New TM-188D Heat Stress Tenmars Wbgt Meter
Quick response capacitance sensor, accurate measurement for wet bulb globe temperature(WBGT), black globe temperature(TG), humidity(%RH), air temperature(TA), wet bulb(WET) and dew point(DEW). 
 
Max/Min and data hold. 
 
Low battery indication. 
 
LCD display with LED backlight. 
 
Viewing data records. 
 
Switch the temperature unit to ℃ or ℉. 
 
Brass black ball in 50mm diameter. 
 
WBGT alarm setting. 
 
Auto power off with disable function. 
 
Data logging capacity: 12000 records, USB PC serial interface (TM 188D). 
 
Sampling interval: Max 24 hours; Min 1 Second (TM 188D). 
 
TM-188. 
 
TM-188D (with datalogger). 
 
Specifications (23℃±5℃). 
 
 
Wet bulb globe temperature (WBGT) : 
Unit
Range
Resolution
Accuracy
@15~40℃
indoor
&
Outdoor without sunlight
℃
0~59.0
0.1
±1.0
℉
32.0~
138.0
0.1
±1.8
Outdoor 
With sunlight
℃
0~56.0
0.1
±1.5
℉
32.0~
132.0
0.1
±2.7
※indoor & outdoor without sunlight:
 WBGT = (0.7×WET)+(0.3×TG)
Outdoor with sunlight:
WBGT=(0.7×WET)+(0.2×TG)+(0.1×TA)

Air temperature (TA):
Unit
Range
Resolution
Accuracy
@15~40℃
℃
0~50.0
0.1
±0.8
℉
32.0~122.0
0.1
±1.5
 
Black globe temperature (TG):
Unit
Range
Resolution
Accuracy
@15~40℃
℃
0~80.0
0.1
±0.6
℉
32.0~176.0
0.1
±1.1
 
Relative Humidity (%RH):
Measurement Range
1%~99%
Accuracy
±3.0%RH(20~80%)
±5.0%RH(80%)
Resolution
0.1%
 
Dew point temperature (DEW):
Unit
Range
Resolution
℃
-35.3~48.9
0.1
℉
-31.5~120.1
0.1
The value is calculated from the RH and Air temperature.
 
Wet bulb temperature (WET):
Unit
Range
Resolution
℃
-21.6~50.0
0.1
℉
-6.9~122.0
0.1
The value is calculated from the RH and air temperature. 

- Dimension : 300 x 70 x 50mm (L x W x H) 
- Weight : 220g. (Without batteries).
- Power supply : 006P 9V,or AC100~240V DC 9V/ 0.5A(9mm).
- Battery life : 200 hours.
- Operating Temperature & Humidity :0°C to +50°C.
- Storage temperature & humidity : -10°C to +50°C .
- Data output :USB PC serial interface,12000 records. (TM-188D)
- LCD: 52mm(W)x36mm(L) monochrome LCD and backlight. 
- Standard accessories: 006P 9V battery x1, User’s manual x 1,  Carrying x1,
USB cable(TM-188D) x1, AC100~240V to DC9V/0.5A (9mm)x1 (TM-188D), 
 Install CD disk(TM-188D) x1
 
Tue, 25 Jun 2024 16:23:30 GMT 638549582105325283 CD141B8780F7142594ADD557621981AF