Extech test and instruments (Air Flow Meters, Air Quality Meters, Battery Testers, Cable Tracers, Calibrators, Circuit Identifiers, Clamp Meters, Continuity Testers, Distance Meters, Electromagnetic Field Meters, Gas Detectors & Analyzers, Ground Resistance Testers, Heat Index Meters, Humidity Meters & Hygrometers, Industrial Imaging & Inspection, LCR Meters, Light Meters, Magnetic Field Meters, Megohmeters / Insulation Testers, Milliohm / Micro-Ohm Meters, Moisture Meters, Multimeters, Oscilliscopes, Phase & Motor Rotation, Power Analyzers, Power Supplies, Pressure Meters & Manometers, Receptacle Testers & Circuit Analyzers, Refractometers, Sound Meters / Decibel Meters, Stopwatches, Timers, & Clocks, Tachometers, Thermometers, Thickness Gauges, Vibration Meters, Voltage & Current Testers, Water Quality Meters)