Senva

If you've spent any time working with building automation or HVAC systems, you know that accurate data is everything. That's where Senva comes in. Known across the industry for engineering high-quality sensing and monitoring solutions, Senva gives technicians and facility managers the tools they need to keep environments comfortable, efficient, and safe. At DM Supply Source, we carry one of the largest selections of Senva products you'll find anywhere online, with over 1,350 parts and counting.

Find the Senva part you’re looking for here in our inventory, or give us a call if you need some guidance.

What Does Senva Bring to the Table?

Senva has carved out a strong position in the controls market by focusing on what matters most: precise measurement, rugged construction, and easy integration. Their products are engineered in the U.S. and built to perform in commercial, institutional, and industrial settings where there's no room for guesswork.

Here's a look at the core product categories we stock:

  • Senva temperature sensors: From duct and pipe-mount configurations to immersion and outdoor models, these sensors provide the accurate readings your control system needs to maintain optimal conditions.

  • Senva humidity sensors: Critical for applications where moisture levels impact comfort, equipment performance, or product integrity. Senva offers both duct-mount and room-mount options to cover a variety of environments.

  • Senva indoor air sensors: Designed to monitor CO2, VOCs, and other air quality indicators, these units play an important role in maintaining healthy indoor environments and meeting ventilation standards.

  • Senva pressure transmitters: Whether you're monitoring static pressure in ductwork or differential pressure across filters, Senva's transmitters deliver consistent, dependable readings that your BAS can act on.

  • Senva relay modules: Purpose-built for current sensing and equipment status monitoring, these compact modules make it easy to verify fan operation, pump status, and other critical system functions.

Why Contractors and Facility Teams Choose Senva

What sets Senva apart from the crowd is how thoughtfully their products are designed for the people who actually install and maintain them. Wiring is straightforward, mounting options are flexible, and their output compatibility works with virtually every major building automation platform on the market. That means less time troubleshooting on the ladder and more time moving on to the next job.

Shop Senva at DM Supply Source

As an authorized stocking distributor, we keep Senva sensors and controls on our shelves and ready to ship from multiple warehouse locations across the country. Need something tomorrow? We'll do everything we can to make that happen.

Our team has deep knowledge of Senva's product line, so if you're trying to match a spec, find a cross-reference, or figure out which sensor fits your application, we're just a phone call or text away.

Browse our full Senva inventory, or contact our sales team for help finding exactly what you need at a competitive price.

1160 of 1352 Items
  • TGW-AMX-A

    Senva

    TGW-AMX-A

    Senva TGW-AMX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $461.74
    cartAdd to Cart
  • TGW-AHX-A

    Senva

    TGW-AHX-A

    Senva TGW-AHX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $461.74
    cartAdd to Cart
  • TGW-ACP-A

    Senva

    TGW-ACP-A

    Senva TGW-ACP-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $554.09
    cartAdd to Cart
  • TGW-ACO-A

    Senva

    TGW-ACO-A

    Senva TGW-ACO-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $554.09
    cartAdd to Cart
  • TGW-ACM-A

    Senva

    TGW-ACM-A

    Senva TGW-ACM-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $554.09
    cartAdd to Cart
  • TGS-O2-UL

    Senva

    TGS-O2-UL

    Senva TGS-O2-UL Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $169.31
    cartAdd to Cart
  • TGS-CH4-UL

    Senva

    TGS-CH4-UL

    Senva TGS-CH4-UL Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $169.31
    cartAdd to Cart
  • TGM-BSX-A

    Senva

    TGM-BSX-A

    Senva TGM-BSX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $923.49
    cartAdd to Cart
  • TGM-BPX-A

    Senva

    TGM-BPX-A

    Senva TGM-BPX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $646.44
    cartAdd to Cart
  • TGM-BOX-A

    Senva

    TGM-BOX-A

    Senva TGM-BOX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $646.44
    cartAdd to Cart
  • TGM-BMX-A

    Senva

    TGM-BMX-A

    Senva TGM-BMX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $646.44
    cartAdd to Cart
  • TGM-BHX-A

    Senva

    TGM-BHX-A

    Senva TGM-BHX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $646.44
    cartAdd to Cart
  • TGM-BCP-A

    Senva

    TGM-BCP-A

    Senva TGM-BCP-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $738.79
    cartAdd to Cart
  • TGM-BCO-F

    Senva

    TGM-BCO-F

    Senva TGM-BCO-F Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $748.02
    cartAdd to Cart
  • TGM-BCM-A

    Senva

    TGM-BCM-A

    Senva TGM-BCM-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $738.79
    cartAdd to Cart
  • TGM-ASX-A

