PRECAUTIONS - 525 Annonces

Mardi 18 juin 2019

The main components of Wuxi Top Asia with German import parts, excellent performance, fast temperature rise, good reliability, is ideal for the equipment of the environmental testing laboratory. At present, the company's products have been sold well in Britain, Germany and France...

Samedi 15 juin 2019

Prix : USD44,000 to USD17,0

Sany 46 meters concrete pump, Isuzu chassis, RZ type, classical 5 booms, high working stability. Manufacture Date is April of the year 2011 and pumping Volume is 124400cmb and Mileage is 35100km. Comprehensive maintenance, direct to the construction site. Overview of equipment: Five-section...

Mercredi 12 juin 2019

Hawach introduces pipettes from the pipetting speed of the pipette and precautions during storage. First, the rate of liquid absorption. It is often seen in the laboratory that in order to “improve efficiency”, the user quickly releases the thumb during aspiration, which causes the...

Vendredi 07 juin 2019

Pipettes are common and necessary laboratory equipment in the laboratory, and the experimenter must be very cautious about their daily use. However, many people will ignore the related maintenance and maintenance of the pipette after use. Precautions for maintenance: 1. Regularly...

Mercredi 05 juin 2019

The conventional membrane filter device comprises vacuum manifolds filtration system, joint flask, and the vacuum source. Conspicuously, the essential part is the filtration system, which consists of three glass filter holders with respective values and two handles placed on both sides...

Lundi 03 juin 2019

Features of JH-351R BTE RIC FM Rechargeable Hearing Aid Hearing Amplifier 1. 2 hours continuous use with a full charge 2. Super mini in the ear, invisible in the ear. 3. Wide frequency range, high quality sound. 4. Open fit hearing aid, no blockage effect, improving wear comfort...

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...

Lundi 06 mai 2019

CLW Group is one of the top five hundred private enterprises in China, and we specialize in different special trucks like lpg skid station. With movable function, LPG skid station consists of different valves, pumps, storage tank, etc single part and steel base. Less cost, operating simply...

Samedi 01 décembre 2018

Quantité : 100 - Prix : Contact me

As the development of LED technology continues to grow and diversify, the need for consistent and standardized testing procedures for LED has become more prevalent than ever. SHNEZHEN Southern LCS Compliance Testing Laboratory Ltd. is an NIST NVLAP Accredited testing for LM-79 (NVLAP Lab Code...)

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-361 Rechargeable Portable BTE Hearing Aid Hearing Amplifier - Frequency Range: 200-6000Hz Total Harmonic Wave Distortion: 500Hz <= 0% 70dB</td> 800Hz <= 1% 70dB</td> 1600Hz <= 0.8% 65dB</td> Reference Test Gain: Target 43...

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-233 Body Worn Pocket Ear Sound Amplifier Hearing Aid - Max Sound Output 131 ± 5dB Voltage 1.5V Sound Gain ≥55dB/58.9 Battery size AA Total Harmonic ≤5% Battery capacity/Mah 2400 Wave Distortion Operation Current ≤4mA Operation current/mA 6...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-238 Pocket Body Worn Hearing Aid Hearing Amplifier - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥50dB/51.5 Battery size AA Total Harmonic ≤5% Battery capacity/Mah 2400 Wave Distortion Operation ≤4mA Operation current/mA 6.9 Current...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-909 Rechargeable ITE Hearing Aid Hearing Amplifier - Highest sound pressure level for input SSPL 90dB 126 ± 3dB Equivalent input noise level: ≤32dB Max. Output sound level gain: 35±5dB Reference Test Gain: 30±5dB Average Saturation Output(HF-Average SSPL 90)...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-905 Rechargeable ITE Hearing Aid Hearing Amplifier - Max Sound Output 125 ± 5dB Voltage 1.2V Sound Gain ≥35dB Battery size Total Harmonic ≤5% Battery capacity/Mah 40 Wave Distortion Operation ≤3mA Operation current/mA 1.2 Current Frequency...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-238 Pocket Body Worn Hearing Aid Hearing Amplifier - Product name Rechargeable ITE hearing aids sound amplifier Title of commodity/item number Rechargeable hearing aid/JH335 Color Beige/optional colors Frequency range 200Hz-7000Hz Total harmonic wave...

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-339 USB Rechargeable BTE Hearing Aid Hearing Amplifier - Max Sound Output 128 ± 3dB Noise EIN <26dB</td> Sound Gain 95±3dB Battery size NI-MH rechargeable battery Total Harmonic Wave Distortion 500Hz <= 3%</td> Working current 3...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-338 BTE USB Rechargeable Hearing Aid Hearing Amplifier - Max Sound Output 128 ± 3dB Noise EIN <26dB</td> Sound Gain 95±3dB Battery size NI-MH rechargeable battery Total Harmonic Wave Distortion 500Hz <= 3%</td> Working current 3...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-337 BTE Rechargeable Hearing Aid Hearing Amplifier - Max Sound Output 125 ± 5dB Voltage 1.2V Sound Gain ≥35dB Battery size NI-MH Rechargeable battery Total Harmonic Wave Distortion ≤10% Battery capacity/Mah 40 Operation ≤4mA Operation current/mA 1...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-351R BTE RIC FM Rechargeable Hearing Aid Hearing Amplifier - Max Sound Output 125±3dB Noise EIN ≤20dB Sound Gain 40±5dB Battery size 3.7V 30mAh Built-in lithium batter Total Harmonic Wave Distortion 500Hz <= 3.1%</td> Working current ≤2...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-351O BTE FM Open Fit Rechargeable Hearing Aid Hearing Amplifier - Max Sound Output 125±3dB Noise EIN ≤32dB Sound Gain 36±5dB Battery size 3.7V 30mAh Built-in lithium battery Total Harmonic Wave Distortion 500Hz <= 3.1%</span> Working current...

Mercredi 22 août 2018

Quantité : 80000Pcs - Prix : 3-50USD

- Specification of JH-351 BTE FM Rechargeable Hearing Aid Hearing Amplifier - Max Sound Output 130 ± 5dB Voltage 1.5V Sound Gain ≥45dB Battery size Built-in lithium battery Total Harmonic Wave Distortion 500Hz <= 3%</td> Battery capacity/Mah / 800Hz <= 5%...

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...