http://www.channeleco.com/en/Item/Show.asp?m=1&d=1224
Product description : QT-PH010 pH / temperature / humidity meter is a three-in-one instrument with unique design. Its foldable structure is convenient for users to measure liquid sample from different angles. It is small, lightweight and portable, with a replaceable electrode. Its ABS shell is easy to clean and maintain. The meter can automatically calibrate the measurement error due to temperature change.

Technical Parameters
pH
|
Measurement Range
|
0.00~14.00
|
Resolution
|
0.01
|
Accuracy
|
±0.1
|
Temperature
|
Measurement Range
|
-5~50℃
|
Resolution
|
0.1℃
|
Accuracy
|
±1℃
|
Relative humidity
|
Measurement Range
|
10%~99%
|
Resolution
|
1%
|
Accuracy
|
±5%
|
Automatic temperature compensation
|
0℃~50℃
|
Battery
|
4×1.5V(AG13 Button batteries)
|
Operating Temperature
|
0℃~50℃
|
Calibration methods
|
Manual single-point calibration
|
Size
|
156mm×55mm×23mm
|
weight
|
95g
|
|
|
|
|
Origin: CHINA
Channel Technology Group Limited
Tel:+86-10-62111044
Fax:+86-10-62114847
Web:http://www.channeleco.com/en/
Email:repair@qudao.com.cn
bio-equip.cn
For the purpose of introduction and promotion of global advanced instrumentation and technology in the fields of terrestrial ecology, aquatic ecology and life science, Channel Technology Group Limited was established in 2001.