Shen ChangHong 
Dear old and new customers:
The Mid Autumn Festival and National Day holiday of 2018 are coming soon. According to the national statutory holidays and the actual situation of our company, we hereby give the following notice on the holiday time of our company: from September 22 to September 24, 2018, we will take a three-day holiday, from September 25 to September 30, from October 1 to October 7, a total of seven days, and on October 8.
During the holidays, our company does not arrange personnel to deliver goods. Please arrange orders according to your own needs in time. Please understand the inconvenience caused to you! Shenchanghong thanks for your company all the way!
I wish you all a Happy Mid Autumn Festival and national day! Good health and happy family!
September 20, 2018
Shenzhen Changhong Technology Co., Ltd
Introduction to Shenzhen Changhong
Shenzhen Changhong Technology Co., Ltd. is a high-tech enterprise founded in 2002. For more than ten years, it has been committed to the R & D, production and sales of hundreds of water quality monitoring instrument products, including cod tester, ammonia nitrogen tester, total phosphorus tester, total nitrogen tester and various water quality heavy metals, inorganic compounds, etc. the product technology involves computer, single-chip software and hardware, optics, chemical analysis and other technical fields.
Shenzhen Changhong Technology Co., Ltd
Address: East floor, building A2, shunheda Industrial Park, liuxiandong Industrial Park, Xili Town, Nanshan District, Shenzhen
400 hotline: 400-103-6336
Tel: 0755-26450374, 86642510, 86130934, 26620515
After sales Tel.: 0755-86130934
Official website: www.szchkj.com
Gw-2000 multi parameter water quality tester
① Collecting electrode, cuvette and cuvette in one body ② automatic wavelength selection ③ power-off protection
According to the user's needs, the instrument can carry out the free combination of the following parameters:
1】 Heavy metals
2】 Inorganic salts (including residual chlorine, total chlorine, chlorine dioxide, turbidity, chroma, copper, hexavalent chromium, manganese, iron, zinc, aluminum, cyanide, phosphate, sulfate, nitrite, nitrate, ammonia nitrogen, hardness, etc.) etc.
The instrument is widely used for the determination of drinking water, surface water and surface water.
Two
Pwn-840 (a) portable water quality tester (COD, ammonia nitrogen, total phosphorus, total nitrogen)
① Hand held portable design ② with 4-hole digester ③ suitable for field and field use
1】 The digester is separated from the tester, which does not affect the measurement accuracy. Temperature PID automatic temperature control, timing.
2】 High performance ultra-low power 16 bit single chip microcomputer, the standby time of the instrument can be more than 6 months.
3】 Time saving operation.
4】 Cold light source, narrow-band interference optical system, good optical stability.
5】 Data power-off protection function.
6】 It can save 30 standard curves and 199 measured values (including the measured values, absorption values and transmittance of the year, month, day, hour, minute and second with time label)
7】 With USB port, it can be connected to a computer to read records or print out stored data.
8】 The main engine shell is made of molded ABS material, IP65 design, good waterproof and dustproof.
Three
Cnpn-401 cod, ammonia nitrogen, total phosphorus, total nitrogen tester
① Equipped with dis-16b (or optional dis-20b / 25B / 36B) digestion instrument;
② The display of the digester is a 3.5-inch color touch screen with a resolution of 320x240, displayed in Chinese and English;
③ With printing and USB data upload;
④ For waste water detection.
[product features]
1】 Using imported high brightness, long-life cold light source and high stability narrow-band interference optical system, the instrument has high stability and repeatability.
2】 The digester and the host are independent instruments, which do not affect the stability of the optical system.
3】 The temperature of digester is controlled and timed automatically by PID with high precision.
4】 The digestion temperature and time can be set freely for other purposes.
5】 The same digestion colorimetric tube is used for digestion and colorimetry, which has high strength and hardness and can be used repeatedly.
6】 20 standard curves and 400 measured values of COD, ammonia nitrogen, total phosphorus and total nitrogen can be saved respectively, without loss in case of power failure.
7】 Printing function: the test record can be printed immediately or the query record can be printed.
8】 With USB interface data upload function, the data record stored in the instrument can be uploaded to the computer for saving or editing and printing.
9】 LCD large screen LCD display, long life and low failure rate, operation Chinese menu display.
