Blitzwolf BW-FD4 Automatic Liquid Alcohol Dispenser Review – Smart Home Review

Table of Contents

Today we at Techzalo bring you a comprehensive review of the Blitzwolf BW-FD4, an automatic alcohol dispenser with smart sensor technology built to handle almost all kinds of sanitizing liquid from hand soap to alcohol-based gels and the like.

A global pandemic is a time of fear, enforced health and sanitation standards, and improved hand hygiene. We’ve been on high alert, scrutinizing just how often we wash our hands, touch our faces, or shake hands every day. We’re conscious of how fast viruses and bacteria spread when our fingers come in contact with various surfaces. The key weapon of self-defense in everyone’s arsenal is now a bottle of alcohol or hand sanitizer.

You may have one in your bag right now. You may have a built-in alcohol dispenser installed at home or in the workplace. But maybe you don’t or you’re looking for a better option. With all the choices popping up these days in all shapes and sizes and price ranges, how do you choose which liquid dispenser is right for you?
Let’s take a look at why this smart dispenser from Blitzwolf may just be the one you’re looking for.

Blitzwolf BW-FD4 Automatic Alcohol Dispenser - Smart Home Review

BlitzWolf BW-FD4 Specifications

Brand BlitzWolf
Model BW-FD4
Capacity 410 mL
Material ABS Plastic
Voltage DC6V
Batteries AA (4 pieces)
Battery Life 6 months
Effective Temperature Range 5-40℃
Effective Humidity Range 0-85%
Sensor Distance 1-6 centimeters
Speed 0.25 seconds
Weight 224 grams
Dimensions 100 mm (from the tip of the nozzle to other ends of dispenser cap) x 70 mm (diameter) x 212mm (height)

Blitzwolf BW-FD4 Automatic Alcohol Dispenser — Smart Home Review

Product Review

What’s great about the Blitzwolf BW-FD4 is that it’s hands-free.
The last thing you want is to accidentally create yet another avenue of virus transmission because everyone’s pressing on a manual pump. That’s the exact opposite of what you need from an alcohol dispenser. Fortunately, the BlitzWolf BW-FD4 solves that.

Equipped with an intelligent, quick-reacting, near-field infrared sensor, it has an effective sensing field of one to six centimeters and works almost instantly. Just place your hand under the nozzle, and in less than a second, it squirts the right amount of liquid directly into your palm. No noise, no fuss, no waste. The waiting time is, amazingly, only one-fourth of a second, which is just what you need when you’re beating deadlines and don’t have a second to waste.

If you’re not a fan of bubbly froth that may leave residue on the nozzle, you’ll be pleased to know that the BlitzWolf BW-FD4 does not foam. The main advantage of this is that you no longer need to dilute the soap or sanitizer with water because the original formula happens to be too thick to flow through the tube. The BlitzWolf BW-FD4 saves time and spares you from extra hassle; all you have to do is fill up the bottle and the micro-motor will do its job.

Energy Efficient

Switching to the BlitzWolf BW-FD4 comes with the benefit of low power consumption. Four standard AA-size batteries last approximately six months on standby mode — plenty of time to squeeze out refill after refill. The built-in micro-motor is quiet and efficient, which is great if you’re fed up with loud, startling noises you may have heard from other units. Bragging rights aside, you don’t really need to let the whole world know how often you’re washing your hands.

The device operates at an optimal temperature range of five to forty degrees Celsius. Above or below that, you may face issues with the consistency of the liquid or the effectiveness of the motor. Just a heads up; even if the material used is sturdy and temperature-resistant, you don’t want to inadvertently leave it freezing outdoors or expose it for long hours under the fiery summer heat.

There’s also no need to worry about suddenly losing power right when you need it the most. The BlitzWolf BW-FD4 has a LED indicator light on top that stays blue when the unit is operating well and flashes red to warn you when the batteries have run low. When it’s time to replace the dead batteries, simply twist the dispenser counterclockwise, then remove the silica gel padding and replace the batteries. Return the silica padding and screw the dispenser back onto the bottle, and you’re good to go.

Blitzwolf BW-FD4 Automatic Alcohol Dispenser - Smart Home Review

Space Saver

The BlitzWolf BW-FD4 has a decent capacity of 410 milliliters and can dispense soap about 500 times before it runs out, letting you go longer between refills. Despite that, it’s designed to be sleek and compact, so it fits easily in corners and narrow spaces with a minimalist design that won’t take up too much space on your desk or kitchen sink.

The ergonomic nozzle of the BlitzWolf BW-FD4 can handle most liquids except extremely viscous liquid soap and sanitizer with a thick, gel-like consistency. In that case, you may need to dilute the soap or sanitizer with 10% water. For most liquids, it works just fine.

It is made of ABS plastic which is durable, chemical and stress-resistant, stain-proof, and resistant to scratches. The plastic bottle is transparent so you can easily tell how much and what type of liquid you put in the dispenser, to prevent any mistakes.

Blitzwolf BW-FD4 Automatic Alcohol Dispenser - Smart Home Review


The micro-motor is designed to be safe from water damage, and the batteries are protected by silica gel padding to prevent corrosion due to contact with liquids or extreme humidity beyond 85%. The BlitzWolf BW-FD4 is rated Ingress Protection Waterproof (IPX4) by international standards, so you don’t have to worry if you accidentally splash heaps of water or any other liquid on the unit.

Blitzwolf BW-FD4 Automatic Alcohol Dispenser - Smart Home Review


  • Contact-free; a quick-reacting infrared sensor does the work
  • Fast; wait for only one-fourth of a second
  • Waterproof; the batteries and motor are safe from corrosion
  • Transparent; see the amount of alcohol or sanitizer left in the tank
  • Affordable; of course, it’s up to you what brand of sanitizer you choose
  • High capacity; it dispenses up to 500 times before needing a refill
  • Low power consumption; four standard AA-size batteries last six months
  • LED battery health indicator; you’ll always know when to replace batteries ahead of time


  • Needs four AA batteries to operate
  • Not suitable for extremely viscous liquids or very thick gels
  • Extreme heat and humidity may affect device operation
Design Performance Features Battery Average
9/10 9/10 9/10 8/10 8.8

Blitzwolf BW-FD4 Automatic Alcohol Dispenser — Smart Home Review


For a product with this many features, the BlitzWolf BW-FD4 is quite affordable. Many good reviews by satisfied customers are a testament to the brand’s efficiency and functionality. Rest assured, it’s Blitzwolf quality.
With its low-power micro-motor, long battery life, and highly-sensitive infrared sensor packed into a compact, sleek design, the BlitzWolf BW-FD4 fits right into your home.
Catch more smart home reviews here at Techzalo, where we review gadgets, electronics, and smart products to find the best match for your techy lifestyle.

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