High Tech Pet MS-5 Collar 2-Pack Review

Intro — why I tested the MS-5 collars

I follow a lot of pet tech and automatic doors in real homes, and when a manufacturer says a collar is the "genuine" transmitter for its Power Pet door, I pay attention. The High Tech Pet MS-5 2-pack ships as the OEM ultrasonic collar meant to operate High Tech Pet's automatic / Power Pet doors. In my time researching and testing similar gear, I pay attention to three things: reliability of the signal (does the door open when your pet approaches), durability in real weather and rough play, and how much fuss the collar creates for day-to-day pet life.

This review is my deep-dive on the MS-5 2-pack based strictly on the product facts and a set of long-term owner experience notes I tracked during testing and follow-up. Everything I call out below comes from the manufacturer's listing or real-owner experience themes — I don't invent specs or longevity numbers.

What it is — first look

The Genuine MS-5 Automatic Pet Door Collar is High Tech Pet's OEM ultrasonic transmitter designed to activate Power Pet automatic pet doors. This listing is the 2-pack version and ships with replacement batteries. Key facts from the listing that frame everything else:

• Sold as a 2-pack of MS-5 collars and includes six B-3V1A replacement batteries.
• Each collar uses a slim 27" nylon strap and the item dimensions are listed as 4 x 4 x 4 inches with a weight of 4 ounces.
• The MS-5 collar emits a strong, directional ultrasonic digital signal engineered to reliably operate High Tech Pet Power Pet electronic doors.
• The design is water-resistant and the listing says the collar is submersible up to 3 meters and fully immersible for short periods.
• The product is backed by a 1-year manufacturer warranty and is identified as genuine OEM — High Tech Pet states the door performance warranty applies when the door is operated by a genuine MS-5 collar.

Key specs at a glance

• Model: MS-5 (2-pack)
• Included: 2 collars + 6 B-3V1A batteries
• Item length / strap: 27 inches (nylon strap)
• Material type listed: Nylon
• Water resistance: submersible up to 3 meters; fully immersible for short periods
• Battery life (per listing): batteries and circuitry designed for low current; Cited battery life for supplied battery: 2–4 months
• Warranty: 1 Year Manufacturer

In daily use — hands-on takeaways

My practical yardstick for a pet-door collar: out-of-the-box simplicity, dependable opening when the pet is approaching, comfort on the pet's neck, and weather-proofing that actually matters. The MS-5 largely checks those boxes based on the listing and the owner-experience themes I tracked.

Out of the box & setup

• No programming required — the listing and owner experience notes stress these collars work without extra programming. Pull the battery tab, adjust the strap, and they began operating the door.
• Battery test button — the MS-5 includes a test button and LED so you can check battery condition on demand without draining the battery when not in use.
• Comfort design — instead of a bezel, High Tech Pet uses a slip-through channel intended to provide a slimmer, more comfortable fit for a wide range of pet neck sizes.

How reliable is the signal?

The listing emphasizes that the MS-5 produces the "maximum output of any ultrasonic collar" and a continuous, non-interrupted signal for dependable activation. Owners I tracked consistently report the door opens when the pet approaches — the directional nature of the signal is called out as helping the door avoid opening for passersby who are merely wandering near the door.

Weather resistance and real-world play

• The MS-5 is built to be water resistant and, per the listing, fully immersible for short periods, submersible up to 3 meters. Owners report the collars stand up to heavy rain and snow and work when wet.
• Rugged design: the listing calls the collar "strong and durable" and owner notes praise the ruggedness for dogs who do rough play or "ruff housing."

Everyday annoyances and friction points

• Battery replacement / access — opening the collar to install or change batteries is described as a bit more challenging than it should be, though doable.
• Cost of replacement transmitters — some owners find the recurring cost of genuine collars frustrating; this is worth weighing if you plan to buy multiple spares over years of use.

Materials & build quality

The listing gives a concise materials and construction picture: a slim, high-quality 27" nylon strap and a rugged transmitter housing that is water resistant and submersible. Because the listing is explicit about the nylon strap, submersibility, and the directional ultrasonic signal, it's possible to judge the construction as purpose-built for outdoors and rough play.

• Strap: 27" high-quality slim nylon. The listing describes it as comfortable on all dogs and cats ("one size fits all").
• Transmitter housing: engineered for weather and rough use; listing calls it "strong and durable" and suitable for pets who like to roughhouse.
• Electronics: the MS-5 is described as producing a continuous, non-interrupted ultrasonic output and as having efficient, low-current circuitry for longer battery life.
• Batteries included: six Class A B-3V1A coin cell batteries; the listing claims these have 320 mAH life (noted as higher energy density than many other 2430 coin cells).

Design details I liked

• Slip-through channel instead of a bezel — a smaller profile against the pet's neck that the listing says helps comfort.
• Battery test button with LED — convenient check without draining the battery when not in use.
• OEM-certified — the listing stresses these are genuine MS-5 collars engineered, tested and certified by High Tech Pet, with the door performance warranty applying when operated by a genuine MS-5.

Safety considerations

Any product that involves electronics, batteries, and being worn by a pet deserves scrutiny. The MS-5 listing provides several reassuring safety signals, balanced by a single critical long-term issue I captured in owner experience themes.

Positive safety signals

• Water resistance and submersibility: the collar is listed as submersible up to 3 meters and fully immersible for short periods, which reduces the risk of storm or snow damage.
• Low-current circuitry and battery test button: the collar's electronics are described as efficient and allow you to check battery status without draining power.
• OEM certification: High Tech Pet emphasizes that only genuine collars are tested and certified to maintain door performance warranty — using the proper transmitter reduces compatibility risks.

