Grace Technologies is a leading innovator of electrical safety products and predictive maintenance solutions that enable businesses to improve productivity while fostering a safety culture that exceeds OSHA, NFPA 70E, and CSA Z462 regulations. GracePESDs® are voltage indicators, voltage portals, and voltage portal/voltage indicator combination systems. GracePort® is a fully customized communication connector that allows for through-the-door programming and system updates.

Our strong sales channel and established international customer base will provide abundant opportunities with a foundation of growth for years to come with the recent addition of the GraceSenseTM Predictive Maintenance System for continuous monitoring of critical assets utilizing IIoT and cloud-based technology.

Grace Technologies received the Better Business Bureau Torch Award for Ethics, and our Founder and Chairman is a recipient of the award.



GracePorts@ are Panel Interface Connectors, also known as Programming, that typically mount to the exterior Of an Industrial Control, they provide safe access to PLCs or other devices through closed doors.

Our Graceport+ is a UL Listed large enclosure that protects Human Machine Interface (HMIS) and other valuable electrical components.

Thru-door access enabled by GracePort Panel Interface Connectors and GracePort+ HMI covers enhance compliance to OSHA, NEC a NPFA 70e,'CSA Z462.

Click on download Datasheet of Graceport

2. GracePESDs

Grace's Permanent Electrical Safety Devices (PESDs) work to confront common Lockout/Tagout (LOTO) procedural and implementation issues, such as user error. When properly incorporated into a facility's LOTO procedure, PESDs inherently reduce risk by providing a safer and more productive method of verifying energy isolation.

These redundant LED voltage indicators, high impedance protected portals, and combination units are hardwired to voltage sources enabling personnel to validate electrical energy presence or absence without ever coming into contact with hazardous energy. The addition of PESDs to your facility's maintenance program will take you beyond the minimum compliance with NFPA 70E & OSHA energy isolation principles.

2.1 Safe-Test Point

A Safe-Test Point can be mounted on the side of an enclosure, door, or flange and provides four test point jacks to allow measurement of AC/DC voltages either phase to phase or phase to ground. By inserting insulated meter probes with .080” tips into any two test point jacks, you can take a voltage reading with your properly rated test equipment. Installation of a Safe-Test Points allows qualified personnel to perform the absence of voltage tests from outside an electrical cabinet. By following proper safety procedures, the risks of an arc flash or shock hazard are significantly reduced.

Click on download Datasheet of Safe-Test Point

2.2 Voltage Test Station

The Voltage Test Station (VTS) combines our Safe-Test Point with a voltage indicator conveniently placed within a protective housing. The VTS test point jacks allow measurement of AC/DC voltages either phase to phase or phase to ground. The R-3W Series voltage indicators with either flashing or non-flashing LEDs visually represent the presence of voltage. Following facility safety procedures, insert the insulated meter probes with .080” tips into any two test point jacks to take a voltage reading with properly rated test equipment.

Click on download Datasheet of Voltage Test Station

2.3 Voltage Indicator PESDs

Voltage Indicator PESDs are self-powered, UL listed, and permanently installed devices that visually represent the presence of voltage with flashing or non-flashing, redundant LED lights. Typically hardwired to the load side of an electrical feeder or a disconnect switch, voltage indicators illuminate whenever hazardous voltage is present in any individual phase.

Voltage indicators greatly assist task qualified personnel with enhanced productivity and reduced risk while performing mechanical LOTO tasks by verifying energy presence.

Click on download Datasheet of Voltage Indicator PESDs

2.4 Medium Voltage Indicator PESD

The Medium Voltage Indicator (R-1V) mounts to a medium voltage bus and alerts personnel to voltage presence with flashing LEDs. This PESD is designed to provide sufficient illumination to be easily seen through a regular or IR viewing window mounted on a medium voltage starter, transformer, switchgear, or other power distribution equipment.

The R-1V is built for long life and reliability with solid-state LEDs and is coated with flame-rated material. The Medium Voltage Indicator also uses capacitively-coupled resistivity to provide high surge immunity.

