FREE Same-Day Shipping

Order before 11am PST. Delivery with USPS or UPS Ground in the USA.

30-Day Money Back Refund

No risk. No questions. 30-Day return refund policy.

Overnight Shipping ($69)

Fast deliver on in-stock items. Order before 11am PST same day. Email to verify stock.

USA NIST Traceable Certificate

Calibration performed in Los Angeles, California, USA.

FREE Same-Day Shipping

Order before 11am PST. Delivery with USPS or UPS Ground in the USA.

Our Customers

boeing logo
stanford logo
PG logo
tesla logo
exxon logo
costco logo

4 Gas Monitors

View all
Save 24%
Basic 4 Gas Monitor | USA NIST Calibration
Basic 4 Gas Monitor | USA NIST Calibration
No reviews
$225.00 $295.00
Save 27%
Multigas Detector | Professional | USA NIST Calibration
Multigas Detector | Professional | USA NIST Calibration
No reviews
$275.00 $375.00
Save 54%
Basic Multigas Detector + Pump - Forensics Detectors
Basic 4 Gas Detector & Pump | USA NIST Calibration
No reviews
$325.00 $699.00
Save 40%
4 Gas Monitor & Analyzer | Industrial - Forensics Detectors
4 Gas Analyzer with USA NIST Calibration
No reviews
$599.00 $999.00

Carbon Dioxide Detectors

View all
Save 40%
Carbon Dioxide Monitor | USB & Battery - Forensics Detectors
CO2 Monitor | USB & Battery
No reviews
$99.00 $165.00
Save 40%
Carbon Dioxide Monitor | Plug-in 110V AC - Forensics Detectors
CO2 Monitor | Plug-in 110V AC
No reviews
$99.00 $165.00
Save 49%
Headspace Analyzer | Carbon Dioxide & Oxygen - Forensics Detectors
Headspace Analyzer | Carbon Dioxide & Oxygen
No reviews
$1,295.00 $2,550.00
Save 46%
CO2 Meter for Incubators | 0-10% | USA NIST Calibration
CO2 Meter for Incubators | 0-10% | USA NIST Calibration
No reviews
$695.00 $1,295.00

Carbon Monoxide Detectors and Meters

View all
Save 21%
Car Aircraft Carbon Monoxide Detector
Car Aircraft Carbon Monoxide Detector
No reviews
$99.00 $125.00
Save 49%
Fast Low Level CO Monitor (White)
Fast Low Level CO Monitor (White)
No reviews
$99.00 $195.00
Save 31%
Carbon Monoxide Meter | USA NIST Calibration
Carbon Monoxide Meter | USA NIST Calibration
No reviews
$89.00 $129.00
Save 50%
Low Level CO Detector with Fast Alarm (Blue)
Low Level CO Detector with Fast Alarm (Blue)
No reviews
$99.00 $199.00

Gas Data Loggers

View all
Save 33%
5 Gas Analyzer | Automotive Exhaust Emission | CO, O2, HC, NOx, CO2 |
5 Gas Analyzer | Automotive Exhaust Emission | CO, O2, HC, NOx, CO2 |
No reviews
$1,995.00 $2,995.00
Save 40%
Oxygen Data Logger Analyzer | USA NIST Calibration
Oxygen Data Logger Analyzer | USA NIST Calibration
No reviews
$895.00 $1,499.00
Save 41%
VOC Data Logger Analyzer | USA NIST Calibration
VOC Data Logger Analyzer | USA NIST Calibration
No reviews
$995.00 $1,699.00
Save 34%
Ammonia Data Logger Analyzer | USA NIST Calibration
Ammonia Data Logger Analyzer | USA NIST Calibration
No reviews
$995.00 $1,499.00

Gas Leak Detectors

View all
Save 49%
Sewer Gas Detector | Natural Gas | Yellow
Sewer Gas Detector | Natural Gas | Yellow
No reviews
$99.00 $195.00
Save 49%
Gas Leak Detector | Propane, Sewer, Combustibles | Yellow
Gas Leak Detector | Propane, Sewer, Combustibles | Yellow
No reviews
$99.00 $195.00
Save 40%
Gas Leak Detector | Natural Gas & Combustibles - Forensics Detectors
Gas Leak Detector | Natural Gas & Propane
No reviews
$99.00 $165.00
Save 40%
Gas Leak Detector | Combustibles | Red
Gas Leak Detector | Combustibles | Red
No reviews
$99.00 $165.00

