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The GF302D portable meter test equipment is used for grid corporation of measurement and energy test center, management department of power supply bureau, national energy measurement of testing authorities, and also used to test each kind of single/three phase kWh meter of industries and mining enterprises as well as electric meter manufacturers. Meanwhile, the meter test equipment also can be used as one high precision standard power source, voltage source and current source. Portable design, used in the laboratory or on site to auto check energy meter error. Specification Warranty: 3 years Power: Electronic Customized support: OBM Place of Origin: Beijing, China Brand Name: GFuve Model Number: GF302D Accuracy: 0.05%, 0.1% Power supply: One Phase AC 100-265V, frequency 50/60Hz. Voltage output Range(U1,U2,U3): 0-500V or 0-600V Current output Range(I1,I2,I3): 200mA, 1A, 5A, 20A, 100A; Max 120A Active power output stability: <0.01%RG/120s Reactive power output stability: <0.02%RG/120s Active power measuring accuracy: 0.05%RG Reactive power measuring accuracy: 0.1%RG Apparent power measuring accuracy: 0.05%RG Dimension: 500x600x175 mm Weight: 22 kg

Minimum Order: 1 bags

The GF302D1 three phase portable energy meter test equipment consists of an integrated three phase current source(up to 500V/120A or 500V/20A) and built-in three-phase electronic reference standard of accuracy class 0.05%. Characteristic features of the GF302D1 are its wide measuring range, high accuracy and high tolerance to unwanted external influences. The equipment offers high functionality combined with an excellent menu guided operation via built-in keyboards and colored 7" touch LCD-display. Voltage & current harmonics output from 2 to 63 times. This model portable meter test equipment can be programmable by PC, automatic generation of energy meter error test report. Specification Warranty: 3 years Power: Electronic Other attributes Customized support: OBM Place of Origin: Beijing, China Brand Name: GFuve Model Number: GF302D1 Accuracy: 0.05%, 0.1% Power supply: One Phase AC 100-265V, frequency 50/60Hz. AC voltage Output range(U1,U2,U3): 0-500V; 0-380V; 0-300V AC Current Output range(I1,I2,I3): 0-6A; 0-12A; 0-20A; 0-50A; 0-120A; Voltage adjustment range: (0-120)%RG Active power output stability: <0.01%RG/120s Reactive power output stability: <0.02%RG/120s Active power measuring accuracy: 0.05%RG Reactive power measuring accuracy: 0.1%RG Dimension: 495x390x195 mm Weight: 12.8 kg

Minimum Order: 1 bags

The instrument GF312D1 is a precision 0.05% AC energy meter testing instrument, mainly used to test three phase energy meter error on site, measure all various of AC parameters and CT ratio & phase error, it is also as three phase reference energy meter in the laboratory. Mainly using test single phase or three phase meter error on site. GF312D1 energy meter calibrator is an ideal test tool for the metrological service of electricity power company. Specification Warranty: 3 years Power: Electronic Other attributes Customized support: OEM, ODM, OBM, Software reengineering Place of Origin: Beijing, China Brand Name: GFuve Model Number: GF312D1 Accuracy: 0.05%, 0.1%, 0.2% Power supply: 220V; Li-polymer battery; Power line supply Test voltage range: 0-480V(0-830V) Test current range: 0-12A Active energy error: ±0.05% (0.1A-12A);±0.1% (0.01A-0.1A) Reactive energy error: ±0.1% (0.1A-12A) Active power error: ±0.05% (0.1A-12A);±0.1% (0.01A-0.1A) Reactive power error: ±0.1% (0.1A-12A) Dimension: 245x162x60 mm Weight: 1.6 kg

