About Us

Watchfuleye is specializing in a complete range of lightning and surge protective devices, with wide applications in low voltage DC & AC power supply system, data and control system, and new energy industry like solar and wind power system, etc. Our company also offers reliable custom technical solutions in lightning & surge protection for global customers.
Headquater in New York, Watchfuleye has a network of sales to serve the customers worldwide. With high quality products and optimal service, Watchful Eye can meet your strict technical standards and unique requirements.

What we can provide for you:
Surge protection devices for Low Voltage DC/AC power supply system
Surge protection devices for data and signal control system
Surge protection devices for photovoltaic system
Intelligent safety monitoring system
Residual Current Monitoring Detector for Electric Fire Prevention
Smoke Density Meter
Design and offer reliable surge protection solutions for your electrical systems and photovoltaic systems

Surge Arrester for Photovoltaic System

Surge Arrester for Photovoltaic
Standards compliance:
UL1449 3rd Edition (USA): Type4, Type2 Location
IEC61643-1 (Intl): Class II
Location of use: Branch sub-distribution boards
Protection modes: (+/-)-PE
Protective element: MOV
Housing: Modular design
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Surge Arresters for AC Power Supply System

Surge Arresters for AC Power Supply



Location of use: Branch sub-distribution boards
Protection modes: L/N-PE,L-PE,L-N
Protective element: High Energy MOV
Housing: Modular design
In Accordance with: UL1449 3rd, IEC61643-1, CE, RoHS
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Surge Arresters for DC Power System

Surge Arresters for DC Power System



Location of use: Branch sub-distribution boards
Protection modes: (+/-)-PE
Protective element: MOV
Housing: Modular design
In Accordance with: UL1449 3rd, IEC61643-1, CE, RoHS
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Surge Arresters Box

Surge Arresters Box



Location of use: Independent Installation
Protection modes: L/N-PE,L-PE,L-N
Protective element: High Energy MOV
Housing: Box design
In Accordance with: UL1449 3rd, IEC61643-1, CE, RoHS
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Surge Arrester for Power over Ethernet (POE)

Surge Arrester for Power over Ethernet (POE)

Surge arrester for POE, in compliance with the standards of IEEE 802.3AF/IEEE 802.3AT and the standards for surge protection of IEC61643-21, applies to the POE equipments such as computer network, POE network monitoring cameras, Ethernet switches, wireless AP, routers as well as the traditional network equipments, with the adaptive capacity of the network transmission rate of 10M, 100M and 1000M, providing surge protection against the overvoltage on the network signal lines caused by surge and lightning strike.
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Surge Arrester for Network System

Surge Arrester for Network System



Surge Arrester for Network System
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Surge Arrester for Data & Control

Surge Arrester for Data & Control



Surge Arrester for Data & Control
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Portable Surge Protective Device Tester

Portable Surge Protective Device Tester
1. Portable and convenient use with batteries, rechargeable batteries or external power supply
2. Easy, rapid and accurate measurement by pressing one button for testing
3. Applied to testing both MOV type and GDT type SPDs
4. Accurate break-over voltage test under the constant current 1mA
5. Accurate leakage current test under the constant voltage of 75% of the break-over voltage
6. The voltage of the tester can be boosted up to 1000V DC
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Intelligent Monitoring Detector

Intelligent Monitoring Detector Main features:
1.Real-time monitoring of the operational status of Surge Protective Devices(SPDs)
2. Real-time monitoring of lightning and surge
3. Real-time monitoring of the local system voltages
4. Networking functions
5. Cloud Storage
6. Unattended operation
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Residual Current Monitoring Detector for Electric Fire Prevention

Residual Current Monitoring Detector for Electric Fire Prevention






Residual Current Monitoring Detector for Electric Fire Prevention
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Smoke Density Meter

Smoke Density Meter
Industrial Application
Functions & Features
Detect And Monitor Smoke Density
Monitoring continuously in percent (%)
Exceeding Level Alarm
Sensor Is Unaffected By Weather
Aid To Efficiency of Combustion
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Cloud Service

Cloud Service
1. Networking functions
2. Cloud Storage
3. Unattended operation
4. Regular inspection
5. Alarm transmission
6. Internet of things
7. Cloud servers and online hosting
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