Hydrogen Gas Detectors

View all
Save 63%
Hydrogen Detector | USA NIST Calibration
Hydrogen Detector | USA NIST Calibration
No reviews
$365.00 $995.00
Save 45%
Hydrogen Analyzer | 0 - 1000ppm - Forensics Detectors
Hydrogen Gas Leak Detector | USA NIST Calibration
No reviews
From $695.00 $1,255.00
Save 55%
Hydrogen Gas | Wall Mount | Battery Room | USA NIST Calibration
Hydrogen Gas | Wall Mount | Battery Room | USA NIST Calibration
No reviews
$695.00 $1,555.00
Save 34%
Hydrogen Gas Data Logger Analyzer | USA NIST Calibration
Hydrogen Gas Data Logger Analyzer | USA NIST Calibration
No reviews
$995.00 $1,499.00

Oxygen Detectors and Analyzers

View all
Save 46%
OXYGEN Detector - Forensics Detectors
Oxygen Detector 0-30%
No reviews
$159.00 $295.00
Save 46%
Oxygen Detector | Waterproof
Oxygen Detector | Waterproof
No reviews
$159.00 $295.00
Save 51%
Oxygen Analyzer for Oxygen Concentrator - Forensics Detectors
Oxygen Analyzer for Oxygen Concentrators
No reviews
$195.00 $395.00
Save 33%
OXYGEN Analyzer | Scuba Diving | 0 - 100% |
OXYGEN Analyzer | Scuba Diving | 0 - 100% |
No reviews
$199.00 $295.00
Save 53%
OXYGEN (O2) Detector + Pump
OXYGEN (O2) Detector + Pump
No reviews
$235.00 $495.00
Save 54%
Oxygen Analyzer | Leak Purge & Weld Monitor (100ppm)
Oxygen Analyzer | Leak Purge & Weld Monitor (100ppm)
No reviews
$595.00 $1,295.00
Save 40%
Oxygen Analyzer for Breath Analysis
Oxygen Analyzer for Breath Analysis
No reviews
$595.00 $995.00
Save 47%
Nitrogen Gas Detector | Analyzer for N2 Leaks
Nitrogen Gas Detector | Analyzer for N2 Leaks
No reviews
$595.00 $1,125.00
Save 56%
OXYGEN Detector | Wall Mount
OXYGEN Detector | Wall Mount
No reviews
$695.00 $1,595.00
Save 45%
Headspace Analyzer | Oxygen 0 - 30%
Headspace Analyzer | Oxygen 0 - 30%
No reviews
$795.00 $1,450.00
Save 40%
Oxygen Data Logger Analyzer | USA NIST Calibration
Oxygen Data Logger Analyzer | USA NIST Calibration
No reviews
$895.00 $1,499.00

Ozone Gas Detectors

View all
Save 64%
Ozone Detector | USA NIST Calibration
Ozone Detector | USA NIST Calibration
No reviews
$325.00 $895.00
Save 60%
Ozone Detector & Pump | USA NIST Calibration
Ozone Detector & Pump | USA NIST Calibration
No reviews
$395.00 $995.00
Save 43%
Low-Level OZONE Detector | 0.01ppm | NIST Traceable - Forensics Detectors
Low-Level OZONE Detector | 0.01 ppm | NIST Traceable
No reviews
$799.00 $1,395.00
Save 62%
OZONE Analyzer | Data Logging | NIST Calibration
OZONE Analyzer | Data Logging | NIST Calibration
No reviews
$495.00 $1,295.00

Low Level Carbon Monoxide Detectors

View all
Save 21%
Car Aircraft Carbon Monoxide Detector
Car Aircraft Carbon Monoxide Detector
No reviews
$99.00 $125.00
Save 49%
Fast Low Level CO Monitor (White)
Fast Low Level CO Monitor (White)
No reviews
$99.00 $195.00
Save 50%
Low Level CO Detector with Fast Alarm (Blue)
Low Level CO Detector with Fast Alarm (Blue)
No reviews
$99.00 $199.00
Save 29%
Carbon Monoxide Meter | Waterproof | USA NIST Calibration
Carbon Monoxide Meter | Waterproof | USA NIST Calibration
No reviews
$99.00 $139.00

