, Methane (CH4) 0-100% LEL, silcone resistant, for GX-2009/GX-2012/GX-6000/GX-2001/GX-2003/Gas Tracer/GP-01

SKU: NC-6264AZX

Price: $140.00
In Stock
Sensor, Methane (CH4), 0 - 5000 ppm, MOS sensor/amp unit for GD-70D Sensor, Methane (CH4), 0 - 5000 ppm, MOS sensor/amp unit for GD-70D

SKU: SGU-8511-CH4-5K

Price: $515.00
In Stock
Sensor, Methane (CH4), 0-100% LEL, NCF-6318, for SD-3 Sensor, Methane (CH4), 0-100% LEL, NCF-6318, for SD-3

SKU: NCF-6318-LCH4

Price: $415.00
In Stock
Sensor, Methane (CH4), 0-100% vol., IRF-1334, for SD-3 Sensor, Methane (CH4), 0-100% vol., IRF-1334, for SD-3

SKU: IRF-1334-VCH4

Price: $885.00
In Stock
Sensor, Methane (CH4), 0-2.0% vol, MOS sensor/amp unit for GD-70D Sensor, Methane (CH4), 0-2.0% vol, MOS sensor/amp unit for GD-70D

SKU: SGU-8511-CH4-20

Price: $515.00
In Stock
Sensor, Methane (CH4), 0-2% vol., NCF-6318, for SD-3 Sensor, Methane (CH4), 0-2% vol., NCF-6318, for SD-3

SKU: NCF-6318-VCH4

Price: $415.00
In Stock
Sensor, Methane (CH4), 0-20,000 ppm, NCF-6318, for SD-3 Sensor, Methane (CH4), 0-20,000 ppm, NCF-6318, for SD-3

SKU: NCF-6318-PCH4

Price: $415.00
In Stock
Sensor, Methane (CH4), 0-2000 ppm, MOS sensor/amp unit for GD-70D Sensor, Methane (CH4), 0-2000 ppm, MOS sensor/amp unit for GD-70D

SKU: SGU-8581-CH4-2K

Price: $515.00
In Stock
Sensor, Methanol (CH3OH), 0-1000 ppm, MOS sensor/amp unit for GD-70D Sensor, Methanol (CH3OH), 0-1000 ppm, MOS sensor/amp unit for GD-70D

SKU: SGU-8521-MET-1K

Price: $515.00
In Stock
Sensor, Methanol (CH3OH), 0-2000 ppm, MOS sensor/amp unit for GD-70D Sensor, Methanol (CH3OH), 0-2000 ppm, MOS sensor/amp unit for GD-70D

SKU: SGU-8521-MET-2K

Price: $515.00
In Stock
Sensor, Methyl Silane (CH3SiH3), 0-20 ppm, for GD-K88Ai, GD-K71D, GD-K77D, and SC-8000 Sensor, Methyl Silane (CH3SiH3), 0-20 ppm, for GD-K88Ai, GD-K71D, GD-K77D, and SC-8000

SKU: ESM-23DH-MS

Price: $505.00
In Stock
Sensor, Methylamine (CH3NH2), 0-15 ppm, sensor/amp unit for GD-70D Sensor, Methylamine (CH3NH2), 0-15 ppm, sensor/amp unit for GD-70D

SKU: ESU-23RVM-MMTA

Price: $525.00
In Stock
Sensor, MMH (N2H4) 0 - 10.00 ppm for GX-6000 / GX-6100 Sensor, MMH (N2H4) 0 - 10.00 ppm for GX-6000 / GX-6100

SKU: ESS-A33E-MMH

Price: $525.00
In Stock
Sensor, NH3, 75 or 100 ppm, long-life/humidity-resistant, CT-7 style, with added membrane Sensor, NH3, 75 or 100 ppm, long-life/humidity-resistant, CT-7 style, with added membrane

SKU: 65-2055-01

Price: $547.00
In Stock
Sensor, Nitric Acid (HNO3), 0 - 20 ppm Sensor, Nitric Acid (HNO3), 0 - 20 ppm

SKU: ES-K233-HNO3

Price: $485.00
In Stock
Sensor, Nitric Acid (HNO3), 0-20.0 ppm, sensor/amp unit for GD-70D Sensor, Nitric Acid (HNO3), 0-20.0 ppm, sensor/amp unit for GD-70D

SKU: ESU-K233-HNO3

Price: $525.00
In Stock
Sensor, Nitric Oxide (NO) 0 - 100 ppm range Sensor, Nitric Oxide (NO) 0 - 100 ppm range

SKU: ES-23A-NO

Price: $485.00
In Stock
Sensor, Nitric Oxide (NO) 0 - 100 ppm, CT-7 syle with j-box, non explosion proof Sensor, Nitric Oxide (NO) 0 - 100 ppm, CT-7 syle with j-box, non explosion proof

SKU: 65-2303-NO

Price: $890.00
In Stock
Sensor, Nitric Oxide (NO) covers full scale up to 250 ppm, EC type Sensor, Nitric Oxide (NO) covers full scale up to 250 ppm, EC type

SKU: 66-0007

Price: $440.00
In Stock
Sensor, Nitric Oxide (NO), 0 - 100 ppm, CT-7 style with added membrane Sensor, Nitric Oxide (NO), 0 - 100 ppm, CT-7 style with added membrane

SKU: 65-2015-01

Price: $470.00
In Stock
Sensor, Nitric Oxide (NO), 0 - 100 ppm, CT-7 style, non explosion proof Sensor, Nitric Oxide (NO), 0 - 100 ppm, CT-7 style, non explosion proof

