http://www.channeleco.com/en/Item/Show.asp?m=1&d=1225 
Product description: QT-PH350 is a sophisticated but durable pen-like pH meter with independent electrodes. It can be used for several years if it is operated correctly.  
  
Features 
	- Standard accessories include detachable pH test pen, pH electrode and pH 4, pH 7 standard solution
 
	- Nib type pH electrode is the ideal probe for measuring permeable object, such as soil, meat, cheese etc., the electrode is embedded in a solid glass pen
 
	- Detachable pH probe can be used for regular or remote measurements
 
	- Automatic calibration with pH 4, 7,10 standard solutions
 
	- Rotation display button
 
	- Data Retention
 
	- Auto power-off
 
	- Small and lightweight
 
	- Waterproof panel
 
 
Applications 
Agriculture, horticulture, food processing, teaching, industrial and quality management 
  
 Specifications 
	
		
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			 Data reader 
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			 Screen 
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			 20 mm x 28 mm LCD with rotation display function 
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			 Measurement range 
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			 0~14 
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			 Resolution 
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			 0.01pH 
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			 Accuracy 
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			 ±0.07(5~9) 
			±0.1 (4~4.9, 9.1~10) 
			±0.2 (1~3.9, 10.1~13) 
			(23±5℃, calibration values) 
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			 Input impedance 
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			 10~12 ohms 
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			 Temperature compensation 
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			 Not necessary 
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			 Sampling time 
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			 About 0.8 s 
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			 Data Retention 
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			 Freeze the current display data, convenient for reading 
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			 Calibration 
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			 Automatic calibration with pH 7, 4 or 10 standard solutions 
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			 pH electrode connector 
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			 BNC interface 
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			 Operating Temperature 
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			 0~50℃(32~122℉) 
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			 Operating humidity 
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			 <80%RH 
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			 Power 
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			 Four UM-4/AAA battery, 1.5V 
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			 Power consumption 
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			 About 4.8 mA 
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			 Size 
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			 pH meter: 180 x 40 x 32 mm(7.1 X 1.6 x 1.3 in) 
			Electrode: 12 mm diameter x 160 mm 
			Electrode cable length: about 1000 mm 
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			 Weight 
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			 220 g (0.48LB), electrode included 
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			 Standard accessories 
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			 Manual, portable carrying box, soil pH probe, pH 4.0, pH 7.0 buffer solution 
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			 Soil pH Probe 
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			 Measurement range 
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			 1~13 (Standard 0~14) 
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			 Operating Temperature 
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			 5~60℃(41~140℉) 
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			 Electrode structure 
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			 Combination 
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			 Reference pH electrode 
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			 Silver/silver chloride, bidirectional electrode 
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			 PH value at zero potential 
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			 7±1 
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			 Repeatability 
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			 0.05 
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			 Response time 
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			 ≥ 2 min 
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			 Material 
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			 Epoxy 
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			 Interface 
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			 BNC 
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			 Protection 
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			 Shield for probe 
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			 Weight 
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			 69 g (including power supply and socket) 
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			 Size 
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			 Probe: 160mm long; 12mm diameter 
			Cable: 1000 mm long 
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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.
   
 
 
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