Minimum Order: 1 bags

GF312V2 portable three phase multifunction watt-hour meter calibrator on-site is the newest product produced by our company by widely visiting users and referring to the advantages of the same kind of products home and abroad. The measured part of the product adopts high speed A/D transmission to send DSP to conduct digital processing, which largely improves measured degree of accuracy and stability. Central processing part adopts 32-bit ARM embedded technology to make instrument interface novel, function abundant, operation distinct and easy, and performance steady. Class of accuracy: Class 0.02, 0.05 or 0.1, range from 12A/600V or 120A/600V, with comfort design, small size and light weight. The model GF312V2 watt-hour meter calibrator is suit for electric power departments, measuring and quality examining departments and electric lab to field use. Specification Warranty: 3 years Power: Electronic Customized support: OBM Place of Origin: Beijing, China Brand Name: GFuve Model Number: GF312V2 Accuracy: 0.02%, 0.05%, 0.1% Power supply: External power ;Phase voltage supply; Li-Battery supply Voltage range: 0-600V Voltage error: ±0.05%(1mA-30); ±0.02%(30-600V) Voltage stability: 0.01%/minute Current range: 1mA-12A or 1mA-120A Current Error (direct connection): ±0.05% or ±0.02% Current Ettor (Clamp CT): ±0.2% (1mA-120A ) ±0.5% (other) Stability: 0.01%/minute Harmonic analysis: 2nd - 63rd Dimension: 245x168x70 mm Weight: 1.8 kg

Minimum Order: 1 bags

Car GPS Tracker GPS303F with door alarm gps tracking app for Android & IOS Model:GPS303G This tracker is based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking in its entirety. Multiple Tracking Ways: *Track by SMS with latitude and longitude *Real track by SMS on PDA Cell phone with the maps link. *Tracking on with CD software on PC. *Web based online tracking on PC at our server www.Gpstrackerxy.COM. Functions: GPS drift suppression Absolute street address by SMS Location based service (LBS) Voice Monitor Data logging Charges Inquiry Alarm Function Low battery alarm External Power off alarm GPS blind Spot alert SOS Geo-fence Multi-are , a management Movement alarm Over speed alarm ACC working alarm Alarms under Arm State 1 ACC alarm 2.Shock Sensor alarm Alarm without GSM network service Check the Vehicle State Sleep Mode Scheduled wake-up Set up Terminal (local) Time TCP / UDP Switch Configure parameters by USB GPRS setting Less GPRS traffic Modes Switch between "SMS" and "GPRS" Set up monitor center number Cut off the Oil anad Power System Warranty 1. One year warranty is provided for all models. 2. All products have been strictly Quality Checked in house before packing. 3. All products have been well packed before shipping. OEM&ODM Service 1.Customize logo and brand print on the device or box 2.Offer firmware modification service 3.Customize design in bulk order Contact Details Shenzhen Coban Electronics Co., Ltd ( GPS Tracker Manufacturer)

Minimum Order: 100

GPS Car Tracker With Voice Monitoring SOS Button car GPS Tracker Coban GPS 303f Vehicle tracking system Model:GPS303G This tracker is based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking in its entirety. Multiple Tracking Ways: *Track by SMS with latitude and longitude *Real track by SMS on PDA Cell phone with the maps link. *Tracking on with CD software on PC. *Web based online tracking on PC at our server www.Gpstrackerxy.COM. Functions: GPS drift suppression Absolute street address by SMS Location based service (LBS) Voice Monitor Data logging Charges Inquiry Alarm Function Low battery alarm External Power off alarm GPS blind Spot alert SOS Geo-fence Multi-are , a management Movement alarm Over speed alarm ACC working alarm Alarms under Arm State 1 ACC alarm 2.Shock Sensor alarm Alarm without GSM network service Check the Vehicle State Sleep Mode Scheduled wake-up Set up Terminal (local) Time TCP / UDP Switch Configure parameters by USB GPRS setting Less GPRS traffic Modes Switch between "SMS" and "GPRS" Set up monitor center number Cut off the Oil anad Power System Warranty 1. One year warranty is provided for all models. 2. All products have been strictly Quality Checked in house before packing. 3. All products have been well packed before shipping. OEM&ODM Service 1.Customize logo and brand print on the device or box 2.Offer firmware modification service 3.Customize design in bulk order Contact Details Shenzhen Coban Electronics Co., Ltd ( GPS Tracker Manufacturer)

