# Hikvision relay expander module DS-PM501R4 — 4 output relay module for AX Hybrid Pro bus

**URL:** https://aio.lv/en/product--hikvision-ds-pm501r4--11863621
**Data updated:** 2026-03-09 17:40 (EET)
**Category:** CCTV Accessories
**Manufacturer:** Hikvision
**Manufacturer code:** DS-PM501R4
**EAN:** 6942160496528
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 50.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 42.14 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hikvision-ds-pm501r4--11863621

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Relay expander module Hikvision DS-PM501R4 designed for AX Hybrid Pro access control bus systems. Provides four independent relay outputs for controlling locks, alarms, or auxiliary devices. Integrates with Hikvision access panels to extend I/O capacity, enabling convenient centralized control and automation of door release, signaling, and linked peripherals in commercial and residential installations.

## Long description

The Hikvision relay expander module DS-PM501R4 is a 4-output relay module designed for AX Hybrid Pro access control bus systems. It extends the I/O capacity of compatible Hikvision access panels, providing four independent relay outputs for controlling electric locks, alarms, door sensors, or other auxiliary devices. The module connects to the AX Hybrid Pro bus to allow centralized control and coordinated automation of door release, signaling and linked peripherals in commercial and residential installations.
Advantages
The module offers four independent relay channels in a compact housing, enabling expansion of access control functions without replacing the main panel. Integration with AX Hybrid Pro bus systems ensures synchronized operation with Hikvision access panels and simplifies wiring for multi-door or multi-device setups. The device supports straightforward installation and provides reliable mechanical relay outputs suitable for a range of locking and signaling devices.
Suitable for
 Expanding relay outputs for multi-door access control systems
 Controlling electric strikes, magnetic locks or door release mechanisms
 Triggering alarm sirens, strobes or external signaling devices
 Adding auxiliary outputs for building automation and security integrations
Key specifications
 Number of relay outputs: 4 independent channels
 Relay type: mechanical relay outputs suitable for switching locks and signaling devices
 Bus interface: compatible with AX Hybrid Pro access control bus
 Installation: DIN-rail or panel mounting options (device-specific mounting as per manufacturer instructions)
 Operating environment: indoor use in typical access control installations (refer to manufacturer for exact temperature and humidity ranges)
How to use
Install the relay expander module on the access control bus according to the AX Hybrid Pro wiring scheme and the manufacturer's installation guide. Connect each controlled device—such as an electric strike, magnetic lock or alarm—to the appropriate relay output, ensuring correct polarity and power supply ratings for the attached equipment. Configure the host Hikvision access panel or management software to recognize the expander and assign relay functions or automation rules for door release and alarms. Test each output in a controlled manner after wiring and configuration to confirm correct operation.
Usage recommendations
Use the relay expander with compatible Hikvision AX Hybrid Pro access panels and follow the manufacturer's wiring and safety recommendations. Verify that the switched devices do not exceed the relay contact ratings and provide separate power supplies for high-current locks if required. Regularly inspect connections and perform functional tests as part of routine system maintenance to ensure reliable access control operation.

## FAQ

### How much does the Hikvision DS-PM501R4 relay expander — 4 outputs cost, and is it available for purchase?

The price is 50.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Hikvision products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Hikvision service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11863621/67262257_large.webp