Power Source: Internal 12V Battery (Type 23A)
Frequency: 433MHz
Transmission power: 350mW
Current consumption: 9mA active
Physical Size: 65 x 32 x 14mm
Weight: 30g
Storage Temp: -10 C to +55 C
Operating Temp: 0 C to 40 C
Operating Humidity:
6 months – lifetime warranty
Enquire for more details
The Sentry 3 Button Code Hopping Transmitter 433MHz is a secure, versatile, and user-friendly remote designed for controlling multiple access points. Operating at 433MHz, it ensures strong, stable signals and wide compatibility with Sentry code hopping receivers.
With three programmable buttons, this transmitter offers convenient multi-device control — perfect for managing gates, garage doors, or other automated systems from one compact unit.
Enhanced with code hopping technology, the transmitter generates a unique rolling code with every press, significantly reducing the risk of cloning or unauthorised access. Built to last, its durable and portable design makes it ideal for both residential and commercial applications.
| Feature | Description |
|---|---|
| Multi-Device Control | 3 programmable buttons |
| Secure Transmission | Code hopping encryption prevents signal copying |
| Frequency | Operates at 433MHz |
| Compact Design | Portable and keyring-friendly |
| Reliable Signal | Stable and consistent performance |
| Durable Build | Designed for long-lasting use |
| Specification | Value |
|---|---|
| Product Name | Sentry 3 Button Code Hopping Transmitter 433MHz |
| Frequency | 433MHz |
| Channels | 3 buttons |
| Technology | Code hopping encryption |
| Compatibility | Sentry code hopping receivers & systems |
| Power | Battery operated (coin cell) |
| Dimensions | Compact handheld design |
Warranty
Our products are covered by a manufacturer’s warranty ranging from 6 months up to a lifetime, subject to the specific item. For detailed warranty information, kindly enquire with our support team.
South Africa: 1-3 Days
Free Shipping Over R6000
International: 2-5 Days
Great gun, feels real, looks real, and sounds real as well, will recommend this purchase
The markers work easily and perform exactly as expected.
Stunning Cooler and good service received
Very Happy ...Card works great Fast reconnect Strong Signal
Fast service. Package good. Looks brand new.
The turbo fitted my np200 correctly I’m happy
Yeah gud stuff but I’m still waiting 4 my umarex
Great Professional Service. Thank you
Very good quality and services 👌 Thank you
Great value
Cold Steel 92FK FGX Kerambit-fixed Blade Knife.
Was sceptical at first, being a plastic knife and all.
Now I love it! It has a purpose and is not ambiguous about it at all!
A great way to experience the Kerambit before committing to the "Real Deal"
Very good and fast to be delivered
Received my fragrance! Very happy and would definitely buy again from this shop
Doing fine with the inverter
It was really a pleasure doing business with you guys.....fast and easy everything packed neatly and the boxes was in good condition I would definitely recommend new client to you guys . From my side well done to you guys . Keep up the good work .
Kind regards Dawie
Recently Viewed
Welcome to GUNMANSA — where tactical culture, modern tech, self-defense gear, electronics, and premium lifestyle products come together in one powerful shopping experience.
We work hard to ensure your order arrives quickly, securely, and professionally packaged.
Many products are shipped in discreet packaging for added privacy and professionalism.
Your experience matters to us. We aim to provide reliable support before and after your purchase.
Returns may be accepted based on product condition, packaging condition, time since delivery, and product category restrictions.
Our support team can assist with product guidance, order updates, compatibility questions, technical support, and returns & exchanges.
Certain products sold by GUNMANSA require responsible handling and adult supervision where applicable.
Some products may require setup or accessories, have age-related restrictions, need batteries/gas/ammunition/accessories, or require maintenance.
Shop confidently knowing your information and payments are protected.
Delivery times vary depending on your location and product availability.
Yes — tracking details are typically provided once orders are dispatched.
Eligible returns may be accepted according to our returns policy.
Some items include supplier/manufacturer warranty coverage.
Yes — we ship across South Africa.
Join GUNMANSA Insider
South Africa’s trusted online store for self-defence, tactical gear, blank guns, air guns, electronics and security essentials.
!