Minimum Order: 100

Coban GPS 303F Real-time gps tracking software platform with IOS Android APP support fuel monitor sensor GPS tracker GPS303G Model:GPS303G This tracker is based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking in its entirety. Multiple Tracking Ways: *Track by SMS with latitude and longitude *Real track by SMS on PDA Cell phone with the maps link. *Tracking on with CD software on PC. *Web based online tracking on PC at our server www.Gpstrackerxy.COM. Functions: GPS drift suppression Absolute street address by SMS Location based service (LBS) Voice Monitor Data logging Charges Inquiry Alarm Function Low battery alarm External Power off alarm GPS blind Spot alert SOS Geo-fence Multi-are , a management Movement alarm Over speed alarm ACC working alarm Alarms under Arm State 1 ACC alarm 2.Shock Sensor alarm Alarm without GSM network service Check the Vehicle State Sleep Mode Scheduled wake-up Set up Terminal (local) Time TCP / UDP Switch Configure parameters by USB GPRS setting Less GPRS traffic Modes Switch between "SMS" and "GPRS" Set up monitor center number Cut off the Oil anad Power System Warranty 1. One year warranty is provided for all models. 2. All products have been strictly Quality Checked in house before packing. 3. All products have been well packed before shipping. OEM&ODM Service 1.Customize logo and brand print on the device or box 2.Offer firmware modification service 3.Customize design in bulk order Contact Details Shenzhen Coban Electronics Co., Ltd ( GPS Tracker Manufacturer)

Minimum Order: 100

Car GPS tracker with relay GPS303F GPS303G vehicle gps tracking device gps tracking device tracker Model:GPS303G This tracker is based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking in its entirety. Multiple Tracking Ways: *Track by SMS with latitude and longitude *Real track by SMS on PDA Cell phone with the maps link. *Tracking on with CD software on PC. *Web based online tracking on PC at our server www.Gpstrackerxy.COM. Functions: GPS drift suppression Absolute street address by SMS Location based service (LBS) Voice Monitor Data logging Charges Inquiry Alarm Function Low battery alarm External Power off alarm GPS blind Spot alert SOS Geo-fence Multi-are , a management Movement alarm Over speed alarm ACC working alarm Alarms under Arm State 1 ACC alarm 2.Shock Sensor alarm Alarm without GSM network service Check the Vehicle State Sleep Mode Scheduled wake-up Set up Terminal (local) Time TCP / UDP Switch Configure parameters by USB GPRS setting Less GPRS traffic Modes Switch between "SMS" and "GPRS" Set up monitor center number Cut off the Oil anad Power System Warranty 1. One year warranty is provided for all models. 2. All products have been strictly Quality Checked in house before packing. 3. All products have been well packed before shipping. OEM&ODM Service 1.Customize logo and brand print on the device or box 2.Offer firmware modification service 3.Customize design in bulk order Contact Details Shenzhen Coban Electronics Co., Ltd ( GPS Tracker Manufacturer)

Minimum Order: 100

Car Motorcycle GPS Tracking Device With SIM Card real time mobile app platform GPS 303F Coban GPS tracker TK303F Model:GPS303G This tracker is based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking in its entirety. Multiple Tracking Ways: *Track by SMS with latitude and longitude *Real track by SMS on PDA Cell phone with the maps link. *Tracking on with CD software on PC. *Web based online tracking on PC at our server www.Gpstrackerxy.COM. Functions: GPS drift suppression Absolute street address by SMS Location based service (LBS) Voice Monitor Data logging Charges Inquiry Alarm Function Low battery alarm External Power off alarm GPS blind Spot alert SOS Geo-fence Multi-are , a management Movement alarm Over speed alarm ACC working alarm Alarms under Arm State 1 ACC alarm 2.Shock Sensor alarm Alarm without GSM network service Check the Vehicle State Sleep Mode Scheduled wake-up Set up Terminal (local) Time TCP / UDP Switch Configure parameters by USB GPRS setting Less GPRS traffic Modes Switch between "SMS" and "GPRS" Set up monitor center number Cut off the Oil anad Power System Warranty 1. One year warranty is provided for all models. 2. All products have been strictly Quality Checked in house before packing. 3. All products have been well packed before shipping. OEM&ODM Service 1.Customize logo and brand print on the device or box 2.Offer firmware modification service 3.Customize design in bulk order Contact Details Shenzhen Coban Electronics Co., Ltd ( GPS Tracker Manufacturer)

