8 Channel Indoor Air Quality Monitor8 Channel Indoor Air Quality Monitor8 Channel Indoor Air Quality Monitor8 Channel Indoor Air Quality Monitor8 Channel Indoor Air Quality Monitor

8 Channel Indoor Air Quality Monitor

Used for air quality detection and data logging instrument designed for intermittent or continuous indoor air quality monitoring

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Why buy from Geneq? - find out more

YESAIR offers more features, flexibility and functionality than any other IAQ instrument on the market today with multi-channel operation, more than 30 different plug and play sensors to select from, including a particulate sensor, huge capacity data logging to SD flash card and much more.

Featuring an eight channel sensor capacity including RH and temperature, YESAIR can handle up to five additional internal plug & play sensors consisting of a maximum of three electrochemical toxic gas or oxygen sensors plus two high current draw sensors such as an infrared PID or catalytic, and a remote particulate sensor such as the YESDUST.

Positive sampling with internal pump ensures good representative samples are taken from all target areas or with diffusion for a quick, direct reading. Eight sensors are viewed live on the multi-line, backlit, LCD display as well as battery and data logging status.The optional YES Logger package consists of a 2 GB SD flash card, USB cable, YES Viewer software, and SD flash card reader. The SD flash card reader stores the data and can be transferred. Alternatively, data could be downloaded through the instrument using a standard USB connection. The YES Viewer PC software will allow users to analyze and graph data



  •  8 sensor capacity
  • > 30 plug & play sensors available to choose from, including electrochemical, catalytic, infrared & PID
  • Multi-function, easy to use menu
  • Light weight, contoured & comfortable handheld device
  • LCD displays all sensors
  • Sampling with internal sample draw pump or by diffusion
  • High capacity data logging with built-in SD flash card
  • Data logging software available
  • RoHS compliant circuit boards
  • CE certified 



  • Residential Buildings
  • Commercial Buildings
  • Hospitals
  • Laboratories
  • Research Facilities
  • Parking Garages
  • and many more



EnclosureRugged ABS / Polycarbonate (UL94 rated)
Weight567 g (20 oz)
Size7.8” x 3.1” x 3.9” (197 mm x 78 mm x 98 mm)

Standard: Rechargable 3.6 V NiMH battery
pack (8 hours continuous operation time
c/w plug-in battery charger / wall adapter
(100 - 240 V, 50 - 60 Hz)
Optional: Alkaline AA batteries x 3


Standard: Internal, automatic sample pump
for “active” sampling of target environment
Optional: Diffusion for quick, direct reading.

Memory> 1 million data points data logging to SD flash card
CalibrationAutomated through keypad
Information Record12 bit, multi-channel, user configurable
with removable flash card 2 GB.
YES Logger package option includes 2 GB SD
flash card, USB cable, YES Viewer software,
and SD flash card reader.
CommunicationMiniature USB port for changing settings
and configuring logging functions and
auxiliary port for using additional sensors
(i.e. YESDUST)

Internal 80 Db @ 4’. One set point
adjustment. Audible can be switched off
through menu

ENVIRONNEMENTAl (sensor dependant)
Operating Temperature5°C to 50°C (41°F to 122°F
Humidity0 - 99% RH non-condensing
CE CertifiedCE standards for safety:
I .S. EN61010-1:2001 (Ed.2)
CE standards for emissions: EN 50270:2006
CE standards for immunity: EN 50270:2006



Temperature & RH sensors, internal pump,
rechargeable batteries (3 x AA NiMH),
battery charger, capacity for 5 gas sensors
Temperature & RH sensors, diffuser cap, rechargeable batteries (3 x AA NiMH),battery charger, capacity for 5 gas sensorsYESAIR-D

Ammonia (NH 3) electrochemical, 0 - 50 ppm


Arsine (AsH 3) electrochemical, 0 - 2 ppm


Carbon dioxide (CO2) infrared, 0 - 5,000 ppmPNP-A+

Carbon dioxide (CO2) infrared, 0 - 10,000 ppm

Carbon dioxide (CO2) infrared, 0 - 20% volumePNP-A2
Carbon dioxide (CO2) infrared, 0 - 5% volumePNP-B
Carbon dioxide (CO2) infrared, 0 - 100% volume


Carbon monoxide (CO) electrochemical, 0 - 50 ppmPNP-C
Carbon monoxide (CO) electrochemical, 0 - 50 ppm
(H2 compensated for use in H2 background)
Chlorine (Cl2) electrochemical, 0 - 5 ppmPNP-I
Chlorine dioxide (ClO2),electrochemical, 0 - 1 ppmPNP-J
Combustibles (catalytic),0 - 100% LELPNP-X
Ethylene (C2H4),0 - 500 ppmPNP-E1
Ethylene oxide (C2H4O),0 - 20 ppmPNP-E2
Fluorine (F2) electrochemical, 0 - 2 ppmPNP-S
Formaldehyde (CH2O) electrochemical, 0 - 10 ppmPNP-Q
Hydrogen (H2) electrochemical, 0 - 1,000 ppmPNP-K
Hydrogen chloride (HCl) electrochemical, 0 - 30 ppmPNP-M
Hydrogen cyanide (HCN) electrochemical, 0 - 100 ppmPNP-N
Hydrogen fluoride (HF) electrochemical, 0 - 10 ppmPNP-O
Hydrogen sulphide (H2S) electrochemical, 0 - 50 ppmPNP-L
Nitric oxide (NO) electrochemical, 0 - 100 ppmPNP-E
Nitrogen dioxide (NO2) electrochemical, 0 - 5 ppmPNP-D
Oxygen (O2) electrochemical, 0 - 25% volumePNP-F
Ozone (O3) electrochemical, 0 - 1 ppmPNP-G
Phosphine (PH3) electrochemical, 0 - 1 ppmPNP-V
Silane (SiH4) electrochemical, 0 - 1 ppmPNP-W
Sulphur dioxide (SO2) electrochemical, 0 - 20 ppmPNP-P
TVOCs (PID),0 - 300 ppmPNP-Y+
TVOCs (PID),0 - 50 ppmPNP-Z+
External mounted nickel metal hydride packYESAIR BATT OPTION



YES logger package, 2 GB flash card, USB cable, YES
Viewer software, SD flash card reader


Handheld probe 10” with 30” of sample hoseYES-HHPROBE-10