Merch

View all
Save 41%
Tactical Flashlight
Tactical Flashlight
No reviews
$29.00 $49.00
Save 17%
Monthly Special
Monthly Special
No reviews
$49.00 $59.00
Save 68%
Pocket Knife | DAPR
Pocket Knife | DAPR
No reviews
$19.00 $59.00
Save 17%
Pocket Multimeter
Pocket Multimeter
No reviews
$49.00 $59.00

Vape Detectors

View all
Save 40%
Vape Detector (& Weed, Smoke)
Vape Detector (& Weed, Smoke)
No reviews
$295.00 $495.00
Save 39%
Vape Detector for Schools, Hotels, Home
Vape Detector for Schools, Hotels, Home
No reviews
$485.00 $795.00
Save 40%
Cigarette Smoke Detector
Cigarette Smoke Detector
No reviews
$295.00 $495.00
Save 50%
Vape Detector Datalogger (Weed and Cigarette Smoke)
Vape Detector Datalogger (Weed and Cigarette Smoke)
No reviews
$395.00 $795.00

Toxic Gas Detectors

View all
Save 63%
Hydrogen Detector | USA NIST Calibration
Hydrogen Detector | USA NIST Calibration
No reviews
$365.00 $995.00
Save 45%
Hydrogen Analyzer | 0 - 1000ppm - Forensics Detectors
Hydrogen Gas Leak Detector | USA NIST Calibration
No reviews
From $695.00 $1,255.00
Save 36%
H2S Monitor | USA NIST Calibration
H2S Monitor | USA NIST Calibration
No reviews
$99.00 $155.00
Save 50%
Ammonia Detector | USA NIST Calibration - Forensics Detectors
Ammonia Detector with USA NIST Calibration
No reviews
$395.00 $795.00

Ammonia Gas Detectors

View all
Save 41%
Basic Ammonia Meter - Forensics Detectors
Basic Ammonia Meter
No reviews
$235.00 $395.00
Save 50%
Ammonia Detector | USA NIST Calibration - Forensics Detectors
Ammonia Detector with USA NIST Calibration
No reviews
$395.00 $795.00
Save 46%
Ammonia Detector Wall Mount with USA NIST Calibration
Ammonia Detector Wall Mount with USA NIST Calibration
No reviews
$699.00 $1,295.00
Save 50%
Ammonia Gas Analyzer | USA NIST Calibration
Ammonia Gas Analyzer | USA NIST Calibration
No reviews
$495.00 $995.00

H2S Monitors

View all
Save 36%
H2S Monitor | USA NIST Calibration
H2S Monitor | USA NIST Calibration
No reviews
$99.00 $155.00
Save 34%
H2S Monitor Analyzer | USA NIST Calibration
H2S Monitor Analyzer | USA NIST Calibration
No reviews
$325.00 $495.00
Save 41%
H2S Monitor & Pump | USA NIST Calibration
H2S Monitor & Pump | USA NIST Calibration
No reviews
$175.00 $295.00
Save 56%
Hydrogen Sulfide Detector | Wall Mount | USA NIST Calibration
Hydrogen Sulfide Detector | Wall Mount | USA NIST Calibration
No reviews
$695.00 $1,595.00

Headspace MAP Gas Analyzers

View all
Save 45%
Headspace Analyzer | Oxygen 0 - 30%
Headspace Analyzer | Oxygen 0 - 30%
No reviews
$795.00 $1,450.00
Save 49%
Headspace Analyzer | Carbon Dioxide & Oxygen - Forensics Detectors
Headspace Analyzer | Carbon Dioxide & Oxygen
No reviews
$1,295.00 $2,550.00
Save 50%
Headspace Analyzer | CO, O2, CO2 - Forensics Detectors
Headspace Analyzer | CO, O2, CO2
No reviews
$1,495.00 $2,990.00
Save 50%
Headspace Analyzer | Carbon Dioxide | 0 - 100% |
Headspace Analyzer | Carbon Dioxide | 0 - 100% |
No reviews
$995.00 $1,995.00

