This menu shows a selection of the equipment you can buy from BaSystemen. Would you rather look through it together, or would you like some advice? Our people will be more than happy to help you.
This menu shows a selection of the equipment you can rent from BaSystemen. Would you rather look through it together, or would you like some advice? Our people will be more than happy to help you.
The DirectSense II from Graywolf Sensing Solutions is an advanced air quality monitor offering unrivalled precision and versatility for indoor air quality (IAQ) assessment.
The DirectSense II is designed to take up to eight sensors per probe, with a choice of sensors including Total Volatile Organic Compounds (TVOC), carbon dioxide (CO2), carbon monoxide (CO), ozone (O3), nitrogen dioxide (NO2), ammonia (NH3), oxygen (O2), hydrogen sulphide (H2S), nitric oxide (NO), sulphur dioxide (SO2), chlorine (Cl2), hydrogen cyanide (HCN), hydrogen fluoride (HF), hydrogen chloride (HCl), hydrogen (H2) and chlorine dioxide (ClO2). In addition to these gases, the instrument also measures relative humidity (%RH) and temperature (ºC).
One of the key features of the DirectSense II is the plug-and-play functionality of the sensors, which allows them to be swapped quickly for a different application. This ensures the right parameters for your specific monitoring requirements, whether these are routine checks in office environments or extensive analyses in industrial settings.
Connectivity is another important feature of the DirectSense II. As standard, the instrument can communicate with GrayWolf AdvancedSense meters or Windows tablets/laptops via cable or Bluetooth. It is also possible to connect several DirectSense II probes to the online platform at the same time. Using internal WiFi and GrayWolfLiveTM capabilities, you can follow the air quality parameters in real time on any device connected to the internet via GrayWolfLive Cloud.
Finally, the DirectSense II has an internal fan that contributes to an improved sensor response time (as required for VOC monitoring) and reduces internal heat, guaranteeing consistent and reliable measurements.
Whether the DirectSense II is used by environmental professionals, HVAC technicians, occupational hygienists or safety experts looking to improve indoor air quality, it is an indispensable indoor climate meter in your toolkit for comprehensive air quality monitoring.
6600 mAh lithium-ion rechargeable battery. Operating time 12+ hours with PID & NDIR sensors, without wireless use. Bluetooth or Wi-Fi switched on reduces operating time by ~20%.
Temperature
range: -25.0° to +70.0°C
resolution: ±0.3°C
Relative humidity
range: 0 - 100%RH
resolution: +/-3%RH (0 to 80%RH) or +/-2%RH (80 to 100%RH)
PID 10.6eV
range: 4 different ranges from ppb level up to 10,000ppm
resolution:
NDIR CO2 sensor
range: 0 - 6,000 ppm (or up to 10,000 or up to 20,000)
resolution: 1 ppm
Ammonia (NH3)
range: 0 - 100 ppm
resolution: 1 ppm
Ammonia high range (NH3)
range: 0 - 1000 ppm
resolution: <5 ppm
Arsine (AsH3)
range: 0 - 1 ppm
resolution: 0.03 ppm
Chlorine dioxide (ClO2)
range: 0 - 1 ppm
resolution: 0.03 ppm
Chlorine (Cl2)
range: 0 - 20 ppm
resolution: 0.02 ppm
Diborane (B2H6)
range: 0 - 10 ppm
resolution: 0.03 ppm
Fluorine (F2)
range: 0 - 1 ppm
resolution: 0.02 ppm
Hydrogen sulphide (H2S)
range: 0 - 50 ppm
resolution: 0.03 ppm
Ethylene oxide (C2H4O)
range: 0 - 100 ppm
resolution: 0.1 ppm
Formaldehyde (HCHO)
range: 0 - 1 ppm
resolution: 0.02 ppm
Phosphine (PH3)
range: 0 - 10 ppm
resolution: 0.1 ppm
Phosgene (COCl2)
range: 0 - 1 ppm
resolution: 0.02 ppm
Carbon monoxide (CO)
range: 0 - 500 ppm
resolution: 0.1 ppm
Carbon monoxide high range (CO)
range: 0 - 1000 ppm
resolution: 1 ppm
Ozone (O3)
range: 0 - 1 ppm
resolution: 0.02 ppm
Silane (SiH4)
range: 0 - 50 ppm
resolution: 0.1 ppm
Nitrogen dioxide (NO2)
range: 0 - 20 ppm
resolution: 0.02 ppm
Nitric oxide (NO)
range: 0 - 250 ppm
resolution: 0.2 ppm
Hydrogen (H2)
range: 0 - 1000 ppm
resolution: 2 ppm
Hydrogen fluoride (HF)
range: 0 - 10 ppm
resolution: 2 ppm
Hydrogen cyanide (HCN)
range: 0 - 100 ppm
resolution: 0.05 ppm
Oxygen (O2)
range: 0 - 25 vol%
resolution: 0.2 vol%
Sulphur dioxide (SO2)
range: 0 - 50 ppm
resolution: 0.1 ppm
Wide range
Enjoyment, safety and health
Helpful
Rental, sales and maintenance
Tell us what you are looking for and we will help you on your way.
Contact
BaSystemen BV
Protonstraat 13G
9743 AL Groningen, The Netherlands
+31505712124
info@basystemen.nl
Opening hours
Monday 08:00–17:30
Tuesday 08:00–17:30
Wednesday 08:00–17:30
Thursday 08:00–17:30
Friday 08:00–17:30
Saturday Closed
Sunday Closed
In urgent cases we are also reachable outside opening hours on +31 (0)50-5712124
Copyright 2026 BaSystemen B.V.