Technical data

Moisture meter	GMP 2-15
Article number	‎3 601 K78 1..‎‎‎‎
Material moisture measuring procedure	Resistance measurement
Measuring range
Relative humidity	5 % to 95 %
Ambient temperature	−20 °C to +50 °C
Unit of measurement
Moisture content	%
Ambient temperature	°C
Measuring accuracy (typical)
Conductivity (material moisture content)^A)	±1 %
Relative humidity^A) at:
5 % to 90 %	±3 %
91 % to 95 %	±5 %
Ambient temperature	±1 °C
General
Operating temperature	−20 °C to +50 °C
Storage temperature (without rechargeable battery)	−20 °C to +70 °C
Max. relative humidity (non-condensing)	95 %
Max. altitude	2000 m
Pollution degree according to IEC 61010-1	2^B)
Power supply
Lithium-ion battery pack	3.7 V
Non-rechargeable batteries (alkaline manganese)	2 × 1.5 V LR6 (AA)
Operating time, approx.^C)
With lithium-ion battery pack	25 h
With non-rechargeable batteries (alkaline manganese)	40 h
Weight^D)	0.19 kg
Dimensions (length × width × height)	235 × 62 × 44.5 mm
Protection rating	IP65
Lithium-ion battery pack	BA 3.7V 1.0Ah A
Article number	1 607 A35 17H
Charging connection	USB Type‑C®
Recommended USB Type-C® cable	‎1 600 A01 6A8
Rated voltage	3.7 V
Capacity	1.0 Ah
Recommended ambient temperature during charging	+10 °C to +35 °C
Recommended ambient temperature during operation and during storage	–10 °C to +45 °C
Power supply (accessory)
Output voltage	5.0 V
Minimum output current	500 mA

B): Normally only non-conductive pollution occurs, although occasional temporary conductivity caused by condensation can be expected. Allow the measuring tool to acclimatise and remove condensation from the probe tips before taking a measurement.

Material moisture measuring range
Material	Minimum	Maximum^A)
Wooden materials:
<Construction wood>	6.7 %	100.0 %
<Abachi>	6.1 %	97.1 %
<Abura>	5.7 %	100.0 %
<Afzelia>	6.1 %	75.9 %
<Agba>	5.1 %	94.2 %
<Alder>	6.7 %	94.0 %
<Ash>	7.7 %	95.8 %
<Beech>	6.2 %	93.2 %
<Birch, european>	4.6 %	95.9 %
<Cherry, american>	6.6 %	96.1 %
<Cherry, european>	5.8 %	95.4 %
<Douglas fir, american>	6.7 %	90.4 %
<Douglas fir, european>	7.7 %	85.9 %
<Elm, european>	6.4 %	88.8 %
<Fir>	8.4 %	91.1 %
<Iroko>	6.4 %	85.5 %
<Larch>	7.0 %	100.0 %
<Limba>	7.5 %	91.8 %
<Makore>	6.7 %	88.7 %
<Maple, american>	6.3 %	90.5 %
<Maple, european>	6.2 %	99.3 %
<Meranti>	6.9 %	94.1 %
<Oak red>	5.4 %	99.4 %
<Oak, american>	5.9 %	99.7 %
<Oak, european>	6.9 %	97.5 %
<Pine ponderosa>	8.2 %	96.2 %
<Pine, european>	7.3 %	97.4 %
<Poplar>	7.1 %	98.5 %
<Spruce>	8.0 %	97.3 %
<Teak burma>	7.0 %	85.1 %
<Teak plantation>	7.0 %	56.6 %
<Walnut, american>	6.5 %	98.2 %
<Walnut, european>	6.0 %	95.5 %
<Western red cedar, canadian>	5.3 %	96.0 %
<Western red cedar, european>	6.9 %	96.0 %
<Willow>	7.5 %	100.0 %
<Yew>	7.2 %	71.9 %
Construction materials:
<Anhydrite screed>	0.1 %	9.2 %
<Brick>	0 %	20 %
<Cement mortar>	0.2 %	9.7 %
<Cement screed>	0.2 %	6.6 %
<Concrete filler>	0.6 %	7.1 %
<Concrete screed>	0.1 %	6.7 %
<Drywall>	0.1 %	28.8 %
<Gas concrete>	0.8 %	75.5 %
<Gypsum>	0.1 %	29.6 %
<Lime mortar>	0.1 %	12.2 %