Wireless Single-Input Transmitter DS-PM1-I1-WE for Hikvision AX-PRO — 868 MHz, Battery Powered

Introduction: What the Hikvision DS-PM1-I1-WE Does

The Hikvision DS-PM1-I1-WE is a compact wireless single-input transmitter designed to bring a conventional wired detector into the AX-PRO wireless alarm ecosystem. Small enough to be installed inside many "wireless ready" detectors, this module translates a single alarm input and a tamper contact into an AX-PRO wireless zone. Running on three CR123 batteries and operating on the 868 MHz band with two-way RF and secure communications, the DS-PM1-I1-WE targets installers and end users who need a tidy retrofit solution without running new cabling.

Key Features at a Glance

• Compact inside-detector fit:Designed to be mounted inside many standard wired detectors, preserving aesthetics and minimizing installation work.
• Single alarm input + tamper:Converts one wired alarm circuit and the detector tamper into a wireless zone for AX-PRO.
• PGM output and 3.3 V supply:Offers one programmable output (PGM/AM) and a low-current 3.3 V power rail (up to 10 mA) for powering small sensors.
• Long battery life:Uses 3 × CR123 cells with quoted standby life of more than five years under a typical reporting profile.
• Robust RF:868 MHz two-way RF using 2GFSK modulation and AES-style secure communications, with a factory line-of-sight range of about 1,700 m.
• Tamper and indicators:Accelerometer-based tamper detection plus status LEDs for alarm/tamper, fault and signal strength.

Detailed Specifications and Practical Benefits

Understanding the DS-PM1-I1-WE means looking at both technical specifications and how they translate into day-to-day benefits on installations.

The unit is powered by three CR123 cells (each about 3 V). Hikvision quotes a quiescent current around 40.29 µA and a maximum current in alarm conditions about 47.85 mA. Under a typical reporting pattern—specified as up to 50 alarm reports per day—standby life is listed at more than five years.

Benefit: For many residential and commercial systems this means long maintenance intervals and lower ongoing running costs compared with frequently serviced wireless modules. CR123 batteries are commonly available and straightforward to replace, though installers should plan replacement reminders into service schedules.

The transmitter provides one alarm input and one tamper input, plus a PGM/AM output that can be used for simple signalling to the host and a 3.3 V supply (limited to about 10 mA) for low-current detectors or status circuits. There is also a serial port and a power switch, useful at installation for configuration and testing.

Benefit: The input/output set makes this module ideal for converting an existing single-zone wired detector into a properly enrolled wireless zone on AX-PRO, while preserving tamper protection. The limited 3.3 V current means it will suit low-power accessories rather than full active devices.

Operating on 868 MHz with two-way RF and 2GFSK modulation, the DS-PM1-I1-WE supports long-range communication up to approximately 1,700 m in open-area conditions. Hikvision specifies AES-style secure communications for the RF link.

Benefit: The combination of long-range RF and two-way communication improves reliability—modules can be polled and can report status changes—while stronger security reduces the risk of interception or spoofing compared with basic one-way 433 MHz devices.

Rated for operation between −10 °C and +55 °C with humidity tolerance of 10%–90% RH, the transmitter measures 102 × 41 × 20 mm and weighs about 35 g without batteries (90 g with batteries). LED indicators provide quick visual confirmation of alarm, fault and signal strength during setup and testing.

Benefit: The compact size and weight make it well suited for fitting inside many detector housings, while the environmental ratings cover most indoor installations in homes and commercial premises.

Use Cases and Ideal Scenarios

The DS-PM1-I1-WE is deliberately focused on retrofit, compactness and simplicity. Typical scenarios where it excels include:

• Retrofit of wired detectors:Upgrading a legacy wired detector to a modern AX-PRO wireless system without running new cables or replacing the detector body.
• Loft and cavity installations:Situations where running detection wiring into a control panel is impractical—attics, outbuildings or finished ceilings are common examples.
• Small commercial fit-outs:Shops, small offices or storage rooms that have existing wired detectors but require a wireless control backbone for flexibility and lower installation cost.
• Temporary or phased projects:Installations staged over time where a quick wireless integration keeps the system protected while permanent wiring is planned.

