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outlet as many times as necessary. After measuring more than one outlet volume, you can press Mx/Mn▲ key to review the sum of all
outlets. Press HOLD▼ key to review the last outlet capacity.
If you would like to measure more than 1 inlet, please wait for 10 minutes and allow the humidity sensor to stabilize to the room
humidity.

LOW-BATTERY

There are two levels of low battery indication:
Level 1: Battery indicator will flash when level 1 is met. In this situation, the meter will continue to work normally however the user
should be prepared to change the batteries.
Level 2: Battery indicator will permanently display on the LCD when level 2 is met. Change the batteries immediately.
1. Open the battery cover on the rear side.
2. Remove the expired batteries.
3. Insert (4) AAA batteries making sure the batteries are inserted with correct polarity, replace the cover.
AC TO DC ADAPTOR
The compatible AC to DC adaptor is 9V at least 200mA.
AVAILABLE SIZE RANGE
Please refer to below input size range. Please be reminded that in metric L/W/D, the value after decimal is not selectable.
L/W/D
cm
000.0∼999.0
inch
000.0∼999.9
TROUBLESHOOTING
1.) Power on but no display
a) Make sure the
key is pressed more than 3 seconds.
b) Check that the batteries are in place and in good contact, with correct polarity.
c) Replace with a new battery and try again.
d) Disconnect the battery for one minute and reconnect.
2.) Display disappears
a) Check whether the low battery indicator was displayed before the LCD disappears, if yes, replace battery.
b) Turn on the meter by pressing
3.) E1: The probe is disconnected or damaged.
4.) E2: The value is underflow.
5.) E3: The value is overflow.
6.) E4: The original data that is relative to this value error.
7.) E5: Out of meter display range.
8.) E6: The value is not calculated completely.
9.) E11: Humidity Calibration error.
SPECIFICATION
TEMPERATURE: -20 to 60˚C (-4 to 140˚F) / Accuracy: ±0.6˚C (±1˚F) / Resolution: 0.1˚C (0.1˚F)
RELATIVE HUMIDITY: 0 to 100% RH / Accuracy: ±3% at 10 to 90% RH (cal. temp.) ±5% at other range / Resolution : 0.1%
DEW POINT: -68 to 70˚C (-90 to 158˚F ) / Resolution: 0.1˚C
WET BULB TEMPERATURE: -22 to 70˚C (-7.6 to 158˚F) / Resolution: 0.1˚C
AIR VELOCITY: 0.3 to 35 m/s (1 to 114 ft/s) / Accuracy: ±5% / Resolution: 0.1
AIR VOLUME: 0 to 99999 m
ADDITIONAL FEATURE
BTU Capacity: 0 to 99999 BTU/H (KW) / Resolution: 0.1 (0 - 9999.9) or 1 (10000 - 99999)
Dimension: Vane 170 x 77 x 40 mm; Meter 175 x 70 x 33 mm
Power: (4) 1.5V AAA battery or 9V >200mA adaptor.
WARRANTY
This product warrants against defects in material and workmanship for a period of one year. This warranty does not cover failure due to
abuse, improper usage, or progressive wear and tear.
Warranty becomes valid to the original user, effective on the purchase date. A copy of an invoice must be sent to 1 Aspen Drive,
Randolph, NJ 07869 to validate the warranty. For further service please contact (973) 252-9119.
Area
00000∼99999
00000∼99999
+ Mx/Mn▲ key to disable auto power off function for long time use.
3
/s (0 to 99999 cfm) / Accuracy ±5% / Resolution: 0.1 (0 - 9999.9) or 1 (10000 - 99999)
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