Hand-held electrical tester that identifies live and neutral wires using non-contact sensing, audible buzzer and LED indicators. Aicevoos A1 Voltage Tester gives electricians and DIYers clear visual and audible cues to avoid accidental contact when tracing conductors. Is the sensitivity reliable for low-voltage household systems?
⚡ At a Glance
- • Detection Range: Selectable detection for low and standard AC voltages, 12–1000V and 48–1000V
- • Best for: Electricians and DIYers needing quick, non-contact checks on live and low-voltage circuits
- • Not ideal for: Users requiring precise voltage readouts or a full multimeter for diagnostics
Non-contact NCV tester with H/L sensitivity selection and audible/visual alarms. Built-in torch, pocket clip and automatic shutdown add practical safety for on-site checks.
Clear live/neutral alerts – with audible buzzer and LED indicators
NCV induction works via a sense probe that detects AC voltage fields; the tip placed near an outlet or cable triggers a red light and buzzer when voltage is present. Sensitivity selection adjusts response to stronger or weaker fields using the H/L key.
Immediate audio and visual feedback makes wire tracing faster and reduces guesswork. Higher beep frequency and red light indicate closer or higher-voltage sources, aiding rapid identification.
Works on low and standard circuits – thanks to selectable dual-range sensitivity
Dual-range detection supports 12–1000V AC and 48–1000V AC modes, chosen with a dedicated H/L key to accommodate both household mains and lower-voltage systems. The H/L setting increases sensitivity for doorbells, thermostats and irrigation wiring.
Switchable sensitivity allows safe checks on delicate low-voltage circuits as well as standard mains, avoiding false negatives during routine maintenance. A single tool covers a wider range of tasks without swapping equipment.
Practical on-site design – with built-in torch, pocket clip and auto-shutdown
Compact pen form includes a bright LED flashlight for dim locations and a pocket clip for secure carry. The tester is double insulated, complies with CE standards, and alerts with a power indicator when battery voltage falls below 2.5V, then shuts down automatically after five minutes of inactivity.
Compact design and torch help with inspections inside cupboards or behind appliances, while auto-shutdown preserves battery life and the pocket clip keeps the tester to hand. Safety markings and insulation suit regular field use.
✨ The 4 Key Reasons for Aicevoos A1 Voltage Tester
- Selectable H/L sensitivity – Detects both low-voltage circuits and standard mains reliably
- NCV induction probe – Fast non-contact checks without exposing conductors
- Audible buzzer with LED colours – Clear, graded alerts that show proximity and voltage presence
- Built-in torch and pocket clip – Easy use in dark, cramped spaces and convenient carry
📋 Technical Details at a Glance
- Category: BISS
- Detection Range: 12V–1000V AC / 48V–1000V AC (dual range)
- Sensitivity Modes: H/L selectable via H/L key
- Sensing Type: NCV induction probe for AC voltage
- Indicators: Red and yellow LED visual alerts
❓ Frequently Asked Questions
Q: Can the tester detect low-voltage circuits like doorbells and thermostats?
A: Yes, dual-range detection covers lower voltages, with a selectable H/L sensitivity mode specifically intended for low-voltage circuits such as doorbells and thermostats.
Q: Is the tester non-contact or does it require direct contact with wires?
A: Non-contact NCV induction lets the tip be placed near an outlet or power cord to detect AC voltage, with a red light and buzzer indicating the presence of live wiring.
Q: How does battery management work and is there an auto-off feature?
A: A power indicator lights when battery voltage falls below 2.5V, and automatic shutdown occurs after five minutes of no operation or no signal detection.
🏆 Our Verdict
Suitable for electricians, maintenance technicians and DIY enthusiasts who need a quick, non-contact way to identify live and neutral conductors. The combination of dual-range NCV sensing, audible and visual alerts, and compact torch-equipped pen design makes routine wire tracing safer and more efficient. Durable safety features and automatic shutdown deliver solid long-term utility and dependable field use.
