Pro's Kit NT-311 Instructions

Digital Temperature Humidity Meter Instruction
SP ECIFICATION:

Temperature Range:
Indoor：-10℃～+50℃ ± 1℃ (+14℉ ～ +122℉ ±1.8℉)
Outdoor: -50℃～+70℃ ± 1℃ (-58℉ ～ +158℉±1.8℉)
(for NT-312 only, applicable for outdoor temperature sensor.）
Temperature resolution: 0.1℃

Humidity Range: indoor 20% ~ 90% RH
20%RH, display 10%RH directly.）
Humidity resolution: 1%

Power-supply: 1.5V (AAA size) x 1
FU NCTIONS:

Indoor/ outdoor temperature display, indoor humidity display

Temperature unit ℃/℉ changeable

Memory of MAX/MIN values of temperature & humidity

2 modes of time display: 12h / 24h

Clock & date display function, automatic exchanging in 5 seconds
between clock & date

Hourly alarm function

Everyday alarm function

Install an outdoor temperature sensor, automatically displays indoor &
outdoor temperature alternately in 5 seconds (only for NT-312)
OPERATIONS
1. Open battery compartment cover, take out the polarity insulator, put on
the cover, then the meter starts to work.
2. BUTTON function:
[MODE] exchange display mode of CLOCK and ALARM, set current
time, alarm, 12h/24h display and date.
[ADJ] adjust the value of what is under setting.
[℃/℉] change temperature unit between Celsius (℃) and Fahrenheit
(℉) .
[RESET] delete all values set and in memory, all values return to the
original.
[MEMORY] press to display memorized MAX and MIN values of
temperature and humidity.
3. In status of original, press and hold [MODE] for 2 seconds, the minute
value flashes, press [ADJ] to adjust value of minute, press [MODE]
continuously, can adjust value of hour, 12h/24h, date(D), month(M)
respectively.
4. Under mode of clock, ':' between hour value and minute value flashes
every second, press [MODE] one time, change CLOCK mode to
ALARM mode, then ':' between hour value and minute value does not
flash, now, press [ADJ] button, can switch ON/OFF of ALARM (
function and Hourly alarm (
seconds to set up ALARM time.
5. Under mode of ALARM, the meter will return to CLOCK mode if there is
no any operation in 1 minute. Press [MODE] one time, change the
display to date and the meter return to CLOCK mode automatically in 3
seconds.
6. Press [MEMORY] button to display the MAX/ MIN values of
temperature and humidity. Press [MEMORY] for 2 seconds, then
memorized MAX/MIN values are cleared, the meter starts to memorize
new MAX/MIN values.
AT TENTIONS:

Press [RESET] button for one time when the meter is first used or the
battery is replaced.

Press [RESET] button for one time if any abnormal display appears.

Put the replaced battery at places appointed by government.

We do not notice if any technical change is applied in this meter.
NT-311/ NT-312
) function. Press and hold [MODE] for 2
±5%（When the humidity <
)