MSA’s new ALTAIR 4 Multigas Detector for LEL, CO, H2S, and O2 raises the standard for personal Multigas detectors by offering a combination of features you won’t find in competitive models. The ALTAIR 4 is the only portable gas detector with an optional MotionAlert™ feature if a user should become disabled due to unforeseen hazards.

The MSA Z Gard employs a metal oxide solid-state sensor, which is usually used for underground garage monitoring and ventilation control applications. Any of the MSA Z Gard S Sensors operating as a system within the Z Gard Gas Monitor are automatically recognized on a RS-485 network. The 4-20mA analog output can be integrated with PLC, DCS, or building automation systems.

We offer a complete line of Calibration kits, Calibration gases, and regulators. We also carry standards for the calibration and verification of water quality instruments.

Complete confined space entry kits for multiple confined space applications. Used for lifting and lowering materials and personnel via the hoist, while having the ability to use an SRL in conjunction with the rest of the system for fall arrest and emergency evacuation.

The Heron H.OIL interface meter is used to measure the thickness of floating or sinking hydrocarbon products in groundwater accurately, reliably, safely and economically. The Heron H.OIL is certified intrinsically safe for use in explosive environments.

The HI 9828 Multiparameter Portable Meter is a comprehensive analytical instrument, capable of measuring up to 13 critical water quality parameters (6 measured and 7 calculated), including pH, EC/TDS, ORP, DO, atmospheric pressure, and temperature. Some of the most advanced capabilities available are incorporated into this portable meter.

* Watertight, crushproof, and dust proof
* Open cell core with solid wall design
* Automatic Pressure Equalization Valve
* Comfortable rubber over-molded handle
* Stainless steel hardware and padlock protectors
* Pick N Pluck™ with convoluted lid foam
* Lifetime Guarantee of Excellence

As Instrument Specialists, we understand your need for a reliable and trusted source of products and information. Demesa has established relationships with reputable and leading manufacturers of safety and environmental instruments for all your monitoring solutions. We take great pride in trying to provide you with the best equipment for your application as well as the best equipment known to the industry. Whether you are looking for instruments for confined spaces, industrial hygiene, water quality, VOC or landfill applications, we are here to help you achieve the results you want. We carry a wide variety of fixed detection systems to cater to your requirements from manufacturers such as MSA, and RKI Instruments. We can provide systems for numerous applications/configurations: from the single point stand-alone Oxygen (O2) detection system to a 32-point Carbon Monoxide (CO) multi-floor parkade detection system with ventilation control. Demesa can supply design, configuration, material, installation and certification of your particular application.

Most users perform the daily bump test of their instruments. Some manufacturer recommends a monthly calibration. It is also recommended that a third party performs an inspection and calibration on an annual basis. We offers calibration services on all the instrument we sell including the ones we do not sell. We can calibrate your instrument and provide a certificate of calibration using NIST traceable standards instrument specialists for detail. Your instruments are certified according to the manufacturer's specifications. Often our certification process exceeds the manufacturer's specification.

An Instrument Management Program is based upon your specific needs and requirements. A partnership would allow you to benefit from our expertise such as instrumentation knowledge, improved instrument operation, reduced repair and rental cost, and improved equipment utilization. Letting Demesa take care of your instruments can be a profitable decision. It would allow your employees to spend more time on billable hours and less time on servicing instruments. We can manage your inventory from either your location or our location. We'll take care of all the logistics for you, we will customize this program to suit your needs as all needs are different and no two customers work alike.

You will find our technicians to be professional and most importantly very knowledgeable. Our technicians are factory trained and receive yearly refreshers. All repairs done to your instruments are done to manufacturers specifications and we only use factory replacement parts. We also offer replacement equipment (at a minimal cost) while your instrument is in for service. All replacement instruments are calibrated to manufacturer's specs and certified. As a courtesy we include a copy of the calibration certificate for your records. A pre and post calibration is also offered at a minimal charge.

We believe that investing and training are one of the same. When investing thousands of dollars on instruments, you need to know that your field technicians are able to utilize them properly and to best of their capabilities. There are many questions that need to be answered when purchasing new equipment. Demesa provides customized training programs for all portable instruments. This service is offered at your location, so all you need to do is assemble your field technicians.

On-site service is a very popular service and is quickly becoming the best way of taking care of instruments for many of our customers. There are several great advantages of having your instruments serviced on-site such as: Same-day turnaround: you do not have to pack-up and send out your instrument for service via courier and wait for it to come back. We service the instrument while you wait - often an instrument can be serviced and returned in service in less than an hour making sure that you do not have to cancel work or share instrument with other employees. On-site service is truly a time saver. We also provide full service for fixed detection systems.

It is imperative and in most instances, mandatory to be able to check the responses of your instruments. This is to either validate your readings or to ensure and demonstrate that the instruments performs and therefore protects the life of the user. We offer a complete line of calibration kits, Calibration gases, regulators. We also carry standards for the calibration and verification of water quality instruments. For regular maintenance, it is also important to replace filters, sensors and various consumable parts. Demesa can supply you all the required replacement parts for your portable instrument or fixed detection system.