KXL - 801 Handheld Carbon Monoxide Meter Sound Light Vibration Alarm Gas Leak Tester Gauge 0 - 2000PPM
KXL - 803 Handheld Oxygen Meter Gas Analyzer Sound Light Vibration Alarm for O2 Content Detection
KXL - 805 Portable Formaldehyde Tester Methanal Indoor Gas Analyzer 0-5PPM
Laser Level Horizon Vertical 250cm Measure Tape Ruler Aligner