37 Interface
Internal power source
Internal Li-Ion-Polymer battery, rechargeable with USB 5V DC / max. 500mA
Operating time, depending in channel, up to 60 hours.
Nominal Voltage 3,7 V
Max. charge voltage 4,2 V (internally generated an monitored)
Capacity 850 mAh or 3,1 Wh
Battery charge time approx. 3 hours
Device use time estimated 40 hrs (displaying conductivity) up to 120 hrs (stopwatch)
USB not connected
External power supply
Input voltage 100-240 V AC/ 50-60Hz
Output voltage/current 5 V DC, 500 mA min.
Plug Mini USB A-Plug
Degree of protection
Meter IPX1
Conductivity probe IP66 , max. 0,5 m immersion depth, max. 5 min
Size and weight
Size 165 x 82 x 33 mm
Weight 400 gr. without battery charger, including conductivity/temperature probe
Operating conditions
Ambient operating temperature +10°C (50°F) … +37 °C (100°F), typically +23°C (73°F)
Storage temperature 0°C (32°F) … +55 °C (131°F)
No direct sunlight
Relative humidity max. average per year < 75%
95% for max. 15 days/year
These technical data may be changed without notice!