Minimum Order: 100

Automobile GPS Tracker 4G GPS403 with door alarm free APP gps tracking system Model:GPS403A/GPS403B < , ; , br>This tracker is based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking in its entirety. Multiple Tracking Ways: *Track by SMS with latitude and longitude *Real track by Cell phone with the maps link. *Tracking on with Mobile APP *Web based online tracking on PC at our server www.Gpstrackerxy.COM. Functions: GPS drift suppression Absolute street address by SMS Location based service (LBS) Voice Monitor Data logging Charges Inquiry Alarm Function Low battery alarm External Power off alarm GPS blind Spot alert SOS Geo-fence Multi-are , a management Movement alarm Over speed alarm ACC working alarm Alarms under Arm State 1 ACC alarm 2.Shock Sensor alarm Alarm without GSM network service Check the Vehicle State Sleep Mode Scheduled wake-up Set up Terminal (local) Time TCP / UDP Switch Configure parameters by USB GPRS setting Less GPRS traffic Modes Switch between "SMS" and "GPRS" Set up monitor center number Cut off the Oil anad Power System Warranty 1. One year warranty is provided for all models. 2. All products have been strictly Quality Checked in house before packing. 3. All products have been well packed before shipping. OEM&ODM Service 1.Customize logo and brand print on the device or box 2.Offer firmware modification service 3.Customize design in bulk order Contact Details Shenzhen Coban Electronics Co., Ltd ( GPS Tracker Manufacturer)

Minimum Order: 100

GPS Tracking system Truck Vehicle Gps Tracker GPS403A with fuel monitor Car GPS Tracker 4G Model:GPS403A/GPS403B < , ; , br>This tracker is based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking in its entirety. Multiple Tracking Ways: *Track by SMS with latitude and longitude *Real track by Cell phone with the maps link. *Tracking on with Mobile APP *Web based online tracking on PC at our server www.Gpstrackerxy.COM. Functions: GPS drift suppression Absolute street address by SMS Location based service (LBS) Voice Monitor Data logging Charges Inquiry Alarm Function Low battery alarm External Power off alarm GPS blind Spot alert SOS Geo-fence Multi-are , a management Movement alarm Over speed alarm ACC working alarm Alarms under Arm State 1 ACC alarm 2.Shock Sensor alarm Alarm without GSM network service Check the Vehicle State Sleep Mode Scheduled wake-up Set up Terminal (local) Time TCP / UDP Switch Configure parameters by USB GPRS setting Less GPRS traffic Modes Switch between "SMS" and "GPRS" Set up monitor center number Cut off the Oil anad Power System Warranty 1. One year warranty is provided for all models. 2. All products have been strictly Quality Checked in house before packing. 3. All products have been well packed before shipping. OEM&ODM Service 1.Customize logo and brand print on the device or box 2.Offer firmware modification service 3.Customize design in bulk order Contact Details Shenzhen Coban Electronics Co., Ltd ( GPS Tracker Manufacturer)