In each case, the product’s compact inside-detector fit and long battery life reduce disturbance to building finishes and minimize service visits.

Comparisons With Similar Products

When evaluating the DS-PM1-I1-WE against other wireless input converters, it helps to consider a few axes: form factor, RF band and security, battery life, and I/O capability.

• Form factor:Some wireless transmitters are larger external enclosures designed to be surface mounted; the DS-PM1-I1-WE is intentionally small to fit inside compatible detectors, which is a strong advantage where concealment and neatness matter.
• RF band and range:The 868 MHz band with two-way communication generally offers better range and interference resistance than many 433 MHz one-way modules. If long-range or robust two-way supervision is important, the DS-PM1-I1-WE compares favorably.
• I/O capability:Multi-input transmitters provide several zones from a single unit but are larger and consume more power. For single-zone retrofits the DS-PM1-I1-WE’s single input plus tamper keeps things simple and energy efficient.
• Power constraints:Some alternatives provide higher auxiliary power outputs for active devices; the 3.3 V/10 mA rail here is limited to low-current accessories. Where full detector powering is needed, a different module or an external supply would be required.

Ultimately, the DS-PM1-I1-WE sits in the category of compact, secure, low-power single-input converters—best chosen when inside-detector installation, long battery life and AX-PRO integration are priorities.

Customer Feedback and Installer Notes

Official online customer testimonials specific to this exact model may not be widely published. However, feedback commonly reported by professional installers and systems integrators for similar inside-fit AX-PRO transmitters highlights several consistent points:

• Positive:Installers value the compact size, which reduces site modification and speeds up retrofits. Long battery life and straightforward enrolment into AX-PRO are also frequently praised.
• Considerations:Because the 3.3 V output is limited to about 10 mA, teams must confirm the detector being retrofitted is compatible and does not rely on higher auxiliary currents. Installers also emphasize checking mechanical fit and tamper settings before final closure.
• Advice:Professionals recommend following the official Hikvision datasheet and manual for enrolment, wiring and placement, and performing RF range tests on site to confirm reliable communication to the AX-PRO hub.

If you need verified user reviews, ask your dealer for reference installations or seek feedback from local installers who have used AX-PRO components in comparable projects.

Limitations and Practical Notes

While the DS-PM1-I1-WE is strong in its niche, there are some pragmatic limits to be aware of:

• The transmitter supports only a single alarm input, which makes it unsuitable where multiple zones must be converted with a single device.
• The 3.3 V supply is limited to low-current devices (about 10 mA); many legacy detectors will not draw significant power, but active modules or powered detectors may need separate supply considerations.
• Battery type is CR123—readily available but replacing batteries in ceiling detectors may still require a site visit and a safe access plan.
• Check local regulatory compliance and product markings (CE / UKCA) if these are required for your region or installation type. The official datasheet and manual should be consulted before installation.

Conclusion: Why Choose the DS-PM1-I1-WE?

The Hikvision DS-PM1-I1-WE is an efficient, purpose-built solution for converting a single wired detector into an AX-PRO wireless zone. Its compact inside-detector form factor, long quoted battery life, secure 868 MHz two-way RF, tamper detection and simple I/O make it particularly suitable for retrofit projects and installations where minimal disruption is important. While its single-input design and limited auxiliary current mean it is not a one-size-fits-all converter, for the right use cases—residential retrofits, small commercial sites, and phased deployments—it represents a practical, low-maintenance option that integrates cleanly into the AX-PRO ecosystem.

Always verify mechanical fit, detector power compatibility and perform on-site RF testing prior to completing an installation. Consult Hikvision’s official datasheet and installation guide for full technical details, wiring diagrams and handling instructions before proceeding.