Martindale DH85 Hygro-moisture Meter

Includes: Protective cover for safe storage, 2 x 1.5V AAA batteries, Detachable carry strap and Martindale DH85 Instructions.

Reference MARDH85

Brand Martindale Electric

The Martindale DH85 is a hygro-moisture meter giving accurate measurementsof moisture levels in materials and also measures air temperature and humidity of the environment. Seven different ranges (hard wood, soft wood, plaster, anhydrite screed, cement mortar, lime mortar and brick) can be selected.

The DH85 has the facility to display the maximum reading, the minimum reading, the difference between maximum and minimum readings and the average of the recorded readings (Humidity and temperature measurements only).

The backlit LCD screen also displays the temperature and humidity with a choice of units of measurement. As well as the usual hold, auto power off and backlit screen features, the DH85 also has a useful self-check function to ensure that the unit is working correctly at all times.

FEATURES

Suitable for wood, plaster & mortar.
Relative humidity 0% to 100%.
Display Hold & Min / Max readings.
Backlit display.
Auto power off.

Martindale DH85 Specifications

Range	Resolution	Accuracy
Hard Wood - 8.8 to 54.8%	0.1%	±1% (conductivity measurement).
Soft Wood - 7.0 to 47.9%
Plaster - 0.9 to 22.1%
Anhydrite Screed - 0.0 to 11.0%
Cement Mortar - 0.7 to 8.6%
Lime Mortar - 0.6 to 9.9%
Bricks - 0.1 to 16.5%
Relative Humidity
0 to 100% RH	0.1% RH	± 2.5% (10% to 90% R.H.) ± 5% (0% to 10%, 90% to 100% R.H.).
Sensor Information	Sensor: Digital capacitive humidity sensor. Sensor response time for 90% of total range: 60 seconds typical. Sensor hysteresis (excursion of 10% to 90% to 10% R.H.): ±1% R.H. typical.
Temperature
-20 to 60°C	0.1°C	± 0.5°C (0°C to 45°C) ± 1°C (-20°C to 0°C, 45°C to 60°C).
-4 to 140°F	0.1°F	± 1°F (32°F to 113°F) ± 2°F (-4°F to 32°F, 113°F to 140°F).
Sensor Type	Thermistor temperature sensor
Environmental Specifications
Operating Environment	-20 to 60°C.
Storage Environment	-20 to 60°C (<80% RH with batteries removed).
EMC	Conforms to BS EN61326-1.
General Specifications
Display	Liquid crystal (LCD).
Measurement Rate	Once per second.
Power	2 x 1.5V AAA alkaline batteries (IEC LR03, NEDA 24A).
Continuous Operating Time	200 hours typical with alkaline battery.
Low Battery Indication	Symbol displayed when battery voltage drops below operating level.
Auto Power Off	Approx 10 minutes of inactivity.
Dimensions (L x W x D)	133 x 51 x 25 mm.
Weight	118g approx including batteries.
Martindale DH85 warranty	2 years.
All specified accuracies are at 23°C ± 5°C, <70% R.H. for 1 year. Temperature coefficient: 0.1 x (specified accuracy) per °C, (-20°C to 18°C, 28°C to 60°C).