Click on download Datasheet of Medium Voltage Indicator PESD

2.5 Voltage Portal PESDs

Voltage Portal PESDs allows task qualified maintenance workers to safely and productively perform voltage verification from outside a grounded electrical enclosure. A voltage portal is typically connected to the load side of the electrical disconnect by a qualified electrician. Installed on the door or flange of an electrical cabinet using a 1/2” or 30mm standard punch hole with site-specific procedure labels, workers can perform a voltage test using an adequately rated CAT III/CAT IV Non-Contact Voltage detector (NCVD) Pen during mechanical Lockout/Tagout.

Click on download Datasheet of Voltage Portal PESDs

2.6 Combination Unit PESDs

Door mount kits are available for the R-3W Voltage Indicator to provide addition cable lengths. Each are sold separately and include 3’, 4’, & 6’ cables. A conduit vertical mount accessory is available for the R-3W. The flexible mounting provided by the vertical conduit allows for it to be installed and seen properly on equipment. The R-3W Voltage Indicator is sold separately.

Labels such as the R-3W Voltage Indicator optional accessory can be sold separately. Label options add a warning label around indicators describing the danger of present energy.

Click on download Datasheet of Combination Unit PESDs

2.7 PESD Accessories

Bulletin 2711P PanelView™ Plus 7 Graphic Terminals are available in standard and performance versions and offer display sizes from 4...19 in. with widescreen options. You can use FactoryTalk® View Machine Edition to build your application and help simplify configuration and strengthen your Integrated Architecture solution. These terminals include Ethernet connectivity and enable you to monitor applications from remote locations with VNC connectivity.

Click on download Datasheet of PESD Accessories

3. GraceSense


Our suite of smart devices provides advanced analytics with deep insights about machine health to prevent unplanned downtime. Wireless condition monitoring solution capable of providing real-time, sensor-based insights to almost any industrial application. Advanced analytics provide asset managers with deep insights to machine health to effectively prioritize resources and maintenance spend. Improve overall plant reliability, safety, and maintenance metrics by remotely monitoring asset health.

Click on download Datasheet of GraceSense


Wireless sensor nodes that monitor vibration and temperature to insightfully assess the health of rotating equipment. Using advanced edge processing and IEEE 802.15.4 ZigBee compatible communication, these nodes enable plant floor personnel to continuously monitor equipment, detect defects, and predict health on any rotating equipment.


Configurable hardware architecture with a wide selection of inputs, transducers, radios and power options mounted in our IP65 environmentally rated housings.Cost-effective solution to bring in hardwired third-party sensors via 0-10V, 4-20mV, as well as serial communication over RS485.




GraceSense™ gateways transfer accumulated field node information to an actionable troubleshooting platform via our Maintenance Hub Cloud and/or your PLC, SCADA, DCS system. The CloudGate™ transfers field node information to the browser-based Maintenance Hub were actionable, real-time insights are provided. We offer WiFi or LTE configuration that can provide cloud-based support to all GraceSense™ wireless nodes within a 30m radius. The ControlGate™ is the gateway into plant floor control systems. This gateway configuration provides users quick integration into their control networks via PLC/SCADA and EtherNet/IP™ or Modbus TCP/IP. The ComboGate™ is a hybrid configuration that provides data to both PLC/SCADA/DCS systems using EtherNet/IP or Modbus TCP/IP and communication options to the Maintenance Hub via LTE or WiFi.





The GraceSense™ Hot Spot Monitor (HSM) is a continuous, non-conductive temperature monitoring device that detects potential hot spots and alerts personnel of abnormalities in electrical equipment.

Continuously monitor temperature in critical equipment real-time, for inaccessible locations with the doors closed. Providing maximum safety and protection for personnel and identify equipment failures before they occur to avoid unplanned downtime and equipment failures.

Integrate the Hot Spot Monitor with a panel-mount node to remotely monitor in the browser-based Maintenance Hub or via MODBUS TCP/IP or EtherNet IP into your existing SCADA system.



Intuitive browser-based interface that provides real-time asset statuses using dashboards, plot trends and analytics that provide system information, reports and issue alerts.

Hosted either in the cloud or on a local server, the Maintenance Hub displays system information, generates reports, and issues alerts via SMS and email containing actionable step-by-step remediation instructions.




Our expert technicians are here to help ensure a successful transition into our Predictive Maintenance solutions.

We provide Cloud-based monitoring, installation oversight with setup assistance, routine node maintenance and personnel training.

We have a range of options including on-site, remote or a combination of services to ensure confidence knowing that the system is properly setup, monitored and maintained to provide actionable information.