

WITH A technologically-advanced design, the G20 and G40 Portable Gas detectors from General Monitors set a new industry standard for personal safety monitoring.
A compact design featuring full-sized electrochemical cells for optimal personal safety, the robust G-series simultaneously monitors from one to four toxic gases, including oxygen deficiency and combustible gas.
Enclosed in a rugged, custom-formulated, stainless steel and propylene housing, the G-series is highly resistant to impact and chemical exposure. Designed to meet IP65 standards, both portable units are approved for damp and dusty environments. Additionally, a 10-hour minimum NiMH battery is standard for prolonged projects.
Both the G20 and G40 are ideal for applications in chemical plants; electric utilities; underground tunnels; confined spaces; construction; mining; oil/gas production; refineries; telecommunications; wastewater treatment and fire service.
Easy to use and set up, the G-series offers reliable personal protection right out of the box.
The large, easy-to-read display is particularly useful in confined spaces where personal manoeuvrability may be difficult.
A reversible LCD display flips 180 degrees for reading ease in either a hand-held or belt worn position. In the event of a hazardous gas condition, the unit notifies the user with a 90-decibel audible, flashing LED alarm and LCD display.
A highly intelligent Operating System offers simple menu-driven screens for ease of use. Using the G-Series datalogger, a Microsoft Windows-compatible datalogging software package, and an RS-232 connector on the battery charger, the G-series offers seamless data downloads of up to 28,000 records (about 110 hours) to a personal computer. Both models feature a programmable alarm set point for gas readings, time weighted average (TWA) and short-term exposure limit (STEL). Integrated into the intelligent Operating System, multilingual options communicate in English, Spanish or French.
With detection capabilities of one to four toxic gases, depending on the model, both units' full-sized electrochemical cells are interchangeable with General Monitors' Model TS400 fixed toxic gas detector.
Detectable gases include: Carbon monoxide (0 to 1,000 ppm), chlorine (0 to 20 ppm), chlorine dioxide (0 to 5 ppm), combustible (100 per cent LEL- 0 to 5 per cent v/v methane), hydrogen sulphide (0 to 100 ppm), oxygen deficiency (0 to 25 per cent volume - not approved for use in atmospheres greater than 21 per cent by volume oxygen).
Universal product approvals include UL, CUL and CENELEC (MSHA and CE Marking pending).
With more than 40 years of experience in the gas detection market, General Monitors is well known for its advanced, high performance instruments. With the G20 and G40 series of personal protection, General Monitors brings its worldwide reputation for safety, innovation, quality and reliability to the portable gas detection market.
For further information, contact Sherbiny for Commerce.