Minimum Order: 100

vehicle GPS tracking device real time app platform 4g GPS tracker GPS403A Model:GPS403A/GPS403B < , ; , br>This tracker is based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking in its entirety. Multiple Tracking Ways: *Track by SMS with latitude and longitude *Real track by Cell phone with the maps link. *Tracking on with Mobile APP *Web based online tracking on PC at our server www.Gpstrackerxy.COM. Functions: GPS drift suppression Absolute street address by SMS Location based service (LBS) Voice Monitor Data logging Charges Inquiry Alarm Function Low battery alarm External Power off alarm GPS blind Spot alert SOS Geo-fence Multi-are , a management Movement alarm Over speed alarm ACC working alarm Alarms under Arm State 1 ACC alarm 2.Shock Sensor alarm Alarm without GSM network service Check the Vehicle State Sleep Mode Scheduled wake-up Set up Terminal (local) Time TCP / UDP Switch Configure parameters by USB GPRS setting Less GPRS traffic Modes Switch between "SMS" and "GPRS" Set up monitor center number Cut off the Oil anad Power System Warranty 1. One year warranty is provided for all models. 2. All products have been strictly Quality Checked in house before packing. 3. All products have been well packed before shipping. OEM&ODM Service 1.Customize logo and brand print on the device or box 2.Offer firmware modification service 3.Customize design in bulk order Contact Details Shenzhen Coban Electronics Co., Ltd ( GPS Tracker Manufacturer)

Minimum Order: 100

Original Coban vehicle gps tracker for fleet management free software platform GPS403 4G Model:GPS403A/GPS403B < , ; , br>This tracker is based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking in its entirety. Multiple Tracking Ways: *Track by SMS with latitude and longitude *Real track by Cell phone with the maps link. *Tracking on with Mobile APP *Web based online tracking on PC at our server www.Gpstrackerxy.COM. Functions: GPS drift suppression Absolute street address by SMS Location based service (LBS) Voice Monitor Data logging Charges Inquiry Alarm Function Low battery alarm External Power off alarm GPS blind Spot alert SOS Geo-fence Multi-are , a management Movement alarm Over speed alarm ACC working alarm Alarms under Arm State 1 ACC alarm 2.Shock Sensor alarm Alarm without GSM network service Check the Vehicle State Sleep Mode Scheduled wake-up Set up Terminal (local) Time TCP / UDP Switch Configure parameters by USB GPRS setting Less GPRS traffic Modes Switch between "SMS" and "GPRS" Set up monitor center number Cut off the Oil anad Power System Warranty 1. One year warranty is provided for all models. 2. All products have been strictly Quality Checked in house before packing. 3. All products have been well packed before shipping. OEM&ODM Service 1.Customize logo and brand print on the device or box 2.Offer firmware modification service 3.Customize design in bulk order Contact Details Shenzhen Coban Electronics Co., Ltd ( GPS Tracker Manufacturer)

Minimum Order: 100

vehicle GPS tracking device real time app platform 4g GPS tracker GPS403A Model:GPS403A/GPS403B < , ; , br>This tracker is based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions of security, positioning, monitoring surveillance, emergency alarms and tracking in its entirety. Multiple Tracking Ways: *Track by SMS with latitude and longitude *Real track by Cell phone with the maps link. *Tracking on with Mobile APP *Web based online tracking on PC at our server www.Gpstrackerxy.COM. Functions: GPS drift suppression Absolute street address by SMS Location based service (LBS) Voice Monitor Data logging Charges Inquiry Alarm Function Low battery alarm External Power off alarm GPS blind Spot alert SOS Geo-fence Multi-are , a management Movement alarm Over speed alarm ACC working alarm Alarms under Arm State 1 ACC alarm 2.Shock Sensor alarm Alarm without GSM network service Check the Vehicle State Sleep Mode Scheduled wake-up Set up Terminal (local) Time TCP / UDP Switch Configure parameters by USB GPRS setting Less GPRS traffic Modes Switch between "SMS" and "GPRS" Set up monitor center number Cut off the Oil anad Power System Warranty 1. One year warranty is provided for all models. 2. All products have been strictly Quality Checked in house before packing. 3. All products have been well packed before shipping. OEM&ODM Service 1.Customize logo and brand print on the device or box 2.Offer firmware modification service 3.Customize design in bulk order Contact Details Shenzhen Coban Electronics Co., Ltd ( GPS Tracker Manufacturer)

Minimum Order: 100