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Wet Bulb Globe Temperature Data Logger, WBGT Index Meter

Model No.
87786 AZ
Made in
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Bulb Globe Temperature Data Logger


  • Usage : Household,Indoor,Industrial,Outdoor

Key Features

AZ's latest WBGT index data logger brings you the completely new experience to measure and record wet bulb globe temperature without any software. We offer a wide range of products, such as temperature data logger, CO2 meter and anemometer, etc. E-mail us for more info.

*Simultaneously display WBGT, temperature & humidity
*Check Indoor/Outdoor WBGT, TA/TG & Humidity
*Plug & Play. Software and USB driver are not required
*Generate CSV report without additional PC software
*Completely user re-programmable. 8 languages, sampling rate, start delay time and ID setting
*One button switch to check Air/ Globe temperature & In/Out WBGT
*Designed with capacitance type humidity sensor to get accurate and quick reading
*Backlight indicator function (green, yellow, red, flashing red) as WBGT condition reminder
*Easy-to-read big LCD display with 6 dust proof rubber keys
*Clear sheath to protect humidity sensor during storage
*Filter to protect humidity sensor from dust scratch during operation
*75 mm black metal ball to measure globe temperature
*Temperature unit ℃/℉ selectable
*Hold function to freeze reading and Max/Min function included
*Battery low indicator & Sleep mode can be disabled
*Tripod receptacle design for long time use
*Audible beeper for danger zone warning
*Humidity self-calibration via salt bottles kit

The Wet Bulb Globe Temperature (WBGT) is a composite temperature used to estimate the effect of temperature, humidity, wind speed and solar radiation on humans.

The Handy 87786 AZ WBGT Data Logger could measure air temperature, globe temperature, and humidity to give heat stress index for using in control of physical activity in hot environment to limit the danger of heat-related injuries.

The 87786 AZ Portable WBGT Data Logger can show the different backlight color to distinguish the different temperature value/level. There are 4 kinds of WBGT indicator as follows,
1. Green back light: 26.7~29.4℃
2. Yellow back light: 29.4~31℃
3. Red back light: 31~32℃
4. Red Flashing back light: above 32.2℃
So the 87786 AZ Portable WBGT Data Logger could be the best tool for monitoring the outdoor activities and Prevent people to get Heat Stroke.

The 87786 AZ Portable WBGT Recorder could be operated by industrial hygienists, athletes and the military to determine appropriate exposure levels to high temperatures. Military agencies, OSHA and many nations use the WBGT as a guide to manage workload in direct sunlight.

User could record and download the real time value of 87786 AZ Portable WBGT Recorder via mini USB cable to PC for data analysis. There is no need to install USB driver or software before operating logging function. It could be operated as the USB memory flash drive easily on PC. And there is a tripod hole on the bottle of 87786 AZ Portable WBGT Recorder. User could use the tripod to hold the device vertically for long term use.
It could be applied for measuring the WBGT value in construction, iron and steel foundries, bricks-firing plants, glass facilities, boiler rooms, mining sites, army training, marathon, beach activities and so on.

87786 AZ Portable WBGT Recorder was being designed and manufactured by AZ Instrument, a well experienced manufacturer for Environmental Measuring.

Temperature Range0~50℃
Temperature Resolution0.1℃, 0.1℉
Temperature Accuracy±0.6℃
Humidity Range0.1~99.9% RH
Humidity Resolution0.1% RH
Humidity Accuracy±3%RH (at 25℃, 10~90%RH);
others ±5%RH
Global Temperature (Inside Black Ball)0~80℃
Global Temp. Accuracy (Indoor)±1℃at 15~40℃, others ±1.5℃
Global Temp. Accuracy (Outdoor)±1.5℃at 15~40℃, others ±2℃
WBGT Temperature Range0~50℃
WBGT Alarm Range20~50℃
Sampling Rate1, 5, 10, 30, 60, 90, 120 mins
Start Delay Time0, 5, 30, 45, 60, 90, 120 mins
Memory Points12000 readings, each contains
Black Ball SizeDiameter 75 mm, Height 75 mm
Stabilization Time15~25 minutes typical
RH% Self CalibrationWith 33% & 75% Salt Bottle
Operating Temperature0~50℃
Operating RH%Humidity <80%
Storage Temperature-20~50℃
Storage RH%Humidity <90%
LCD Size50(L) * 32(W) mm
Meter Size302(L) * 75(W) * 36.7(H) mm
Battery Life~200 hours
Standard PackageMeter, Batteries, Manual,
Mini USB cable, Paper Box

With Certification
Operation Video

Product Certification


    WBGT Index Meter

Last Update : 2019-11-07
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