Field Notes
Fixed Gas Detectors: A Buyer's Guide for Canada
A fixed gas detection system is a permanently mounted detector wired to a controller that continuously watches one or more locations for combustible, toxic, or oxygen-deficient atmospheres — no one...
Gas Detection Tubes: A Buyer's Guide for Canada
Gas detection tubes are glass or plastic tubes filled with a chemical reagent that changes color when a specific gas passes through it — you...
Read More
Water Level Meters: A Buyer's Guide for Canadian Groundwater Monitoring
Solinst 101 Basic, P2, P7, DrawDown, and Model 102 water level meters compared — probe type, tape material, and which model fits your monitoring program.
Read More
Landfill Gas Monitoring Equipment: A Buyer's Guide for Canadian Facilities
Compare the QED GEM5000, Geotech GA5000, and QED BIOGAS 5000 landfill and biogas analyzers — CH4/CO2/O2 monitoring, certifications, and buy-vs-rent guidance for Canadian facilities.
Read More
What Is a Barologger? Barometric Compensation for Water Level Dataloggers Explained
A barologger is a small datalogger that records only atmospheric pressure and temperature, deployed above the water table so software can subtract barometric noise from...
Read More
Water Level Data Loggers: Buyer's Guide for Canadian Groundwater Monitoring
Water level data loggers record groundwater and surface water level continuously between site visits. This guide compares absolute vs. vented models, depth ranges, and battery...
Read More
Soil Vapor Extraction Systems: How They Work and When You Need One
Soil vapor extraction (SVE) pulls volatile organic compounds out of contaminated soil by applying vacuum to wells screened above the water table, drawing VOC-laden vapor...
Read More
Coolant Recycling Systems: How They Work
A coolant recycling system filters chips, fines, and tramp oil out of metalworking fluid while it's still in the sump — no drain-down, no full...
Read More
Cartridge Filter Housing Configurations: Multi, High-Flow & Sanitary Compared
Compare single, multi-cartridge, high-flow and sanitary filter housing configurations — flow rate, cartridge count, materials and ASME code, with ERE's RKI and Shelco housing families.
Read More