Temperature Humidity   meter  w/Dual Input

Prdoduct ID: DTM-321  

Datalogger  Humidity/Temperature  Meter w/Dual Input
Model: DTM-322

  • Temp:-20°C ~ 60°C (-4°F ~ 140°F );
K-type: -200°C ~ 1,370°C (-328°F ~ 2,498°F);
Humidity: 0 ~ 100% RH
  • 4 Digit, Triple display.
  • K-type Termocouple.
  • Reading hold °C or °F annunciators.
  • MAX, MIN. function.
  • Auto power off.
  • ΔREL function.  (DTM-321)
  • Automatic low battery indication.
  • RS-232 computer interface.
  • RS-232 cable or USB cable and software for Windows

Specifications model  DTM-321
Measurement Range   
Humidity 0% ~ 100% RH
Temperature T1: -20°C ~ 60°C (-4°F ~ 140°F )
(K-Type) T2: -200°C ~ 1,370°C (-328°F ~ 2,498°F);
Resolution 0.1% RH  0.1°C  (0.1 °F)
Humidity +-2.5% RH (@ 25 °C  / (77°F)    , 30 ~ 95% RH)
Temperature  (+-0.7 °C  , 1.4  °F  )
(K-Type)    :+-0.3% rdg + 1  °C    +-0.3% rdg + 2 °F
Sensor Type Humidity: Precision capacitance sensor
Temperature: T1: Semiconductor sensor
T2: K-type Thermocouple
Response Type Humidity: 75 s (in slow moving air)

Temperature T1: 40 sec in slowing moving air
Sample Rate 1 time per second
Input Protection:
60V DC or 24V rms AC Maximum

Record (Datalogging) 16,300 Points (Model DTM-322)
Datalogging Interval 00m: 01s to 59m: 59s (Model DTM-322)
Operating Temp. & Humidity  
0 °C   ~ 50 °C  (32  ~ 122°F ) & 0 ~ 90% RH

Storage Temp. & Humidity
0 ~ 60 °C (14 ~ 140°F  )& 0~80% RH Non-condensing
Power Supply 9V NEDA 1604 Battery
(Optional adapter ADP-01 110V, ADP-02 220V)
Battery Life Approximately 100 hrs (Alkaline)

Meter:10.8"x2.5"x1.2" (186x64x30mm)
Probe:7.5"x0.6" (190x15mm)
Weight:11.2 oz(320g)
DTM- 321  : 1 x TPK-01,probe, 9V battery,
Deluxe carrying case,  owners manual.
DTM-322 :   1 x TPK-01,probe, 9V battery,
Deluxe carrying case,  owners manual.
RS-232 Cable and Software for Windows

Ordering Information:
Model : DTM-321
Humidity/Temperature Meter w/Dual Input

Model : DTM-322
Datalogging Humidity/Temperature Meter w/Dual Input

1) Whether the price is inclusive of RS 232 CABLE and software for window.
DTM-321 price desn't not include optional accessory SE-310 software and cable.
2) Detail of software required.
Windows 98, NT, or upgraded.
3) Our customer ask for Accuracy of 2% and your have quoted for 2.5%. Please confirm whether you  can provide suitable model.
No.    Accuracy    is Humidity +-2.5% RH (@ 25 °C  / (77°F)    , 30 ~ 95% RH)

4) Display of Air temperature relative humidity time and date simultaneously required
No,  LCD display cannot have this function but you can see them from software.

5) Please confirm details of display provide by you.
LCD Display.  Please click image for large photo.

6) Temperature required .ºC & .ºF, simultaneously or alternatively LCD DISPLAY size
It cannot  be displayed  simultaneously but you can choose one of it.

7) Memory back-up last hundred or more reading with date and time are required with battery back up.
Yes, there is memory back-up for data storage for DTM-322 dta logger.  Not for PC based DTM-321

8) should operate on Supply Voltage: 230 VAC, ±5V,.50Hz, 1 Phase, AC supply.
You can purchase AC 230 V to DC 9V adopter at your country or from us.
(Optional adapter ADP-01 110V, ADP-02 220V)

9) Customer asks in DTM-321 manual, measurement range is 0%~100% but operating environment is only 0 to 90% non-condensing –> so
whether these two information conflicts? 

The sensor measurement range can work for 0~ 100% RH
but the operating environment  0 ~ 90% RH(Non Condensing) is for the meter itself.
There is no conflicts with each other.

Besides, 100% RH is close to water and this will cause meter damaged for
all electronics devices. Therefore, it is recommended to keep the sensor and meter  dry to extend its reliability and usage life.

Order Information:

Minimum order: Negotiable.

TEL: 886-2-27375866
FAX: 886-2-27373343
E-mail:  sales@tecpel.com
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