SUDDEN - 544 Annonces

Jeudi 08 août 2019

Flash columns adopt high-capacity silica gel for precise filling, which has very excellent separation and purification performance. The specific surface area of high-capacity spherical silica gel is 40% higher than that of ordinary spherical silica gel, and the sample loading is twice...

Jeudi 01 août 2019

It is important for the experimenters to use and maintain chromatographic columns correctly. They should focus on many some things so as to protect the columns in the using process. Here we talk about several attentions. Avoid changing pressure and temperature dramatically and any...

Jeudi 11 juillet 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Jeudi 11 juillet 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Lundi 08 juillet 2019

The feature of JH-D03 BTE FM Balanced Armature Loudspeaker Open Fit Hearing Aid Hearing Amplifier 1. Modeling exquisite, the button is obvious, easy to operate; 2. Open fit hearing aid can change the ear tube as you need, comfortable wear; 3. Corresponding uncomfortable threshold...

Jeudi 04 juillet 2019

(1) When loading and unloading or replacing the HPLC columns, the action should be light and the joint should be tightened properly. Strong mechanical vibration must be prevented to avoid voids in the bed. (2) If the instrument is used for routine analysis, the sample type is limited...

Mardi 02 juillet 2019

The key to regenerating contaminated HPLC columns is to know the nature of the contaminants and to find the right solvent to remove. If contamination is caused by the accumulation of strongly retained materials during repeated injections, simple steps to remove these contaminants...

Lundi 03 juin 2019

Features of JH-908 ITE Mini Digital Hearing Aid Hearing Amplifier 1. Hot-selling worldwide for this item and well known; 2. Merely the smallest CIC model in this price level, comfortable in the ear; 3. Suitable for patients of all ages 4. Good and steady sound performance, balanced...

Dimanche 17 février 2019

The best magnetic drill machine is a kind of drilling machine with the electromagnetic base. It can use twist drill bits, annular cutters and do tap threads with matched cutting bits. Its combination of a stable magnetic base and low RPMs help resist or reduce torque forces created...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-116 Personal Sound Amplifier Behind The Ear Hearing Aid - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB/44 Battery size LR754 Total Harmonic ≤5% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA 4.5 Current...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-907 ITE Mini Hearing Aid Hearing Amplifier - Max Sound Output 120 ± 5dB Voltage 1.5V Sound Gain ≥35dB/28 Battery size A10 Total Harmonic Wave Distortion ≤5% Battery capacity/Mah 100 Operation Current ≤6mA Operation current/mA 3.5 Frequency...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-900a ITE Hearing Aid Hearing Amplifier - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB/49.4 Battery size A312 Total Harmonic Wave Distortion ≤5% Battery capacity/Mah 160 Operation Current ≤4mA Operation current/mA 1.6 Frequency...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-906 ITE Hearing Aid Hearing Amplifier - Max Sound Output 125 ± 5dB Voltage 1.5V Sound Gain ≥35dB Battery size AG3 Total Harmonic Wave Distortion ≤7% Battery capacity/Mah 43 Operation Current ≤6mA Operation current/mA 1.7 Frequency Range 200-4000Hz...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-119 BTE Bluetooth Earphone Appearance Ear Zoom Hearing Aid Hearing Amplifier - Max Sound Output 135 ± 5dB Voltage 1.5V Sound Gain ≥35dB Battery size AG13 Total Harmonic Wave Distortion ≤5% Battery capacity/Mah 160 Operation Current ≤4mA Operation...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-D04 BTE FM Balanced Armature Loudspeaker Hearing Aid Hearing Amplifier - Max Sound Output 125±3dB Voltage 1.5V Sound Gain 35±5dB Battery Type LR754 Total Harmonic ≤10% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-D03 BTE FM Balanced Armature Loudspeaker Open Fit Hearing Aid Hearing Amplifier - Max Sound Output 130±3dB Sound Gain 40±5dB Total Harmonic Wave Distortion 500HZ<3%<br /> 800HZ<5%<br /> 1600HZ<1%</td> Operation Current/mA...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-180 BTE BTE Ear Hook Hearing Aid Hearing Amplifier - Max Sound Output 125 ± 5dB Voltage 1.5V Sound Gain ≥40dB Battery size LR754 Total Harmonic ≤6% Battery capacity/Mah 68 Wave Distortion Operation Current ≤4mA Operation current/mA 2.9 Frequency...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-117 Analog BTE Hearing Aid Hearing Amplifier - Max Sound Output 129dB±3 Voltage 1.5V Sound Gain ≥45dB±5 Battery size LR44H Total Harmonic ≤10% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA 4.5 Current Frequency...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-115 Analog BTE Hearing Aid Hearing Amplifier - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB/44 Battery size LR754 Total Harmonic ≤5% Battery capacity/Mah 68 Wave Distortion Operation ≤4mA Operation current/mA 4.5 Current Frequency...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-113 Analog BTE Hearing Aid Hearing Amplifier - Max Sound Output 123 ± 5dB Voltage 1.5V Sound Gain ≥45dB/45 Battery Type AG13 Total Harmonic ≤5%/2.3 Battery capacity/Mah 160 Wave Distortion Operation ≤4mA Operation current/mA 5 Current/mA...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-908 ITE Mini Digital Hearing Aid Hearing Amplifier - Color Beige/optional colors Frequency range 800-5000Hz Total harmonic wave distortion 500Hz≤0%, 70dB 800Hz≤1%, 70dB 1600Hz≤0.2%, 65dB OSPL90 Max at 1900Hz, 124.4dB HFA/AVG/114.4dB FOG50 Max at 1500Hz/51...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-D10 Digital Trimmer 3 Modes Ear Hook BTE Hearing Aid Hearing Amplifier - Max Sound Output 128±3dB Voltage D.C.1.4V Sound Gain 57±5dB Battery Type LR44H/A675 Total Harmonic Wave Distortion 500Hz ＜6% 800Hz ＜4% 1600Hz ＜1% Battery capacity/Mah 68...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-D19 Digital IP65 Waterproof BTE Open Fit Hearing Aid / Hearing Amplifier - Max Sound Output 122±3dB Waterproof & dustproof IP65 Sound Gain 50±5dB Function WDRC and AFC Total Harmonic ≤3% Voltage 1.4V Wave Distortion Battery Type A312 Frequency...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-D16 Digital 4 Modes BTE Open Fit Hearing Aid Hearing Amplifier - Max Sound Output 122 ± 3dB Battery Type A13 Sound Gain ≥50dB Operating time: 300hs Total Harmonic Wave Distortion ≤2% Certification FDA Power supply D.C.1.5V, #13 battery Machine...

