I picked up this ThermoDrop Zipper-Pull Thermometer to help fill in the temperature data gap in my favorite areas to explore in my area. The forecasts in my area come out of a city that is about 2 hours away by car and there are countless microclimates between here and there. There are mountain weather websites that do their best to make some algorithmic guesses about forecasts but they often miss the mark which leaves me guessing about how to gear up for trips into the mountains.
Last summer, I spent a night out on a mountain bench just below the tree line. According to forecasts for that elevation, I should have seen temperatures down around 32F. The actual temperature never went lower than 56F which was MUCH closer to the forecasted temps for the valley below. This will help inform future trips into this area.
There are a few specific attributes of the ThermoDrop that make it so useful. First, it is extremely compact and lightweight (smaller than the diameter of a US quarter and weighing in at half a gram). Second, it shows the current temp but also records the lowest and highest temp since it was activated which is the real game changer versus most cheap zipper-pull/keychain thermometers.
I have found no end to the usefulness of this little thermometer. I’ve used it to monitor the temperature inside a cooler during power outages, check temps in a crawl space during a cold snap, test my comfort level in various sleeping bags and insulation layers, and even check temps on training runs/walks during hot summer days.
This is GREAT gear that has changed the way I hike and train. It is small enough that you’ll never leave home without it and useful enough that you won’t want to. I highly recommend it.
Pokka Pens are one of my favorite purchases of 2023. These tick all the boxes for me as an EDC pen – they’re affordable, they’re lightweight, they’re easy to carry at the bottom of a pocket, they last of LONG time, and they will write in places that a nicer gel pen or roller ball might not.
The real innovation of the Pokka Pen is the form factor. It is a half-size pen that has a long, snap-on cap. When the cap is posted, it is long enough to create a full-size pen. They are so compact that there is no need to clip them in a pocket. Just drop it into the bottom of your pants pocket and you’ll never know it’s there until you need it.
Pokka Pens can be great as your only pen for EDC or as a second pen. The latter is how I typically use them. I like nice pens and I typically carry one daily. However, when it comes to being able to write on almost anything, it is hard to beat the good old ballpoint pen with its oil-based ink. There are a lot of things like receipts that gel pens, roller balls, and other inks just struggle to write on but the Pokka Pen handles this easily (this includes Rite in the Rain paper).
These are available in several versions and with a variety of add-ons like clips, aluminum caps, and more. All of that is nice, but for how I use these pens, I like the plain-jane ballpoint type (similar to a Bic pen). The basic ballpoint Pokka Pen does everything I need it to very, very well. If you intend to use these in the elements, Pokka Pens does make a slightly more expensive version with pressurized ink that will write in even more challenging conditions.
When I am carrying a nicer pen, there is Pokka Pen in the bottom of my pocket as well. When I only carry one pen, it’s a Pokka Pen.
Where to buy:
Refills are available direct from PokkaPens.com and are very easy to install. I buy my Pokka pens in multi-packs on Amazon where they are available in a variety of colors: Pokka Pens on Amazon
There are many, many overdone field knife sharpeners on the market but very few that I would consider carrying regularly. That is why I love my USA-made, easy-to-carry Hewlett Two-Sided Diamond Sharpeners with medium (600) and fine (1800) grits. I have had a couple of these knocking around for years now. It might be the most versatile, easiest-to-carry, field sharpener I own.
These diamond plates are the right size – small enough to carry in their included sleeve and large enough to actually work. They are just under 4″ long, 1.25″ wide, and just about 1/16″ thick. They weigh just over 1 ounce.
I rarely use the medium side but it is coarse enough to get some mild reprofiling done in the field should you take some chips out of an edge. The fine side is all I usually need to touch up an edge before finishing with a quick strop.
I have even used mine to strike a ferro rod and scrape tinder like fat wood thanks to the crisp edges on the plate. It isn’t meant for that and I am sure it isn’t good for it… but it works.
