The Humimeter GF2 building moisture meter is a professional and versatile building moisture meter which can be extended with various sensors to match your individual needs. As the GF2 offers such a wide variety of functions we recommend some well proven configurations for popular tasks in the building industry.
Especially notable is the blazingly fast nondestructive measurement of floor screed without using the tedious CM method.
The GF2 building moisture meter is able to perform lots of measurements relevant for the building industry including: building moisture, air humidity, indoor climate, dew point, equilibrium moisture content, air and surface temperature as well as long-term recording of climate data, incl. material moisture sensor. Optionally available external air humidity and infrared temperature sensors, PC software for data archiving and graphic display of climate data.
Art. No.: 13140 Humimeter GF2 professional building moisture meter
| Art. No. | Picture | Extended Accessories |
|---|---|---|
| 12278 | ![]() | humimeter USB data interface module with LogMemorizer measuring data recording and analysing software on USB flash drive incl. USB cable for PC |
| 12514 | ![]() | Air humidity and temperature sensor for humimeter GF2 building moisture meter |
| 12032 | ![]() | Humidity and temperature sensor with 2 meters connection cable |
| 12004 | ![]() | LF_TB 120 Precision humidity and temperature plug-in sensor for material moisture Sensor head 0.3 m stainles tube with steel sinter cap and 2 meters connecting calble |
| 13224 | ![]() | Extension cable of 3 meters length for humimeter RH2 and GF sensors |
| 13066 | ![]() | Integrated sensor for parquet floor GF Measurement of relative humidity and temperature |
| 12857 | ![]() | Cable for integrated sensor for parquet floor GF for connection of the integrated sensor for parquet floor GF (art. no. 13066) to a humimeter device, cable length 2 meters |
| 13159 | ![]() | Humidity and temperature sensor with ∅ 8mm plastic sensor tube. Powered by RH2 resp. GF2, with 2 meters sensor cable, Suitable for measuring bush for floor screed (Art. No. 13160) |
| 13160 | ![]() | Set of measuring bushes for floor screed Plastic bush for driving in a bore hole of a diameter of 12mm. 20 bushes incl. plug and one hammering aid. Suitable for humidity and temperature sensor (Art. No. 13159) |
| 12513 | ![]() | Non-contact infrared temperature sensor for humimeter GF2 IR- temperature measurement -25 to +125°C / -13 to 257°F. Measuring area: ∅ 16cm at a distance of 1 meter |
| 12964 | ![]() | CO2 Sensor for humimeter GF2 Measuring range: 0 to 5000 ppm accuracy (at 25°C and 1013 mbar): < +/- 50 ppm +3% of measuring value operating temperature -10 to +60 °C Measuring intervall: approx.. 10 sec, dimensions ∅28x108mm |
| 13141 | ![]() | External conductance electronics for GF2 pluggable electronics box with 1 meter cable for connecting external conductivity sensors with BNC connector incl. connecting cable (Art. No. 12881) |
| 12847 | ![]() | humimeter hand electrode with 10 replacement tips 16mm and 10 replacement tips 23mm. For connection to humimeter GF2 Art. No. 13141 is required! |
| 13011 | ![]() | Pair of plug-in electrodes For determining of water content of hardened and set building materials. With 10 measuring tips of each 40 and 60mm length. For connection to humimeter GF2 Art. No. 13141 is required! |
| 13012 | ![]() | Pair of flat electrodes, 300mm length For determination of water content in floor screed resp. insulation, especialy in boarder and floating joints. For connection to humimeter GF2 Art. No. 13141 is required! |
| 12881 | BNC connecting cable ∅4mm, 100cm length (spare part) | |
| 12630 | ![]() | humimeter WLW Hammer (ram electrode) with BNC cable, without measuring tips. For connection to humimeter GF2 Art. No. 13141 is required! |
| 12146 | ![]() | Set of 20 replacement tips for measuring electrodes, without isolation 40mm long |
| 11775 | ![]() | Set of 20 replacement tips for measuring electrodes, without isolation 60mm long |
| 11482 | ![]() | Set of 2 replacement tips for measuring electrodes, isolated, 60mm long |
| 12512 | ![]() | Plastic case for humimeter GF2 |
| 11929 | Plastic case for humimeter BLW, WLW, BL2 and GF2 | |
| 13051 | Wall holder / anti-theft protection for GF2 |
We recommend the following proven configurations for the GF2 building moisture meter. These are only recommendations you can choose freely which functionality your device should support. This versatility makes our building moisture meter the perfect device for the building industry – and if you discover that you need more functionality, all additional sensors can be ordered subsequently
| Art. No. | Configurations for craftsmen |
|---|---|
| 13739 | Sensor package Property management, for connection to humimeter GF2: + 13141: Conductance electronics |
| 13743 | Sensor package Painter, for connection to humimeter GF2: + 13141: Conductance electronics |
| 13744 | Sensor package Building surveyor, for connection to humimeter GF2: + 13141: Conductance electronics |
| 13745 | Sensor package Restoration and dehumidification, for connection to humimeter GF2: + 13141: Conductance electronics |
| 13746 | Sensor package Floor layer, for connection to humimeter GF2: + 13141: Conductance electronics |
| 13747 | Sensor package Master builders, for connection to humimeter GF2: + 13141: Conductance electronics + 12847: hand electrode for measurement of wood and plaster + 13011: GF2 Pair of plug-in electrodes + 13012: GF2 Pair of flat electrodes, 300 mm length + 12514: Air humidity and temperature sensor 0..100% + 12513: Non-contact infrared temperature sensor measurement -25 to +125°C + 11929: GF2 plastic case, dimensions 450 x 360 x 106 mm -> all further available sensors can be added subsequently! |
| 13748 | Sensor package Carpenters, for connection to humimeter GF2: + 13141: Conductance electronics |
The humimeter GE1 screed and concrete moisture meter offers fast, professional and nondestructive measurements of concrete moisture and screed moisture. It offers a lot of features like automatic temperature measurement and compensation, automatic conversion to CM% and digit calibrations curves for special products.
article no. 13400 humimeter GE1 screed and concrete moisture meter
Prevent your home against mould with the humimeter mould and air guard. The device sends an alarm to you if there is any danger of mould formation and tells you when it is necessary and possible to aerate the room.
Airing cellars and rooms is one of the most important activities when it comes to preventing mould. However, to get rid of unwanted moisture the right conditions have to prevail.
So the critical question is: When to air?
From a technical point of view this question is answered easily: Airing is sensible if the absolute humidity outdoors is lower than in the room. If this conditions does not hold airing the room will actually increase the humidity level in the room.
The problem humans encounter when deciding whether to air or not is actually determining the absolute humidity which is almost impossible without using a proper measuring device. So to guarantee correct airing of the room one has to rely on air guards like the humimeter mould and air guard
Art.No.: 13555 humimeter SW1 mould and air guard – to prevent mould
| Art. No. | Picture | Extended accessories |
|---|---|---|
| 12278 | ![]() | humimeter USB data interface module with LogMemorizer measuring data recording and analysing software on USB flash drive incl. USB cable for PC |
| 12485 | ![]() | humimeter USB data interface module VERSION FOR RECHARGEABLE BATTERIES with LogMemorizer measuring data recording and analysing software on usb flash drive incl. USB cable |
| 13340 | ![]() | Internal Bluetooth class 1, integrated module class 1 (up to 100 metres) for humimeter mould and air guard devices – to prevent mould. Combinable with USB interface. |
Health threat by mould:
The formation of mould always goes along with an increased moisture concentration in your room. Already a relative humidity of 70% encourages the growth of mould in living spaces. An increased air humidity can be caused by conventional activities in the household like cooking, taking a shower or drying of laundry. Also plants and humans release water, which is emitted into the surrounded air. Furthermore, in new buildings residual moisture from building material can be released. In order to prevent an infestation or the increased growth of mould spores in living spaces, simple measures like reasonable ventilation and appropriate heating can be taken.If your living area is already infested with mould, this should be treated rapidly and effectively, and a new formation should be prevented. The appearance of mould can also cause allergic reactions of the body as well as inflammatory reactions and infectious diseases.

