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Highlights of S1/S1 LF
PTT Unlike Any Other
Another PTT in the front—enlarged size, circle shape, and phonograph-record-like texture.
Airy-light Design
135 g in weight. All for one-hand operation on the go.
Light for U
Four LEDs tell you the radio status in their own way.
Dual PTT
Talk with either of two standby groups—not just one as before.
Talk Freely
Cover 3-5 floors and 3-5 km in urban areas; meet the indoor communication needs of
more than 10,000 square meters.
Outlast Your Shift
With a battery life of up to 27 hours (0.5W) or 15 hours (3W) of working time and
360 hours of standby time, your focus remains on the job, not the clock.
Channel Copy
Quickly communicate with your existing radios, regardless of brands and models.
AirClone
You can clone configuration data from one S1 to many. All done in a flash.
Hytera Radio APP
Manage your radio with a phone, at your fingertips. Perform BT-enabled programming,
batch configuration, frequency information backup, and then some.
Specifications of S1/S1 LF
- General
- Receiver
- Transmitter
- Environment
| General | ||
|---|---|---|
| Model | HYT-S31/HYT-S31 LF | |
| Frequency Range | 400-470 MHz (Main Unit) /446 MHz | |
| Channel Capacity | 48 | |
| Zone Capacity | 3 | |
| Channel Spacing | 12.5kHz/20kHz/25kHz | |
| Operating Voltage | 3.8V (Rated) | |
| Battery | 2200mAh Li-Polymer | |
| Battery Life (5/5/90 Duty Cycle, TX Power) | 15 hrs (3W) /22 hrs (1W) /27 hrs (0.5W) | |
| Frequency Stability | ±2ppm | |
| Antenna Impedance | 50 Ω | |
| Dimensions (HxWxD) | 108*53*20mm (Without antenna) | |
| Weight (With battery and antenna) | 145 g (With belt clip） 135 g (Without belt clip) | |
| BT | BT (only data) 5.0 | |
| Receiver | ||
|---|---|---|
| Sensitivity | 0.14μV | |
| Adjacent Channel Selectivity | ETSI: 60dB@12.5kHz / 70dB@20/25kHz | |
| Intermodulation | ETSI: 65dB@12.5/20/25kHz | |
| Spurious Response Rejection | ETSI: 70dB@12.5/20/25kHz | |
| Blocking | ETSI：84dB | |
| Hum&Noise | 40dB@12.5kHz； 43dB@20kHz； 45dB@25kHz | |
| Rated Audio Power Output | 0.5W | |
| Rated Audio Distortion | ≤5% | |
| Audio Response | +1~-3 dB | |
| Conducted Spurious Emission | <-57 dBm | |
| Transmitter | ||
|---|---|---|
| Power Output | 400-470 MHz: 1W / 3W (low/high) 446 MHz: 0.5W | |
| FM Modulation | 11K0F3E@12.5kHz 14K0F3E@20kHz 16K0F3E@25kHz | |
| Conducted/Radiated Emission | -36dBm＜1GHz -30dBm＞1GHz | |
| Modulation Limiting | ±2.5 kHz@12.5 kHz; ±4.0 kHz@20 kHz; ±5.0 kHz@25 kHz | |
| FM Hum&Noise | 40 dB@12.5 kHz; 43 dB@20 kHz; 45 dB@25 kHz | |
| Adjacent Channel Power | 60 dB@12.5 kHz; 70 dB@20/25 kHz | |
| Audio Distortion | ≤3% | |
| Environment | ||
|---|---|---|
| Operating Temperature | -10℃ ~ +55℃ | |
| Storage Temperature | -30℃ ~ +70℃ | |
| ESD | ±4kV (Contact) ±8kV (Air) | |
Related Video
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Hytera Business Two-way Radio S1 Product Video
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S1 Tutorial - Quickstart Guide
Standard Accessories of S1/S1 LF
Optional Accessories of S1/S1 LF
Frequently Asked Questions
What is the top concern when the commercial user chooses two-way radio?
As an essential communication tool, two-way radio is favored by business and commercial customers, such as supermarkets, hotels, and restaurants.
Work staff often wear radios and use them frequently all day, running upstairs and downstairs to provide services.
Therefore, when buying a radio, broader communication coverage, long-lasting battery life, and ease of carry are critical considerations.
Work staff often wear radios and use them frequently all day, running upstairs and downstairs to provide services.
Therefore, when buying a radio, broader communication coverage, long-lasting battery life, and ease of carry are critical considerations.
Commercial users/staff often put the radio on the waist; it is easy to pull the cable and cause the earpiece to disconnect. How do we resolve this issue?
To solve the problem of earpiece disconnection, Hytera S1 and S1 pro adopt an innovative lock design. There is a minor groove in the earpiece connector. After inserting them into the radio jack, you need to rotate 90 degrees to lock them. In this way, even if you pull the cable hard, the earpiece is still secured to the radio and linked tightly together.
