Research-based buying guides that compare the leading options by documented specifications, real use cases and value.
Seven carbon dioxide instruments sorted by what each listing states: NDIR monitors for watching a grow space, and a controller that switches enrichment and exhaust equipment for you.
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The LT300 states lux and foot candle readings to 40,000 lux with a remote sensor, peak and relative modes. The LT45 is described in its title as a colour LED light meter reading to 400,000 lux.
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Both cover 35 to 130 dB. The SL510 states Class 2 with 1 dB accuracy, fast and slow response and min and max. The 407732 is supplied as a kit with a calibrator.
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The BT-100 states 0.67 to 67.1 mph at 2 percent of reading with eight vanes and a tripod thread. The TS-301 states six units, a 2.26 inch backlit screen and humidity as well as temperature.
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The TP50 states 2 to 3 percent relative humidity and 1 F accuracy with a comfort icon and high and low records. The 605i is a Bluetooth probe with a bendable head and automatic dew point.
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The EN300 states air velocity, light, humidity, temperature and sound level in one handheld. The 605i states humidity and temperature with a 90 degree bendable probe, Bluetooth and automatic dew point and wet bulb.
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The Lite states PM2.5, PM10, CO2, temperature and humidity with HomeKit support. The CO2 Monitor states a Swiss Sensirion NDIR sensor, wider stated ranges and remote monitoring through Qingping IoT.
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The H5106 reports indoor PM2.5 with a stated accuracy of 15 micrograms per cubic metre. The IQAir bundle adds a weatherproof outdoor monitor with two laser sensors and up to eight parameters.
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The View Plus states radon, PM2.5, CO2, VOC, humidity, temperature and pressure on WiFi. The H5106 states PM2.5, temperature and humidity with a published accuracy figure for each.
Read Guide→Both measure PM2.5 with temperature and humidity. The H5106 states PM2.5 accuracy of 15 micrograms per cubic metre and a two second refresh; the S1 states a laser particle sensor and an AQI display.
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Both state CO2, VOC, humidity, temperature and pressure over Bluetooth. The Wave Plus adds radon; the Wave Enhance drops radon and adds noise and light sensors.
Read Guide→The View Plus adds PM2.5, CO2, VOC and pressure to radon on WiFi. The Corentium Home 2 is a Bluetooth radon monitor with temperature and humidity and nothing else.
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