50 ppm for sale, brand-new and used.

(On Products over $75) General NGD268 Portable Gas Leak Detector New - Factory Authorized Distributor - Factory Warranty Quick response. 3-color leak indication. LED & audio indication.

JDSU/Acterna/TTC 209OSP DS1 T-Carrier Analyzer JDSU/Acterna/TTC 209OSP DS1 T-Carrier Analyzer with options 209OSP-1 - DC Measurements 209OSP-2 - TDR Measurements 209OSP-3 - Channel Monitor 209OSP-4 - Advanced Stress Patterns 209OSP-5 - Enhanced ESF 209OSP-6 - Smart Loopback/Command Codes 209OSP

For your Consideration is a Portable Microcell Stimulus Transmitter Berkeley Varitronics Lizard 2462 Mhz CW in Mint Condition Perfect for LWAN / cellular coverage analysis, can be used indoor or outdoor with its Water Resistant Case Included: Rugged Pelican case for entire kit, Lizard Transmitter ( with in its own redundant Pelican case !) Antennae , 2 Ni-MH 9.6V Batteries, Charger , AC adapter and cord, Built and made in the USA! Frequency information: 2400-2485 MHz &nb

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Acterna / TTC T-Berd 211/1/2 T-Carrier T1 Analyzer Comes with 30-day warranty and a Manual. Options 1: G.821 Analysis Option Options 2: Spectral Analysis Option - Isolateds network jitter problems. T-Berd T-Carrier Analyzer Features: Automatic configuration and results summary Automated sequences of test patterns for one-step circuit qualification and stress tests Pulse shape analysis, signal level and frequency, simplex current, and wander measurements Out-of-band ESF loop codes sta

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New, never used, was stored with installed AA batteries. Batteries leaked -- the contact slightly corroded but are cleaned (see picture). Features Hand-Held and battery operated100kHz to 2900MHz measurement range (2060MHz for 3201)125 Ch/sec scan rate (12.5 Ch/sec for 3201)Built-in 2.9GHz frequency counter (2GHz for 3201)High sensitivity (-117 dBm max)Detects Wide band and Narrow band FM, AM and Single Sideband

Multi-Gas Monitor Drager X-am 2000 Gas Monitor EX,O2,CO, H2S,w/ alkaline battery - Unlimited Life Instrument With Data Logger - 3 Year Warranty The Drager X-am 2000 is the new generation of gas measurement instruments, which is adjusted to the requirements for personal monitoring. With an integrated rubber boot, gas access from two sides, which prevents the sensors of being covered, and dust and water density according to IP 67 the Drager X-am 2000 offers much more reliability.

INDUSTRIAL SCIENTIFIC VENTIS MX4 4 Gas Detector, O2-LEL-CO-H2S Monitor with wall charger VTS-K1231100101……………………………… Ventis MX4 -

INDUSTRIAL SCIENTIFIC MX4 iQuad 4 Gas Detector, O2-LEL-CO-H2S Monitor MX4-K12311……………………………… MX4 iQuad -

TELAIRE 7001 Handheld Indoor CO2 Temperature Air Quality Monitor Part # 7001 Description; The Telaire 7001 Co2 Monitor measures and displays CO2 and temperature data simultaneously Operating on 6 VDC from external AC/DC Adaptor (included) or four AA batteries (not included 70+ hours operation typical) this sensor uses patented Absorption Infrared? technology for CO2 measurement to a resolution of -1 ppm. This sensor is not designed for use with Intrinsically Safe (IS) loggers.

MSA ALTAIR® 5X Pumped Multigas Detector with MSA XCell™ Sensor Technology MSA Part Number: 10116926 Former Sales Demo unit - gently handled

UEi CD200 Combustible Gas Leak Detector New - Factory Authorized Distributor - Factory Warranty UEI CD200 Shown

The Combustible Gas Leak Detector helps professional service engineers detect combustible gas leaks in residential and small commercial applications. The semiconductor sensor ensures a rapid response and the adjustable tic rate helps pinpoint the precise location of the leak. The combination of an 18 inch flexible hose and a tip-based worklight make the Combustible Gas Leak Detector especially useful for difficult to access locations.

The SnifIt 50 is in very good condition. Valuable tool for home inspectors, homeowners, insurance adjusters, contractors and maintenance professionals. The 50 series monitors and detect CO levels of between 0 and 1999 ppm in room air quickly and accurately.

Built to Industrial Scientific’s highest quality and reliability standards, GasBadge® Pro provides a lifetime of gas hazard protection with more features than any other single gas monitor available.

ST302 Battery is not included according to shipping company's requirement. These instruments are designed to measure carbon dioxide in the range from 0 to 9,999 ppm. This range with good accuracy of meter allows users to conduct the most precise quantitative measurements of carbon dioxide in the space.

ST303 Battery is not included according to shipping company's requirement. These instruments are designed to measure carbon dioxide in the range from 0 to 9,999 ppm. This range with good accuracy of meter allows users to conduct the most precise quantitative measurements of carbon dioxide in the space.

Formaldehyde(HCHO) is one of the most commonly poisonous substances found in daily life and industry.