Function Preventing and avoiding mould:
Position the mould and ventilation monitor on the provided holder in your room. Switch on the instrument and select the calibration curve Risk of mould. After a adjusting time of a few minutes the instrument clearly shows the level of risk (no/little/increased/high/very high risk of mould).

Function ventilation monitor:
Switch on the instrument and select the calibration curve Absolute humidity. Measure the absolute air humidity in your room, and subsequently the absolute air humidity outdoors (hold the instrument out of the window or go outside). Please ensure an adequate adjusting period! If the absolute air humidity outdoor is lower than the air humidity inside the room, a riskless ventilation is possible. On the other hand, if the outdoor measuring value is higher than the indoor one, ventilation will increase the risk of mould.
Handling:
If for example in the basement the humimeter SW1 shows a high level of mould risk, it has to be acted quickly to prevent the appearance of mould. Measure the absolute air humidity indoors as well as the absolute air humidity outside via the function Ventilation monitor.
Example 1:
Absolute air humidity indoor: 14.5 g/m³, absolute air humidity outdoor: 8.5 g/m³You can open the windows for ventilation without any risk. With this measure the situation is improved significantly, reducing the risk of mould (preventing and avoiding mould).

Example 2:
Absolute air humidity indoor: 13.8 g/m³, absolute air humidity outdoor: 24.4 g/m³
If you open the windows for ventilation, this will worsen the situation, as the humidity inside the room will increase further. This will provoke the appearance of mould.
In this case we recommend using a moisture absorber or awaiting more favourable weather conditions.