I purchased a SOG Tellus FLK a while back because I couldn’t resist what appeared to be a very good deal for a large folding knife. I was also intrigued by its surprisingly lightweight given its size and the way SOG executed the frame-lock (more on this later).
SOG states that the Tellus FLK is an “outdoor workhorse,” which is certainly the vibe I get from this knife. The blade shape, size, and overall feel in the hand remind me a lot of past Zero Tolerance/Rick Hinderer collaboration knives and that is a complement. The knife feels like it is ready to work thanks to SOG’s design choices.
The first thing I noticed about the Tellus FLK is its weight. Now, I am not saying this is a lightweight knife but it one of those knives that messes with your head a bit. When you pick this up, you expect it to feel much heavier than it does. It feels very light for its size. This is thanks to SOG’s choice to mill out very large voids in the liners and likely the use of polymer for several parts of the knife including the scales, backspacer, and even the thumb studs.
Those polymer thumb studs are actually very comfortable to use and the blade deploys easily when using them. In fact, I greatly prefer them to the flipper tab that this knife also includes.
The scales have diagonal, grooved texture that offers a ton of grip without being aggressive or hard on your pockets. They are relatively thick and well-contoured. The polymer scales are affixed to the steel liners via internal, nested screws. SOG also chose to affix a small section of scale to liner-turned-frame-lock which improves the comfort in this area. This is the kind of innovative thing that can and should be done with polymer handles!
The 440C used in the Tellus FLK’s broad, drop point blade is easy to resharpen and seems relatively tough. The height of the blade, coupled with a nearly full-height flat grind allows the blade to really thin out behind the edge. This knife cuts better than a lot of knives with even thinner stock thanks to this cutting geometry. It is impressive in this regard.
The pocket clip is reversible and offers a ton of clearance for pockets with chunkier fabrics. The position is somewhat low on the knife which, for me at least, allows it to fall in a comfortable part of my grip rather than being way out toward the edge of my hand.
The blade locks up solidly though there is some slight side-to-side play which is typical for larger bladed folders with ball-bearing pivots.
All of that sounds pretty good (and it is) but there are a few design choices that leave me scratching my head. First, I am little confused by the use of a ball-bearing pivot given the “outdoor workhorse” intentions of the Tellus FLK. Boring old PB washers would like stand up to fouling more readily and might have even been cheaper. Second, the pivot screws on this knife are fairly large but they went with a T6 driver… and that fits kind of loose. Be careful when adjusting the pivot on this knife. Again, different hardware might have made more sense for this design.
Wrap Up
This knife offers a combination of features that make it very attractive at the price: standout ergonomics, tough stainless steel, great cutting geometry, and multiple deployment methods. It is also significantly larger than a lot of knives in this price range and that is worth something if you need a larger knife for your application.
I like the Tellus FLK so much that I could see choosing this over other classic, low-cost work knives like the RAT 1 just based on just how much knife you get for the money. I’m impressed.
I purchased the SOG Tellus FLK with my own money, from Amazon: SOG Tellus FLK
I have a long history with the NU series of headlamps from Nitecore. I have used a number of them, carry one daily in the winter, and have written about them on these pages before. When I was given the chance to check out one of the newer lights in the series, the NU33, I jumped at the chance.
Nitecore’s NU series of lights are all defined by a number of features and design elements. They feature integral USB rechargeable batteries. The lights are generally compact and lightweight while also featuring multiple outputs and, often, multiple types of outputs like white, high CRI, red, etc. They also tend to feature well-thought-out user interfaces. The NU33 checks all these boxes.
Overview
The NU33 weighs in at just 3.38 ounces on my scale. This weight includes its aluminum outer construction and integral 2000 mAh lithium battery. It is USB-C rechargeable which is a VERY welcomed change over previous headlamps in the NU series with Micro USB charging. It features three different lighting options: a central white LED, auxiliary high CRI white flood light, and red LED light. Outputs and runtimes are included in the image below.
