Documentation-led reviews that separate verified specifications from marketing claims.
A handheld carbon monoxide meter reading 0 to 1000 ppm with low and high alarms at 35 and 200 ppm, a short term exposure limit alarm, audible and visual alerts and a backlit display that also shows temperature.
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A handheld weather meter that shows wind speed in five units, temperature, humidity, dew point, altitude, barometric pressure and wind chill, holds 16 sets of pressure data and has a tripod socket.
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A rechargeable chlorine detector with an electrochemical sensor reading 0 to 50 ppm at 0.1 ppm resolution, a response time under 30 seconds, adjustable audible, visual and vibrating alarms and a supplied calibration certificate.
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A pair of vented digital thermo hygrometers reading 0 to 70 C and 10 to 99 percent relative humidity, sampling every 10 seconds, specified to plus or minus 1 F and plus or minus 3 percent RH, each running from an LR44 button cell.
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A 320 by 240 thermal camera that plugs into an iOS device, with a focusable 32 degree lens, a frame rate stated as under 9 hertz, a detection span from minus 40 to 626 F, nine palettes and four emissivity presets.
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A handheld solar irradiance meter reading 0 to 1999 watts per square metre or 0 to 634 BTU per square foot per hour, with a selectable 199.9 or 1999 scale, maximum and minimum tracking, data hold and manual zeroing.
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A pocket weather meter reporting wind speed, wind temperature, wind chill, relative humidity, dew point, barometric pressure and altitude, with a 16 record pressure log and a tripod mount.
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A clip on sulfur dioxide monitor built on an electrochemical sensor, reading 0 to 20 ppm in 0.1 ppm steps, with adjustable high and low alarms signalled by sound, flash and vibration and a rechargeable cell quoted at 8 to 9 hours.
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A handheld vane anemometer reading wind speed, air temperature and wind chill in five speed units, with a Bluetooth link to a phone app, a data logger, export to spreadsheet or text and a quarter inch tripod socket.
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A two part circuit breaker finder with a transmitter that connects at the outlet or fixture and a receiver that scans the panel, stated to work on 90 to 120 V AC circuits and carrying a built in GFCI test function.
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A rechargeable four gas monitor for oxygen, carbon monoxide, hydrogen sulfide and explosive gas, factory calibrated, with zero and span calibration, audible, visual and vibrating alarms, alarm value storage, a stated detection error better than plus or minus 5 percent of full scale and a response time under 30 seconds.
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A tracer gas service kit built around a hydrogen leak detector for a 5 percent hydrogen and 95 percent nitrogen mixture, with a full colour screen, sweep mode, automatic reset to ambient air, a mechanical pump, three UV lights at 395 to 415 nm, couplers, hose and a regulator.
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