Hydrogen

Description This is a simple-to-use hydrogen gas sensor, suitable for sensing hydrogen concentrations in the air. The MQ-8 can detect hydrogen gas concentrations anywhere from 100-10000ppm. This sensor has a high sensitivity and fast response time. The sensors output is an analog resistance. The drive circuit is very simple all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC.

ST8900 SMART SENSOR Description: Multigas meter is a portable and handheld instrument that is capable to use continuously monitoring four different gas: CO, H2S, O2, LEL, when detected these gases, all the concentration will be displayed on the LCD. The unit provideds user with configure high and low alarms, also has STEL/TWA alarm function. The unit has audio and vibration visual alarm once the alarn condition is exceeded. Features: This multifunctional rechargeable detector can test for combustible gas, oxygen, carbon monoxide, hydrogen sulfide at the same time. With a large LCD screen display the measured results, you can get 4 gases concentration at a glance. This multigas monitor has sound and light vibration alarm, you can set audio alarm decibel that can give you a obvious prompt. Adopting advanced sensor, which gives a quick and accurate measurement. Portable and handheld, easy to operate and carry. Widely used in shipping, mining, oil exploitation, chemical, gas pipeline, tunnel construction, coal, metallurgy, paper, fire, municipal, textile and other industries. Specification: Brand SMART SENSOR Model number: ST8900 Operation current 230mA Operation voltage 3.7V Battery type(include) BL-9C Plug type EU Plug 220V, US Plug 110V (Optional) Operation humidity 15%-95% Storage temperature 0-40℃ Dimension 75*138*43 MM Short circuit current ≤3A Maximum open circult voltage ≤4.2V Display Type Segment type LCD Operation temperature -10℃-50℃ Weight 753/26.6oz Battery working runtime 6 hours(no alarm) Detection Gas Carbon Monoxide(CO, Hydrogen Sulfide(H2S), Oxygen(O2), Combustible Gas(LEL) Resolution CO: 1ppm, H2S: 1ppm, O2: 0.1%VOL, LEL: 1%LEL Measuring range 0-999pm(Carbon Monoxide) Measuring range 0-500ppm(Hydrogen Sulfide) Measuring range 0-30%(Oxygen) Measuring range 0-100%(LEL) Warm up time 20 Seconds

QUANTUM PENDANT*This pendant restores the natural balance of our body. Due to the negative effect of "EMF"from power lines,home wiring,airports and military radar,substaion,treansformer,computer,cell phone and applinces cause everything from brain tumer,leukemia,and other cancer to birth defects,miscarriages,chronic fatigue,headaches,and other health problems.best investment on your health.by japan This is the best scalar energy pendant in the world! Get the best result! Buy genuine scalar energy pendant! Buy only to authorized distributors.www.health-energy-pendant.com...life testing *SCALAR ENERGY Pendant * A unique formulation! Volcanic Minerals * Mineral Stones Feeling is believing. Recharge your life. *Energy *Strength *Balance* Flexibility* Focus* Performance* Productivity * Europe, Australia, Russia, Japan, Pakistan, India Our pendants are guaranteed 100% made of genuine volcanic minerals and mineral stones. It will immediately restore our body's natural balance through molecular energy resonance technology. It contains powerful volcanic minerals that are structurally bonded together through fission technology. All minerals are carefully selected and bonded to release a large amount of scalar energy that will instantly restore the body's bio-field, which is essential to balance the electrical activity of our body system. How does Scalar Energy work? 1. It eliminates and nullifies the effects of man made frequencies (60 cps) in the human body. 2.The energy level of every single cell in the body is increased to the ideal 70 to 90 milli-volt. 3. Scalar energy increases the energy covalent level of every single hydrogen atom in the body. This is significant because covalent hydrogen bonds is what holds your DNA together. In other words, wearing scalar energy pendant can protect your DNA from damage. HEALTH BENEFITS: 1. Restores the body's natural balance 2. Improves blood circulation 3. Increases the body's metabolism 4. Boosts energy level 5. Absorbs negative energy 6. Reduces stress 7. Improves good and quality sleep 8. Restores cell regeneration, anti-aging 9. Promotes mental alertness and focus 10. Reduces inflammation 11. Activates and recharge the body cells instantly 12. Increases the body's biofield 13. Eliminates jet lags and body pains like headache, toothache, lower back pains, arthritis, etc. www.health-energy-pendant.com Asif Baig Box Pack- Warranty: 1 Year