Observations from Use
I’m not going to share charts, graphs, and pictures of light spots on white walls. Those things can be valuable but I don’t think they will tell the story of just how practical this light is. This light is not flashy in terms of lumen stats but it is exceedingly useful. The care that Nitecore put into making this light easy to live with is impressive.
NU33 (top) shown with the modern classic NU25
First of all, check out those runtimes. Nitecore was somewhat conservative with outputs in favor of runtime. As someone who uses a headlamp daily in the winter, I appreciate that. The main white light, in low mode, will provide 60 regulated lumens for a staggering 37 hours dwindling to about 38 hours according to the runtime graphs provided in the manual. To put that in perspective, it wasn’t that long ago that most headlamps topped out at 60 lumens and we were thrilled with that. It is very useful amount of light for a very long time.
Those lumens are made even more useful by the design of the lens/diffuser that Nitecore uses. It provides a perfectly smooth hotspot that throws well while illuminating a large area. Cleverly, the entire face of the light acts like a diffuser so that you have a light cast over a very wide area as well. This means that even with the light angled high to look as far ahead as possible, there is still light being cast at your feet. I have never seen another headlamp pull off this combination of hotspot for distance and diffused light for area lighting so well.
All light modes are accessible via a simple two button interface.
The auxiliary light modes, high CRI and red, are both useful. That usefulness is maximized by the fact that they are both directly accessible when the light is off meaning there is no need to cycle through the brighter modes, which is a truly great feature of a great UI.
The high CRI light is a feature that I grew to love on my NU25. It’s floody, with no hotspot, very easy on dark-adjusted eyes, and it renders colors faithfully which is handy for tasks like map reading. Best of all, it comes on at a nice, easy-on-the-eyes 6 lumens but can be bumped up to 50 lumens. I can tell you from experience that the low mode is more than enough to walk a dark trail or navigate a dark room and you can do this for 147 hours!
The red light could stand to be a little dimmer to be truly useful but it is available directly from “off” which is great. The red LED also offers a flashing mode which could be useful for those who intend to use this for early morning runs where you might be using this headlamp to be visible to drivers more than to see where you are going.
Switching back to discussing the main white light, the spacing on the 60, 200, and 700 lumen modes is excellent with each offering a large step up in brightness and also balancing run times. The 200 lumen setting is perfect for most uses with a generous 9 hour runtime. The 700 lumen mode has enough punch to really look a long way up the trail while still offering 4 hours of runtime which is noteworthy in a world where most lights offer a high output mode that runs for only about an hour. This sort of well-balanced separation between modes is easy to get wrong but Nitecore nailed it.
The front portion of the NU33’s case is made from anodized aluminum. This is nice for both durability and conducting heat away from the light. The body of the light is fairly compact considering the size of the battery that it houses which makes this light easy to carry and easy to wear. I also think Nitecore has improved the bracket design versus previous lights in the NU series like the NU20 and NU25 which have somewhat fragile brackets.
Previous offerings in the NU series of lights had battery meters but they weren’t as easy to use as the improved meter found on the NU33. Now, instead of having to count dim flashes, the battery level displays on a simple four level LED readout. It is far more foolproof.
Easy to activate and read battery level indicator
I am gushing so far but there are improvements that could be made. For instance, many of the NU series headlamps have a clever silicone rubber bead applied to the inside of the head strap. This prevents sweat from dripping down and helps the strap really lock in place. This feature is curiously missing from the NU33 and I miss it. In addition to my gripes with the red light being too bright, I find it annoying that the light flashes brightly when locking the buttons to prevent accidental activation though I do appreciate that Nitecore provides an option to lock the switches to prevent accidental activation in a pocket or pack.
Wrap Up
I was already a fan of the NU series of headlamps and this NU33 has solidified my love of these lights. It takes everything that was great with the previous NU series lights and makes improvements to the UI, charging interface, and construction. It also offers excellent, useful modes that are well-spaced and easily accessible. Best of all, it goes hard on useful outputs with useful runtimes rather than chasing impressive lumen claims to print on the box.
This is a truly excellent headlamp that retails under $50!