Commercial users may need a lot of time to finish multi-server radio programming one by one, with low efficiency; how fast is this process?
Hytera S series radio supports innovative Air Clone technology based on BT; the one S series terminal data can be quickly synchronized to the same model over the air, realizing configuration copy and paste; it's done in seconds and one to many in a snap.
How could S1 and S1 Pro boost commercial users' service quality and image?
S1 and S1 Pro are famous for their excellent design (IF Design Award 2024).
They are free from superfluous details, resulting in a sleek, modern form. Smooth surface and fluid curves, making the S1 and S1 Pro affinity unsurpassed.
In addition, S1 and S1 Pro have two color choices: metallic gray and pearl white.
Pearl white shines like a pearl with a brilliant shimmer. The exquisite spraying technology lets you feel the art of light in your palm.
Metallic gray exudes a sense of calmness and firmness, making you confident to do your work better.
The S1 breaks with tradition by adding one more eye-catching front large PTT button. It blends classic radio elements with exquisite craftsmanship and forward fashion.
The S1 Pro is a digital radio. Its design concept comes from ancient Greek Doric order lines, exuding a solemn, stable, and majestic atmosphere.
It strikes the perfect balance between elegance and performance and always gives your business a competitive edge.
The S1 has two PTT buttons; how does it make communication more efficient?
The dual PPT design doubles the communication efficiency.
The two PTT buttons could link and stay at two different channels to avoid frequent channel switching, which makes communication more efficient.
More than this, the two PTT buttons are internally intelligently associated. No matter the channel call, pressing any PPT button will call back and respond.
Dual PTT, dual standby, dual efficiency.
How do you select between S1 mini / S1 / S1 Pro?
S1 mini, Keyword: mini
A typical target for restaurants, retail stores, beauty salons, and bookstores. Limited indoor flat area communication (<10,000 m2).
It is ideal for the end user who is very concerned about the weight (only 48g ≈ one egg) and size (99*30*16mm ≈ one lipstick) of the radio and wants to wear it anywhere (check, pocket, belt, or lapel) to show their chic style. It is also suitable for users who need an earpiece to wear comfortably and want to show their professional work image to customers (4-digit number displayed, match to table/box/staff/counter ID).
S1, Keyword: Fashion, Dual PTT
A typical target for malls, supermarkets, warehouses, and hotels with indoor area communication (>10,000 m2), 3-5km in an urban downtown.
It is suitable for the personal consumer who needs an ultra-lightweight (135g)and loud radio for travel, city walks, or as family tools.
It is also ideal for the end user who needs a fashion style to increase their professional image and to have more color choices to meet their dress requirement (pearl white/metallic grey). The end user wants an easy touch for a more efficient call (Side PTT + Front oversized PTT button).
S1 Pro, Keyword: Digital, AI-based Noise cancellation, Private call
Strongly recommended for heavy noise environments, typically like entertainment venues (BAR, Disco, KTV, Casino). indoor area communication (>10,000 m2).
It's targeted at high-end customers, like luxury hotels, central downtown shopping malls, and golf clubs, which need fashion styles to increase their professional image (iF Design Award) and more color choices to meet their dress requirements (pearl white/metallic grey).
The S1 Pro is also suitable for end users who care about communication privacy and encryption (4-character code, discreet call).
The end user wants a better audio experience (whisper mode, howling suppression) and easy operation (1.3-inch OLED for HMI).
Long-time wearing of an earpiece will cause ear pain and even irreversible damage, typically like hearing loss. How to protect commercial users/staff ears?
To eliminate ear pain, Hytera made three Ergonomic designs for the earpiece of the S series.
First, the earpiece is very light, only 10g. This earpiece adopts an auricle design. Unlike an in-ear earpiece that directly compresses the acoustic meatus, it hangs on the ear.
In addition, we know the ears are sensitive parts of the body. The earpiece is designed with ultra-soft silicone and elastic and is a perfect fit for ear protection.
Finally, the earpiece socket supports 180-degree rotation. You can adjust and switch to any ear. The perfect balance happens between work and rest for either ear.
First, the earpiece is very light, only 10g. This earpiece adopts an auricle design. Unlike an in-ear earpiece that directly compresses the acoustic meatus, it hangs on the ear.
In addition, we know the ears are sensitive parts of the body. The earpiece is designed with ultra-soft silicone and elastic and is a perfect fit for ear protection.
Finally, the earpiece socket supports 180-degree rotation. You can adjust and switch to any ear. The perfect balance happens between work and rest for either ear.
Besides traditional CPS(customer programming software) or APP, can it quickly communicate between terminals without any tool? Moreover, radio is often purchased in batches at different times, resulting in multiple brands and models; you may have already lost previous radio frequency settings. So, how could S series quickly communicate with them in this situation?
Hytera S1 mini and S1 support the channel copy technology for quick communication with other analog radios. S series terminal could analyze and copy frequency information from any analog radio. You only need to press the PTT button for seconds. Then, two different radios will be at the same frequency, the same CTCSS/CDCSS.