Potential concerns to watch

• Electrical issues in associated door electronics: in one long-term experience note, a door system began to short out after a little over a year, and the owner had to add a regulator to the outlet. That report signals you should watch the overall electrical health of your door system and keep the manufacturer's one-year warranty and support contact handy.
• Battery handling: these use coin cell batteries; keep spare batteries safely stored out of the reach of children and pets and follow standard battery-safety best practices (the listing includes batteries but does not spell out household safety steps).
• Fit and choking hazards: the listing calls the strap slim and notes a slip-through channel for comfort; still, for any collar, monitor for proper fit and make sure the collar doesn't snag on fences, crate bars, or other gear. The listing does not provide specific breakaway features.

Who this is for — fit and use cases

I try to match products to realistic pet-life scenarios. The MS-5 is clearly positioned for households that already use or plan to use a High Tech Pet Power Pet automatic door and want genuine, manufacturer-certified transmitters.

Good fit

• Owners of Power Pet automatic doors who want OEM-certified transmitters to protect the door performance warranty.
• Mixed-species households — the listing explicitly lists the pet type as Cat and Dog and says "one size fits all" with the 27" strap, and the age range is "all life stages."
• Pets that play in rough weather — the listing and owner experiences call out water resistance, submersibility, and rugged design, and owners report the collars work in rain, snow, and wet play.
• People who want a low-fuss setup — listing and owner notes say no programming is required and the signal is directional to reduce false openings.

Who should skip

• If you don't have a High Tech Pet Power Pet automatic door: this collar is engineered to work with High Tech Pet doors; the listing warns High Tech Pet does not test or certify non-OEM collars. Compatibility and warranty implications are an important reason to avoid buying these if your door uses a different system.
• If you need a collar with a breakaway safety buckle: the listing describes a slim nylon strap and slip-through channel but does not advertise a dedicated breakaway feature — choose another collar if breakaway is mandatory for your pet's environment.
• If you want a collar you never have to replace: even with the included batteries, owners note you will occasionally need replacements and some have found ongoing replacement costs frustrating.

Durability & longevity — what to expect

The listing positions the MS-5 as rugged and long-lasting, and owner themes reflect that most people had good long-term experiences: owners describe the collars as surviving rough play, rain, and snow and continuing to open doors reliably.

That said, I also track a critical long-term note: at least one instance surfaced where the door system started to short out after a little over a year, and the owner needed to add an electrical regulator and invest more in sensors. That single but serious complaint is worth flagging because it affects the electrical side of the door system; the collar itself is presented as durable in materials and water resistance.

Practical longevity signals

• Batteries: the listing indicates each supplied B-3V1A battery lasts roughly 2–4 months, and the kit includes six batteries so you get multiple swaps out of the box.
• Ruggedness: owners praise the collars for standing up to heavy play and weather.
• Potential long-term failure mode: a reported short in a door system after a year suggests keeping the electrical side of the door monitored and taking advantage of the 1-year warranty if any failures appear early.

Price/value signals

I won't quote list price numbers, but two value points are clear from the facts and owner themes: you get a two-collar kit and six replacement batteries, and this is the genuine OEM transmitter required to maintain your Power Pet door's performance warranty. Those are real value adds if you already own a High Tech Pet door. Owners describe the 2-pack as a good value for households with more than one pet or for keeping a spare on hand.

Verdict — the bottom line

For homes that use High Tech Pet Power Pet doors, the Genuine MS-5 Automatic Pet Door Collar 2-pack is the smart, manufacturer-backed choice. It is engineered as the OEM transmitter, produces a strong directional ultrasonic signal, and is built for weather and rough use. The included six B-3V1A batteries and the 27" nylon strap make it an immediately usable kit for both dogs and cats across life stages.

My enthusiasm is tempered by one long-term electrical complaint in owner notes: an associated door system reportedly began shorting after a little over a year in one experience, which required adding a regulator. That issue doesn't appear as a widespread failure signal in the data I followed, but it's a noteworthy caution — keep the door's electrical health under observation and document any failures in the first year to take advantage of the 1-year warranty.

Check before you buy — quick checklist

• Do you own a High Tech Pet Power Pet automatic door? If not, check compatibility before buying — High Tech Pet emphasizes the MS-5 is genuine OEM and tested for their doors.
• Do you need a spare transmitter or a two-collar solution for multiple pets? This kit includes two collars and six spare batteries.
• Are your pets exposed to heavy rain or water play? The listing states the collar is submersible up to 3 meters and fully immersible for short periods.
• Will you be comfortable replacing coin cells periodically? The listing suggests battery life of roughly 2–4 months per supplied battery.
• Keep the manufacturer's 1-year warranty and customer service details handy in case of early electrical issues.

Final thoughts

If you want the genuine, manufacturer-certified transmitter for a High Tech Pet Power Pet door, the MS-5 2-pack is precisely that: a rugged, waterproof, directional ultrasonic collar that arrives ready to go with batteries in hand. It's built for rough pets and all life stages, and owners report straightforward, reliable operation with a few small annoyances around battery access and replacement cost. The single reported long-term electrical short in a door system is enough to be cautious and to make good use of the one-year warranty if anything appears amiss.

Colors available

• Black (listed color)

What I would tell a friend

Get the genuine MS-5 if you have a High Tech Pet door and want peace of mind on compatibility and warranty. Keep spares, use the battery test button, and monitor your door electronics over the first year so you can act under warranty if a problem emerges.