Wall Mount Monitors

View all
Save 34%
4 Gas Meter Detector | Wall Mount | USA NIST Calibration
4 Gas Meter Detector | Wall Mount | USA NIST Calibration
No reviews
$1,395.00 $2,099.00
Save 46%
Ammonia Detector Wall Mount with USA NIST Calibration
Ammonia Detector Wall Mount with USA NIST Calibration
No reviews
$699.00 $1,295.00
Save 40%
Carbon Monoxide Wall Monitor | USA NIST Calibration
Carbon Monoxide Wall Monitor | USA NIST Calibration
No reviews
$595.00 $995.00
Save 56%
Chlorine Detector | Wall Mount | USA NIST Calibration
Chlorine Detector | Wall Mount | USA NIST Calibration
No reviews
$695.00 $1,590.00

Calibration Gas

View all
Save 34%
4 Gas Multigas | 200 ppm CO | 25 ppm H2S | 50% LEL | 18% O2 |
4 Gas Multigas | 200 ppm CO | 25 ppm H2S | 50% LEL | 18% O2 |
No reviews
From $195.00 $295.00
Save 26%
Ammonia Gas | 50ppm | - Forensics Detectors
Acetylene Gas | 50 ppm |
No reviews
From $280.00 $380.00
Save 26%
Ammonia Gas | 50ppm | - Forensics Detectors
Ammonia Gas | 50 ppm |
No reviews
From $280.00 $380.00
Save 36%
Argon Gas | 100% |
Argon Gas | 100% |
No reviews
From $180.00 $280.00

Bump Gas

View all
Save 41%
4 Gas Multigas | Bump Gas
4 Gas Multigas | Bump Gas
No reviews
$145.00 $245.00
Save 43%
Argon | Bump Gas
Argon | Bump Gas
No reviews
$130.00 $230.00
Save 43%
Carbon Dioxide | Bump Gas
Carbon Dioxide | Bump Gas
No reviews
$130.00 $230.00
Save 43%
Carbon Monoxide | Bump Gas
Carbon Monoxide | Bump Gas
No reviews
$130.00 $230.00

Combustion Analyzers

View all
Save 50%
Residential Combustion Analyzer | Flue Gas - Forensics Detectors
Basic Combustion Analyzer | NIST Calibration
No reviews
$345.00 $695.00
Save 62%
Professional Combustion Analyzer | Exhaust Flue Gas - Forensics Detectors
Professional Combustion Analyzer | Monoxor | USA NIST Calibration
No reviews
$495.00 $1,295.00
Save 42%
Residential Combustion Analyzer | Flue Gas - Forensics Detectors
Residential Combustion Analyzer | NIST Calibration
No reviews
$365.00 $625.00

Exhaust Gas Analyzers

View all
Save 33%
5 Gas Analyzer | Automotive Exhaust Emission | CO, O2, HC, NOx, CO2 |
5 Gas Analyzer | Automotive Exhaust Emission | CO, O2, HC, NOx, CO2 |
No reviews
$1,995.00 $2,995.00
Save 50%
Exhaust Gas Analyzer Carbon Monoxide | Monoxor | Motorcycle, Forklift, Car
Exhaust Gas Analyzer Carbon Monoxide | Monoxor | Motorcycle, Forklift, Car
No reviews
$795.00 $1,595.00
Save 48%
NOx Gas Analyzer | Automotive, Diesel, Emissions, Flue, Pollution
NOx Gas Analyzer | Automotive, Diesel, Emissions, Flue, Pollution
No reviews
$1,195.00 $2,295.00

VOC Detectors

View all
Save 60%
VOC Gas Detector | USA NIST Calibration
VOC Gas Detector | USA NIST Calibration
No reviews
$395.00 $995.00
Save 60%
Formaldehyde Detector | NIST Calibration - Forensics Detectors
Formaldehyde Detector | USA NIST Calibration
No reviews
$395.00 $995.00
Save 44%
VOC Analyzer | USA NIST Calibration
VOC Analyzer | USA NIST Calibration
No reviews
$895.00 $1,595.00
Save 60%
Ethylene Detector | USA NIST Calibration
Ethylene Detector | USA NIST Calibration
No reviews
$395.00 $995.00