Profile: Bascom-Turner Instruments, Inc. is a manufacturer of accurate and rugged gas detectors for utilities & other industrial customers. Our gas detectors are portable units designed to be intrinsically safe. All models feature a built-in pump, a fast, sensitive mode for leak detection, digital displays, and visual and audible alarms. Our gas detectors can be automatically calibrated on a stand-alone basis or at network-based docking stations. Gas-Ranger™ is a robust natural gas detector commonly used by construction and maintenance crews.