Jeudi 14 juin 2018

The Hopechart tachograph also used GPS and accelerometers to track the movement of the vehicle, then send relevant data to the cloud for analysis. However, the Hopechart tachograph not only tracks the position of the positioning vehicle, it also records everything it monitors inside...

Jeudi 22 février 2018

Fuel Consumption Management - Fuel Theft, A Challenge for Truck Fleet Owners Fuel cost accounts for a big proportion of a truck fleet's operation costs. The most common way of fuel theft is to drain the fuel tank of a truck. Some drivers even complement the deficiencies in tanks...

Lundi 22 janvier 2018

Quantité : 4000 - Prix : 0,00 €

The DEFI 5T Trainer is a training tool for preparing emergency responders to use the AED defibrillator to treat a victim of sudden cardiac arrest. The Trainer provides realistic simulation of the defibrillator without actually charging or discharging electrical energy. Voice prompts...

Lundi 22 janvier 2018

Quantité : 4000 - Prix : 0,00 €

- Defi Xpress is a defibrillator device - with voice alarm which can meet your clinical needs from Basic Life Support (BLS) to Advanced Cardiac Life Support (ACLS). 5 Languages available: English.Russian.Spanesh.Chinese.Turkish Defibrillators benefit patients who experience a sudden...

Mardi 19 décembre 2017

- L–1,4-BDO - - Introduction - CAS: 110-63-4Molecular formula: C4H10O2Molecular weight: 90.12 - Product Properties - The flammable liquid of colorless and oil-state in nature, it can be dissolved and mixed in water, methanol, ethanol, acetone and slightly soluble in ethyl ether...

Samedi 16 décembre 2017

Quantité : 1000 - Prix : 30-100

Introduction USR-W600 is a cost-effictive RS232/RS485 to WiFi converter. This product provides stable wireless data transmission in the industrial field where needs wireless connection. Features - Working voltage: DC 5~36V - RS232/RS485 to WiFi - TCP/UDP in WiFi Product Detail...