A compact non-contact voltage tester designed to identify live and neutral AC wiring quickly and safely, KAIWEETS Voltage Tester HT100. Provides reassurance for electricians and homeowners checking circuits without removing insulation. Is it the right tool for routine fault-finding and quick safety checks?
⚡ At a Glance
- • Voltage Detection: Non-contact AC detection with dual-range 12V-1000V / 48V-1000V and an NCV inductive probe showing levels on a bar graph
- • Best for: Electricians, installers and homeowners performing quick live/neutral checks and breakpoint testing
- • Not ideal for: Precision diagnostic tasks that require true DC voltage, current or resistance measurements
Non-contact AC voltage tester with adjustable sensitivity and audible plus visual alerts. IEC CAT IV 600V and CAT III 1000V safety ratings combine with a pocket-sized pen form factor.
Locate live and neutral wires quickly - with NCV inductive probe
The NCV inductive probe detects AC fields when the tip is placed near terminals, sockets or supply cords, triggering a red tip light and an audible beep. A bar graph displays relative voltage and the alarm frequency increases as proximity or sensed voltage rises.
Fast, non-invasive checks let users identify live conductors without exposing bare wiring, reducing time spent on basic fault-finding. Clear audio and visual cues help when working behind plasterboard or in crowded junction boxes.
Work across low-voltage and mains circuits - with dual-range sensitivity and S button
Dual detection ranges cover 12V-1000V AC and 48V-1000V AC, and a dedicated S button switches to a lower sensitivity setting for delicate circuits. The NCV sensor automatically recognises voltage level and updates the bar graph accordingly.
Adaptable sensitivity allows safe checks on doorbells, thermostats and irrigation wiring as well as household mains, avoiding false positives while giving confidence on low-voltage systems. Useful for both installers and DIYers who handle mixed-voltage environments.
Safer checks on site - with high-voltage alert and IEC safety ratings
A high-voltage alert activates above 90V, turning the display red and illuminating a safety symbol, while audible alarms accompany visual warnings. The unit meets IEC ratings of CAT III 1000V and CAT IV 600V and is double insulated.
Audible and visual warnings reduce the chance of overlooking live conductors, improving safety in noisy or poorly lit environments. Robust safety ratings and insulation make the tester suitable for demanding on-site checks.
✨ The 4 Key Reasons for KAIWEETS Voltage Tester HT100
- Adjustable S-button sensitivity - Switch to low range for doorbells and thermostats reliably
- Escalating audible alarm - Beep frequency rises with proximity and higher voltage levels
- High-voltage visual alert - Screen turns red above 90V for immediate warning of dangerous voltage
- Pocket pen design with LED - Built-in torch and auto power-off for convenience during site work
📋 Technical Details at a Glance
- Category: Non-contact voltage tester, dual-range
- Measurement Range: 12V-1000V AC and 48V-1000V AC
- NCV Sensor: Inductive probe for AC voltage detection
- Sensitivity Adjustment: S button to toggle low/high sensitivity ranges
- Display: Bar graph with red/green indication for live or null wiring
❓ Frequently Asked Questions
Q: Can the tester detect live wires without touching the conductor?
A: Yes, the NCV inductive probe detects AC voltage when the tip is placed near a terminal, outlet or supply cord, producing both a red tip light and an audible beep.
Q: Can sensitivity be changed for low-voltage systems like doorbells?
A: Yes, pressing the S button switches the unit into a lower sensitivity range, suitable for doorbells, thermostats and other low-voltage wiring.
Q: Is the tester suitable for on-site mains testing from a safety perspective?
A: Yes, IEC ratings of CAT III 1000V and CAT IV 600V, double insulation and a high-voltage alert above 90V provide appropriate protection for routine on-site checks.
🏆 Our Verdict
Suitable for electricians, installers and homeowners who need quick, non-invasive checks of AC wiring. Dual-range NCV detection with adjustable sensitivity, audible and visual alarms, plus high IEC safety ratings, make it practical for routine fault-finding. Strong safety features and three-year after-sales support suggest sensible long-term value for regular users.
