OPTICAL PARTICLE COUNTERS
MET ONE HHPC 6+ HANDHELD PARTICLE COUNTER
![](https://www.epfl.ch/labs/hobel/wp-content/uploads/2020/02/MET-ONE-HHPC-6-HANDHELD-PARTICLE-COUNTER.jpg)
MET ONE HHPC 6+ handheld optical particle counter is suitable monitoring of controlled environments and mini-environments, easy filter leak troubleshooting for particle-contamination issues, spot-checking critical areas, and targeting particle generation within process equipment. It has up 6 channels detection and the range of particle detection is from 0.3 μm to 10.0 μm.
GRAYWOLF PARTICLE COUNTER 3500
![](https://www.epfl.ch/labs/hobel/wp-content/uploads/2020/02/GRAYWOLF-PARTICLE-COUNTER-3500.jpg)
PC-3500 is a stand-alone optical particle counter that measures the concentration is the size range of 0.3 μm to 25.0 μm with 2.83 LPM flow rate. It can measure up to 6 channels of simultaneous data and it can approximate mass concentration in μg/m³ with density and refractive index corrections, including PM2.5, PM10 and TSP.
METONE PARTICLE COUNTER 804
![](https://www.epfl.ch/labs/hobel/wp-content/uploads/2020/02/METONE-PARTICLE-COUNTER-804.jpg)
Met One Instruments’ 804 handheld optical particle counter is a 4-channel portable particle counter that counts particles 0.3 microns to 10.0 microns. The unit is configurable, allowing you to choose your particle sizes of interest from seven sizes: 0.3, 0.5, 0.7, 1.0, 2.5, 5.0 or 10.0 microns.
NONDISPERSIVE INFRARED CO2 SENSORS
HOBO® MX CO2 Logger (MX1102)
![](https://www.epfl.ch/labs/hobel/wp-content/uploads/2020/02/HOBO®-MX-CO2-Logger-MX1102-1024x592.jpg)
The HOBO MX CO2 data logger records carbon dioxide, temperature, and relative humidity (RH) data in indoor environments using non-dispersive infrared (NDIR) self-calibrating CO2 sensor technology and integrated temperature and RH sensors.
HOBO Data Logger U12-012
![](https://www.epfl.ch/labs/hobel/wp-content/uploads/2020/02/HOBO-Data-Logger-U12-012.jpg)
The instrument can record real-time temperature, relative humidity and light intensity. It can also record CO2 data when connecting with Telaire 7001 via CO2 cable.
TELAIRE 7001
![](https://www.epfl.ch/labs/hobel/wp-content/uploads/2020/02/TELAIRE-7001.jpg)
The Telaire 7001 handheld carbon dioxide sensor features patented Absorption Infrared technology. Each sensor measures CO2 (0-2500 ppm) and temperature with quick response and can calculate and display real-time ventilation rates. It is capable of estimation of ventilation rate per person of measured rooms.
OTHER MULTISENSORS
GRAYWOLF ADVANCEDSENSE PRO
![](https://www.epfl.ch/labs/hobel/wp-content/uploads/2020/02/GRAYWOLF-ADVANCEDSENSE-PRO.jpg)
Is a moderately accurate sensor with high response, which is suitable for both quick walk-through surveys and for long term IAQ trending in real buildings. It can detect CO2, CO, TVOCs, relative humidity, air temperature, SO2, NO2 and formaldehyde.
OCCUPANCY SENSORS
HOBO® Occupancy/Light Data Logger (UX90-005x/-006x)
![](https://www.epfl.ch/labs/hobel/wp-content/uploads/2020/02/HOBO®-Occupancy_Light-Data-Logger-UX90-005.jpeg)
![](https://www.epfl.ch/labs/hobel/wp-content/uploads/2020/02/HOBO®-Occupancy_Light-Data-Logger-UX90-006.jpg)
The HOBO Occupancy/Light data logger monitors room occupancy up to 5 or 12 meters away (depending on the model) as well as indoor light changes with its integrated sensors. Using HOBOware®, you can easily configure both channels to record occupancy and light on and off conditions for building energy audits.