The Energen 12Volt gel valve regulate lead acid battery by i-power is a “recombinant” battery, meaning that the oxygen produced on the positive plate recombines with the hydrogen given off by the negative plate. The “recombination” of the hydrogen and oxygen produces water (H2O), which replaces the moisture in the battery. Therefore making the battery maintenance-free, as it never needs water. The battery adopts colloid electrolyte technology, avoiding density stratification problem of acid solution and eliminating plate corrosion and passivation caused by density stratification. It is suitable for harshest of grid conditions, as the rich electrolyte inside the gel battery make it stable in high temperatures. The maintenance-free Energen gel battery will provide safe non-spillable power for a variety of 12V power applications. Product Highlights: • Available in 26Ah- 200Ah range. • 12 years design life in float service. • Maintenance free (no water topping-up required). • Spill-proof construction. • Wide operating temperature. • Low self-discharge rate. • Aesthetic design. • Cyclic discharge applications. Applications: • Utility • Telecom • UPS systems • Emergency lighting • Alarm systems • Harsh grid operations

i want to sale my pendant 6 months use... Type: Medical Type: pendent Benefits of scalar energy: 1) Improve cell energy to mv, relieve fatigue,fatigue and muscle inflexibility 2) Strengthen the Hydrogen bond energy between DNA,it will protect DNA cellula from damage,prevent cancel. 3) Improve penetrability of cell wall,promote the cell alibity of deriving nutrients. 4) Improve our detox system 5) Refine blood,improve blood state and help ajust blood pressure 6) strengthen immunity system 7) Promote our concentrating attention,keep mind clear and good eyesight 8) Eliminate the negative effects of man-made frequency in body (60 cps) The source of health--Scalar energy, continuous energy provided for you!! Condition: 6/10 - No Warranty

Scalar energy is a subtle energy that can be harness to produce healing energy frequencies that can through, while experimenting with violently abrupt direct current electrical charges. Scalar Energy has exited since beginning of time.It's a natural energy,no side-effects. It can adjust our body cell to optimum,help you play your best in movement. It's made with German high tech,with more than 70 kinds of rare trace elements which will do good to our health. -improve our physical strength and energy -reduce electromagnetic radiation -improvesexual capacity -improve our immunity system -improve our health -relieve stress -improvesleep quality -strengthen memory -promote attential --with better analytical ability feature of scalar energy: 1) scalar energy will move in all directions and diffuse,it will fill in all the space around.It can go through solid but without any decrease on strength. 2)Scalar energy can go into solid,and it will keep permanent and won't lose 3)It can remold itself infinitely. 4)scalar energy can attach to DNA Benefits of scalar energy: 1) Improve cell energy to mv, relieve fatigue,fatigue and muscle inflexibility 2) Strengthen the Hydrogen bond energy between DNA,it will protect DNA cellula from damage,prevent cancel. 3) Improve penetrability of cell wall,promote the cell alibity of deriving nutrients. 4) Improve our detox system 5) Refine blood,improve blood state and help ajust blood pressure 6) strengthen immunity system 7) Promote our concentrating attention,keep mind clear and good eyesight 8) Eliminate the negative effects of man-made frequency in body (60 cps) Box Pack - No Warranty

Type: Medical Type: pendent Benefits of scalar energy: 1) Improve cell energy to mv, relieve fatigue,fatigue and muscle inflexibility 2) Strengthen the Hydrogen bond energy between DNA,it will protect DNA cellula from damage,prevent cancel. 3) Improve penetrability of cell wall,promote the cell alibity of deriving nutrients. 4) Improve our detox system 5) Refine blood,improve blood state and help ajust blood pressure 6) strengthen immunity system 7) Promote our concentrating attention,keep mind clear and good eyesight 8) Eliminate the negative effects of man-made frequency in body (60 cps) The source of health--Scalar energy, continuous energy provided for you!! Box Pack - No Warranty

Main chip: the LM393, MQ-8 gas sensor Working voltage: DC5V 1. With a signal output instructions. 2. Dual signal output (TTL level output and analog output) 3. TTL output valid signal for low level. (when the low output electric signal lights at 4. ordinary times, can be directly pick up SCM) 5. Analog 0 ~ 5 v voltage, the higher the concentration, the higher the voltage. 6. High sensitivity to hydrogen 7. Can be resistant to ethanol steam, LPG (petroleum), smoke interference 8. Has a long service life and reliable stability 9. Quick response recovery features Other types of sensor modules are also available on our website with delivery to anywhere in Pakistan. Website http://electronicspanga.com