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Merrytek Dry Contact Series Sensors – Flexible Integration into All Smart Systems!

2026-05-15      Author:Mradmin

Merrytek Dry Contact Series Sensors support PIR infrared motion detection or microwave radar presence detection, meeting diverse application needs. With a unified interface and stable signal output,can be flexibly integrated into smart control systems for offices, hotels, warehouses, and various other scenarios.

 

 

Advantages of Dry Contact Series Sensors

 

—Non-polarity design for flexible wiring and improved installation efficiency.

—High security,suitable for industrial and safety applications with strict reliability requirements.

—Strong compatibility: the dry contact interface is more stable and reduces the risk of device damage from incorrect wiring.

 

Microwave Radar Presence Detection – Representative Models

 

MSA237D 99

—Drill hole:Φ50-55mm,Flush mounting

—Input:12-24V DC

—4th generation Merrytek human presence sensor,available configure the parameters via Merrytek bluetooth program.

—24Ghz mmwave radar+daylight detect,FMCW technology for human presence detection.

—Mounting height 2.5-4m,max detection radius (motion/micro-motion/presence): 4m

 

 

MSA200D RC

—Drill hole:Φ45mm,Flush mounting and surface mounting available

—Input:12-24V DC

—24Ghz mmwave radar+daylight detect,FMCW technology for human presence detection.

—Mounting height 2.5-4m,max detection radius (motion/micro-motion/presence): 3-4m

—available configure the parameters via MH10 remote.

 

 

PIR Infrared motion Detection – Representative Models

 

MSA070D IR

—Drill hole:Φ35mm supper mini size,Flush mounting,uses a self-developed ultra-flat lens, it is hidden and aesthetically for installation

—Input:12-24V DC

—PIR infrared motion detect+daylight detect,accurately detects human movement and on-demand dimming

—Mounting height 2.5-4m,max motion detection radius : 6-7m

—available configure the parameters via MH10/MH18 remote.

 

 

MSA222D IR

—Ultra-slim body, surface ceiling mounting (no cutting required)

—Input:12-24V DC

—PIR infrared motion detect+daylight detect,accurately detects human movement and on-demand dimming

—Mounting height 2.5-4m,max motion detection radius : 2.5-4m

—available configure the parameters via MH10 remote.

 

 

MSA050D IR

—Drill hole:Φ55mm, 3-in-1 installation: flush mounting / surface mounting / EU 86mm box mounting

—Input:12-24V DC

—PIR infrared motion detect+daylight detect,accurately detects human movement and on-demand dimming

—Max mounting height 10m,max motion detection radius : 4-5m

—available configure the parameters via MH10 remote.

—Protection class up to IP54 when surface-mounted with casing

 

 

MSA015D IR

—Drill hole:Φ65-70mm,Flush mounting

—Input:12-24V DC

—PIR infrared motion detect+daylight detect,accurately detects human movement and on-demand dimming

—Max mounting height 10m,max motion detection radius : 4-5m

—available configure the parameters via MH10 remote.

Merrytek Dry Contact Series Sensors offer both infrared and radar detection options, suitable for lowmount, highmount, and various installation scenarios. They can be smoothly integrated into existing smart control systems with low cost and high stability,Cost-effective choice for smart renovation projects.