    Senva

    TGM-ASX-A

    Senva TGM-ASX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $831.13
    cartAdd to Cart
  • TGM-APX-A

    Senva

    TGM-APX-A

    Senva TGM-APX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $554.09
    cartAdd to Cart
  • TGM-AOX-A

    Senva

    TGM-AOX-A

    Senva TGM-AOX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $554.09
    cartAdd to Cart
  • TGM-AMX-AS

    Senva

    TGM-AMX-AS

    Senva TGM-AMX-AS Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $554.09
    cartAdd to Cart
  • TGM-AMX-A

    Senva

    TGM-AMX-A

    Senva TGM-AMX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $554.09
    cartAdd to Cart
  • TGM-AHX-A

    Senva

    TGM-AHX-A

    Senva TGM-AHX-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $554.09
    cartAdd to Cart
  • TGM-ACP-A

    Senva

    TGM-ACP-A

    Senva TGM-ACP-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $646.44
    cartAdd to Cart
  • TGM-ACM-A

    Senva

    TGM-ACM-A

    Senva TGM-ACM-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $646.44
    cartAdd to Cart
  • TGD-ACM-A

    Senva

    TGD-ACM-A

    Senva TGD-ACM-A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Senva TG Series sensors can be ordered as individual...

    $554.09
    cartAdd to Cart
  • TG0R-CD

    Senva

    TG0R-CD

    Senva TG0R-CD Relay is a Senva sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Designed to maximize safety in work and school environments, the...

    $325.42
    cartAdd to Cart
  • TG0R-CC

    Senva

    TG0R-CC

    Senva TG0R-CC Relay is a Senva sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Designed to maximize safety in work and school environments, the...

    $325.42
    cartAdd to Cart
  • TG0R-CB

    Senva

    TG0R-CB

    Senva TG0R-CB Relay is a Senva sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Designed to maximize safety in work and school environments, the...

    $325.42
    cartAdd to Cart
  • TG0R-CA

    Senva

    TG0R-CA

    Senva TG0R-CA Relay is a Senva sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Designed to maximize safety in work and school environments, the...

    $325.42
    cartAdd to Cart
  • TG0R-4D

    Senva

    TG0R-4D

    Senva TG0R-4D Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Designed for your VRF systems--ideal for hotel rooms and...

    $325.42
    cartAdd to Cart
  • TG0R-4B

    Senva

    TG0R-4B

    Senva TG0R-4B Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Designed for your VRF systems--ideal for hotel rooms and...

    $325.42
    cartAdd to Cart
  • TG0R-4A

    Senva

    TG0R-4A

    Senva TG0R-4A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Designed for your VRF systems--ideal for hotel rooms and...

    $325.42
    cartAdd to Cart
  • TG0R-3D

    Senva

    TG0R-3D

    Senva TG0R-3D Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Designed for your VRF systems--ideal for hotel rooms and...

    $325.42
    cartAdd to Cart
  • TG0R-3B

    Senva

    TG0R-3B

    Senva TG0R-3B Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Designed for your VRF systems--ideal for hotel rooms and...

    $325.42
    cartAdd to Cart
  • TG0R-3A

    Senva

    TG0R-3A

    Senva TG0R-3A Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Designed for your VRF systems--ideal for hotel rooms and...

    $325.42
    cartAdd to Cart
  • CALKITHW-R

    Senva

    CALKITHW-R

    Senva CALKITHW-R Relay is a Senva current sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview Designed for your VRF systems--ideal for hotel rooms...

    $1,168.90
    cartAdd to Cart
  • T0R-JAA

    Senva

    T0R-JAA

    Senva T0R-JAA Temperature Sensor is a Senva temperature sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview The T0R series is designed for use in...

  • T0R-GBC

    Senva

    T0R-GBC

    Senva T0R-GBC Temperature Sensor is a Senva temperature sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview The T0R series is designed for use in...

  • T0R-EBC

    Senva

    T0R-EBC

    Senva T0R-EBC Temperature Sensor is a Senva temperature sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview The T0R series is designed for use in...

  • T0R-EBA

    Senva

    T0R-EBA

    Senva T0R-EBA Temperature Sensor is a Senva temperature sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview The T0R series is designed for use in...

  • SS-R

    Senva

    SS-R

    Senva SS-R CO2 Sensor is a Senva co2 sensor available from DM Supply Source for commercial HVAC controls, building automation, monitoring, service, and replacement applications. Product Overview A combination of siren and strobe that can be connected to...

    $245.72
    cartAdd to Cart
1160 of 1352 Items