Dwyer Ground & continuity controls Type
We offer over 8000+ total Dwyer products, including accessories, air velocity transmitters, bin vibrators, CO2/Temp (Duct) sensors, and more. Shop now!
View Details
![Dwyer TR-7-U Ground continuity control with 36" cable | stud type contactor | 220V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/tr_7_1000x1000_8e010ce0-4b37-466c-a6de-9aa92ea501f4_medium.jpg?v=1688844742)
TR-7-U | Ground continuity control with 36" cable | stud type contactor | 220V | Dwyer
Brand: Dwyer
SKU: TR-7-U
View Details
![Dwyer TR-7-ABX Ground continuity control with 72" cable | battery type contactor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/tr_7_1000x1000_219c0015-6afc-47a7-9602-b7535f099651_medium.jpg?v=1688843759)
TR-7-ABX | Ground continuity control with 72" cable | battery type contactor | Dwyer
Brand: Dwyer
SKU: TR-7-ABX
View Details
![Dwyer TR-7-UB Ground continuity control with 36" cable | battery type contactor | 220V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/tr_7_1000x1000_f508d4d4-0e4b-4414-ba2f-ccef7c739a16_medium.jpg?v=1688844417)
TR-7-UB | Ground continuity control with 36" cable | battery type contactor | 220V | Dwyer
Brand: Dwyer
SKU: TR-7-UB
View Details
![Dwyer TR-7-UX Ground continuity control with 72" cable | stud type contactor | 220V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/tr_7_1000x1000_8abcc8f2-4a05-4f9f-ae65-f329914e6adf_medium.jpg?v=1688845622)
TR-7-UX | Ground continuity control with 72" cable | stud type contactor | 220V | Dwyer
Brand: Dwyer
SKU: TR-7-UX
View Details
![Dwyer TR-7-AX Ground continuity control with 72" cable | stud type contactor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/tr_7_1000x1000_a0fa1c8f-e53a-452a-b8d4-e56504571dbf_medium.jpg?v=1688845600)
TR-7-AX | Ground continuity control with 72" cable | stud type contactor | Dwyer
Brand: Dwyer
SKU: TR-7-AX
View Details
![Dwyer TR-7-AB Ground continuity control with 36" cable | battery type contactor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/tr_7_1000x1000_bbef3e26-d45c-4555-9115-c28f1f11e91f_medium.jpg?v=1688846045)
TR-7-AB | Ground continuity control with 36" cable | battery type contactor | Dwyer
Brand: Dwyer
SKU: TR-7-AB
View Details
![Dwyer TR-7-A Ground continuity control with 36" cable and stud contactor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/tr_7_1000x1000_3dab7af1-ca41-4fd9-bf64-82b319f506c7_medium.jpg?v=1688846991)
TR-7-A | Ground continuity control with 36" cable and stud contactor | Dwyer
Brand: Dwyer
SKU: TR-7-A
View Details
![Dwyer TR-7-UXB Ground continuity control with 72" cable | battery type contactor | 220V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/tr_7_1000x1000_17b60744-f7b8-43e1-ac45-6444bfb16ea5_medium.jpg?v=1688846919)
TR-7-UXB | Ground continuity control with 72" cable | battery type contactor | 220V | Dwyer
Brand: Dwyer
SKU: TR-7-UXB
View Details
![Dwyer TR-7-X Ground continuity control with 72" cable | stud type contactor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/tr_7_1000x1000_bdcfdfff-1d60-49e3-88e0-cb2bf8fda7f8_medium.jpg?v=1688846260)
TR-7-X | Ground continuity control with 72" cable | stud type contactor | Dwyer
Brand: Dwyer
SKU: TR-7-X
View Details
![Dwyer TR-7 Ground continuity control with 36" cable | stud connector | 120V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/tr_7_1000x1000_46780757-8139-47b3-9963-7a624c72acc1_medium.jpg?v=1688845104)
TR-7 | Ground continuity control with 36" cable | stud connector | 120V | Dwyer
Brand: Dwyer
SKU: TR-7
Committed to customer satisfaction
as experts in Dwyer
Recently Viewed
Popular Products
View all →![Veris H971 Current Sensor | DC | Split | 0-200A | Pulse Reset | Bi-Directional | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/H971_2713e501-214a-425b-84fa-558ce4a2feb2_large.jpg?v=1717708350)
H971 | Current Sensor | DC | Split | 0-200A | Pulse Reset | Bi-Directional | Veris
Brand: Veris
SKU: H971![Veris PX3DLX02 Pressure | Dry | Duct | LCD | 0-10 In WC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/PX3DLX02_34751ed9-b55b-4ab8-ae9e-64778f94a267_large.jpg?v=1706643270)
PX3DLX02 | Pressure | Dry | Duct | LCD | 0-10 In WC | Veris
Brand: Veris
SKU: PX3DLX02![Siemens SAS61.33U MT Series SAS Electronic Valve Act, SR, 24V, 0-10V / 4-20 mA Proport Control | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/SAS61.33U_large.jpg?v=1716574569)
SAS61.33U | MT Series SAS Electronic Valve Act, SR, 24V, 0-10V / 4-20 mA Proport Control | Siemens
Brand: Siemens
SKU: SAS61.33U![Veris PW2LX05S Pressure | Wet | NEMA 4 | LCD | 0-250PSID | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/PW2LX05S_88a65725-d5a4-465e-9c6c-d45a476764ac_large.jpg?v=1719241876)
PW2LX05S | Pressure | Wet | NEMA 4 | LCD | 0-250PSID | Veris
Brand: Veris
SKU: PW2LX05S![Siemens RDY2000BN BACnet Commercial Thermostat | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/RDY2000BN_large.jpg?v=1716932364)
RDY2000BN | BACnet Commercial Thermostat | Siemens
Brand: Siemens
SKU: RDY2000BN![Viconics R820-643-REV2 SCR Power controller 600 V, 45 A, 3 phase | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/r820_2357d62a-de99-4eaf-b251-fe45a7caace2_large.jpg?v=1719241874)
R820-643-REV2 | SCR Power controller 600 V, 45 A, 3 phase | Viconics
Brand: Viconics
SKU: R820-643-REV2![iO HVAC Controls iO-WR-XR Extended Range wireless relay kit | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/iO_WR_XR_web_b1a67703-1116-4d67-b510-b2685656413f_large.png?v=1709052496)
iO-WR-XR | Extended Range wireless relay kit | iO HVAC Controls (OBSOLETE)
Brand: iO HVAC Controls
SKU: iO-WR-XR