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- Save Space: Two popular electrical testers combined into one for your tool belt
- Save Time: Tests for seven common wiring conditions
- Save Money: One less tool to purchase - double the value
- Advanced Technology: Quickly provide an accurate analysis of your receptacle
DualCheck - Non-Contact Voltage Tester & GFCI Outlet Analyzer
Two of the most popular testers combined - A must have for any homeowner or professional electrician
- Exclusive GFCI LED Readout - Provides immediate indication of the wiring error, no need to memorize or interpret a chart
- Tests both GFCI and standard outlets - wired in series with GFCI outlets (e.g. multiple outlets in kitchen or bath)
- Hi-Visibility 360° LED indication
- Loud beeping audible indicator confirms voltage or GFCI test completion
- Hi-Impact ABS Housing with over-molded grips
- Withstands a 10 ft drop and a 250 lb crush
- Backed by Sperry Instrument's Limited Lifetime Warranty
Open Neutral
Open Ground
Hot/Neutral
Hot/Ground Reverse
 DualCheck Non Contact Voltage Tester & GFCI Outlet Analyzer |  Adjustable Non Contact Voltage Sensor |  Non Contact Voltage Sensor |  Stop Shock II GFCI Outlet Circuit Analyzer |  GFCI Outlet Tester | |
|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — |
| Price | — | — | — no data | — | — |
| AC Voltage | 50 - 600V | 12 - 1000V | 50 - 1000V | 120V | 120V |
| Non-Contact Voltage | ? | ? | ? | - no data | - no data |
| GFCI & Receptacle Tester | ? | - no data | - no data | ? | ? |
| Audible | ? | ? | ? | - no data | - no data |
| Visual | ? | ? | ? | ? | ? |
| Agency Approval | ETL Listed | C-UL US Listed, CE | C-UL US Listed, CE | ETL Listed | C-UL US Listed, CE |
| CAT Rating | lll 1000V | lll 1000V, lV 600V | lll 1000V, lV 600V | lll 300V | lll 300V |
| Drop & Crush Rating | 10 ft Drop & 250 lb Crush | 10 ft Drop & 250 lb Crush | 10 ft Drop & 250 lb Crush | 10 ft Drop & 250 lb Crush | 10 ft Drop & 250 lb Crush |
| Warranty | Limited Lifetime Warranty | Limited Lifetime Warranty | Limited Lifetime Warranty | Limited Lifetime Warranty | Limited Lifetime Warranty |
DualCheck - Non-Contact Voltage Tester & GFCI Outlet Analyzer
- Save Space: Two popular electrical testers combined into one for your tool belt
- Save Time: Tests for seven common wiring conditions
- Save Money: One less tool to purchase - double the value
- Advanced Technology: Quickly provide an accurate analysis of your receptacle
Two of the most popular testers combined - A must have for any homeowner or professional electrician
- Exclusive GFCI LED Readout - Provides immediate indication of the wiring error, no need to memorize or interpret a chart
- Tests both GFCI and standard outlets - wired in series with GFCI outlets (e.g. multiple outlets in kitchen or bath)
- Hi-Visibility 360° LED indication
- Loud beeping audible indicator confirms voltage or GFCI test completion
- Hi-Impact ABS Housing with over-molded grips
- Withstands a 10 ft drop and a 250 lb crush
- Backed by Sperry Instrument's Limited Lifetime Warranty
Understanding Your DualCheck Readings
Open Neutral: The neutral wire is not properly connected to the outlet or has become loose.
Understanding Your DualCheck Readings
Open Ground: The ground wire is not properly connected to the outlet. The ground wire is loose or has not been properly connected.
Understanding Your DualCheck Readings
Hot/Neutral Reverse: The hot and neutral wires are reversed or have shorted somewhere within the circuit.
Understanding Your DualCheck Readings
Hot/Ground Reverse: The ground and hot wires are reversed or are shorted somewhere within the circuit.
 DualCheck Non Contact Voltage Tester & GFCI Outlet Analyzer |  Adjustable Non Contact Voltage Sensor | Non Contact Voltage Sensor | Stop Shock II GFCI Outlet Circuit Analyzer | GFCI Outlet Tester | |
|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — |
| Price | — | — | — no data | — | — |
| AC Voltage | 50 - 600V | 12 - 1000V | 50 - 1000V | 120V | 120V |
| Non-Contact Voltage | ? | ? | ? | - no data | - no data |
| GFCI & Receptacle Tester | ? | - no data | - no data | ? | ? |
| Audible | ? | ? | ? | - no data | - no data |
| Visual | ? | ? | ? | ? | ? |
| Agency Approval | ETL Listed | C-UL US Listed, CE | C-UL US Listed, CE | ETL Listed | C-UL US Listed, CE |
| CAT Rating | lll 1000V | lll 1000V, lV 600V | lll 1000V, lV 600V | lll 300V | lll 300V |
| Drop & Crush Rating | 10 ft Drop & 250 lb Crush | 10 ft Drop & 250 lb Crush | 10 ft Drop & 250 lb Crush | 10 ft Drop & 250 lb Crush | 10 ft Drop & 250 lb Crush |
| Warranty | Limited Lifetime Warranty | Limited Lifetime Warranty | Limited Lifetime Warranty | Limited Lifetime Warranty | Limited Lifetime Warranty |