Nephelometer sensors about sensorarray

[originalfoo]

Telaire SMART Dust Sensor SM-PWM-01C:

Notes:

1. Will detect micro water droplets (fog, mist) as particles (it can't differentiate)
2. SM-PWM-01C dust sensor cannot count particles or measure quantitatively; the size is only for reference

• Min particle size: 1μm 👍
• Output: Pulsed (2 outputs, one for PM2.5, one for PM10, use 30 second rolling average)
• Supply voltage : DC 5V ± 5%, Ripple <100mV
• Power consumption : < 90ma ± 10%
• Operating temperature range : -10°C ~ 45°C 👎 👎
• Operating humidity range : <85%RH 👍
• Warm-up time: 90 seconds
• Lifespan: ??
• Approx cost: ??

[originalfoo]

DSM501B:

• Min particle size: 0.7 μm 👍 👍
• Output: PWM - can be used to determine (probably the maximum) particle size
• Supply voltage : DC 5V±10%
• Power consumption : 90mA
• Operating temperature range : -10~ +65°C
• Operating humidity range : 95%RH or less (without dew condensation) 👍 👍
• Warm-up time: 60 seconds
• Lifespan: ??
• Approx cost: ??

[originalfoo]

Sensirion

• not yet released but probably will be within project timescales

[originalfoo]

SDS011:

Notes:

1. Probably uses so much power due to the fan - could potentially replace it with a piezo air pump?

• Min particle size: 0.3 μm 👍 👍 👍
• Output: UART and also 2xPWM (PM2.5 and PM10 separate for both)
• Supply voltage : DC 4.7–5.3V (ripple <20mV)
• Power consumption : 70mA±10mA 👍 with sleep <4 mA 👍 👍 👍
• Operating temperature range : -10 to +50°C 👎 👎
• Operating humidity range : 70%RH or less (without dew condensation) 👎
• Warm-up time: ??
• Lifespan: 8000 hours
• Approx cost: $40 (1 pc.), $38 (>100 pcs.)

[originalfoo]

Plantower PMS 7003:

• very small and looks very professional; need to find out more

[originalfoo]

iSmart:

Details are sketchy, might be "jack of all trades, master of none".

[originalfoo]

Load more here - can't find pricing, they seem aimed at automotive.

[originalfoo]

God mode - definitely not suitable for our nephelometer due to very limited temperature and humidity though :(

[originalfoo]

Graphene sensor - still in development stage

Also, there's an air quality index project that lists a bunch of sensors.

Mitsubishi PM & Pollen sensor - still in development stage?