8721 Type Temperature and Humidity MeterDetailed product description：

8721 type temperature and humidity meter

Basic performance and application
Set up audio alarms for both online and offline settings
Quick response, high accuracy
Data retention function
Maximum and minimum read value data record locking function
Automatic shutdown, low voltage indication
RS232 signal output (optional RS232 software and connection)
Can be powered by an external power source and automatically shut down.  
Maximum and minimum read value record data lock

Technical parameters of 8721 temperature and humidity meter

measurement range	Humidity: 0% to 100% R.H Temperature: -20 ℃~+50 ℃
resolution	0.1%RH， 0.1℃/0.1℉
accuracy	Humidity: ± 2%, Temperature: ± 0.5 ℃
alarm function	Set high and low warning, sound alarm
reaction time	80sec
display	Dual display temperature and humidity, large screen LCD display
Operation and storage temperature and humidity	0℃ to 50℃＜80%R.H. -10℃ to 60℃＜70% R.H.
Size, weight	181mm×71mm×38mm，230g
power supply	Powered by a 9V battery or an external 9V power supply
Attachment	Carrying case, battery, user manual.
Optional parts	RS232 software and connection, HR35, HR75 humidity calibration salt tank

8721 type temperature and humidity meter