SKU: 65-2302-NO

Price: $765.00
In Stock
Sensor, Nitric Oxide (NO), 0-100 ppm, for GD-K88Ai, GD-K71D, GD-K77D, and SC-8000 Sensor, Nitric Oxide (NO), 0-100 ppm, for GD-K88Ai, GD-K71D, GD-K77D, and SC-8000

SKU: ESM-23A-NO

Price: $505.00
In Stock
Sensor, Nitric Oxide (NO), 0-100 ppm, sensor/amp unit for GD-70D Sensor, Nitric Oxide (NO), 0-100 ppm, sensor/amp unit for GD-70D

SKU: ESU-23A-NO

Price: $525.00
In Stock
Sensor, Nitric Oxide (NO), 0-100.0 ppm, F sensor package, for 9000 Series and Eagle 3 Sensor, Nitric Oxide (NO), 0-100.0 ppm, F sensor package, for 9000 Series and Eagle 3

SKU: ESF-A24D2-NO

Price: $525.00
In Stock
Sensor, Nitrogen Dioxide (NO2) 0 - 15 ppm range Sensor, Nitrogen Dioxide (NO2) 0 - 15 ppm range

SKU: ES-23AH-NO2

Price: $485.00
In Stock
Sensor, Nitrogen Dioxide (NO2) 0 - 20 ppm, EC type Sensor, Nitrogen Dioxide (NO2) 0 - 20 ppm, EC type

SKU: 66-0008

Price: $440.00
In Stock
Sensor, Nitrogen Dioxide (NO2) 0-20 ppm for GX-2009 MSHA Sensor, Nitrogen Dioxide (NO2) 0-20 ppm for GX-2009 MSHA

SKU: ES-1826

Price: $170.00
In Stock
Sensor, Nitrogen Dioxide (NO2) 0-20 ppm for GX-3R Pro / SC-04 Sensor, Nitrogen Dioxide (NO2) 0-20 ppm for GX-3R Pro / SC-04

SKU: ESR-A13D-NO2

Price: $255.00
In Stock
Sensor, Nitrogen Dioxide (NO2) sensor, 0 - 15 ppm, direct connection with conduit mounting, non explosion proof (no transmitter, no j-box) Sensor, Nitrogen Dioxide (NO2) sensor, 0 - 15 ppm, direct connection with conduit mounting, non explosion proof (no transmitter, no j-box)

SKU: 65-2302-NO2

Price: $765.00
In Stock
Sensor, Nitrogen Dioxide (NO2), 0 - 15 ppm, CT-7 style with added membrane Sensor, Nitrogen Dioxide (NO2), 0 - 15 ppm, CT-7 style with added membrane

SKU: 65-2058-01

Price: $470.00
In Stock
Sensor, Nitrogen Dioxide (NO2), 0 - 15 ppm, CT-7 style with j-box, non explosion proof Sensor, Nitrogen Dioxide (NO2), 0 - 15 ppm, CT-7 style with j-box, non explosion proof

SKU: 65-2303-NO2

Price: $890.00
In Stock
Sensor, Nitrogen Dioxide (NO2), 0 - 20 ppm for GX-6000 / GX-6100 Sensor, Nitrogen Dioxide (NO2), 0 - 20 ppm for GX-6000 / GX-6100

SKU: ESS-03DH-NO2

Price: $275.00
In Stock
Sensor, Nitrogen Dioxide (NO2), 0-15 ppm, ESF-A24A, for SD-3 Sensor, Nitrogen Dioxide (NO2), 0-15 ppm, ESF-A24A, for SD-3

SKU: ESF-A24A-NO2

Price: $525.00
In Stock
Sensor, Nitrogen Dioxide (NO2), 0-15 ppm, for GD-K88Ai, GD-K71D, GD-K77D, and SC-8000 Sensor, Nitrogen Dioxide (NO2), 0-15 ppm, for GD-K88Ai, GD-K71D, GD-K77D, and SC-8000

SKU: ESM-23AH-NO2

Price: $505.00
In Stock
Sensor, Nitrogen Dioxide (NO2), 0-15 ppm, sensor/amp unit for GD-70D Sensor, Nitrogen Dioxide (NO2), 0-15 ppm, sensor/amp unit for GD-70D

SKU: ESU-23AR-NO2-15

Price: $525.00
In Stock
Sensor, Nitrogen Dioxide (NO2), 0-15.0 ppm, F sensor package, for 9000 Series and Eagle 3 Sensor, Nitrogen Dioxide (NO2), 0-15.0 ppm, F sensor package, for 9000 Series and Eagle 3

SKU: ESF-AA20-NO2

Price: $525.00
In Stock
Sensor, Nitrogen Dioxide (NO2), 0-30 ppm, (for Nitrogen Trifluoride NF3, GD-K77DG-NF3) Sensor, Nitrogen Dioxide (NO2), 0-30 ppm, (for Nitrogen Trifluoride NF3, GD-K77DG-NF3)

SKU: ESM-23AH-NO2/NF

Price: $505.00
In Stock
Sensor, Nitrogen Dioxide (NO2), 0-9 ppm, sensor/amp unit for GD-70D Sensor, Nitrogen Dioxide (NO2), 0-9 ppm, sensor/amp unit for GD-70D

SKU: ESU-23AR-NO2-09

Price: $525.00
In Stock

1039 products found. Showing 761 - 800Page: << 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 >>
© 2025 Copyright Apollo Safety. All Rights Reserved.
Apollo Safety
36 Fifth Street
Fall River, MA 02721
508-673-2544
sales@apollosafety.com

Veteran Owned Small Business