Insulation Tester Manufacturer,Supplier and Exporter in India
Product Code : EL-LE-11719
Jlab Export is a leading Insulation Tester Manufacturer,and suppliers in India
Insulation Tester (code EL-LE-11719) is a digital insulation tester, model JL121/09, that applies 250 V, 500 V or 1000 V to check the insulation of cables, motors and installation wiring, and also reads DC voltage to 1000 V, AC voltage to 750 V and low resistance to 2 kΩ. JLab makes this tester in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Model | JL121/09 |
| Insulation test voltages | 250 V, 500 V and 1000 V, each ±10% |
| Resistance | 0–2 kΩ |
| Voltage | 0–1000 V DC, 0–750 V AC |
| Continuity alarm | Below 50 Ω ±10 Ω |
| Input impedance | 10 MΩ |
| AC frequency response | 40–400 Hz |
| Display | Max. 1999, manual range, 75 × 52 mm LCD, 10 s backlight |
| Sampling rate | 3 times per second |
| Power | 6 × 1.5 V AA or external 9 V DC; low-battery indication at 7.5 V |
| Quality check | Each insulation tester is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 5 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-LE-11719 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Picking a Test Voltage
The three test voltages let the check suit the circuit: 250 V for low-voltage control wiring, 500 V for ordinary mains wiring and 1000 V for higher-rated cables and machines. Before any test voltage is applied, use the voltage ranges to make sure the circuit is dead, then disconnect equipment that should not see the test voltage. The continuity alarm, which sounds below 50 Ω, is handy for confirming that a conductor runs end to end before its insulation is tested.
Related Electrical Testers
- Earth Tester (Complete Set) — measures earth resistance by the 2-wire or 3-wire method.
- High Voltage Insulation Break Down Tester — finds the voltage at which insulation breaks down.
- Clamp-on-Ampere Meter — checks load current on the same circuits.
Further meters and testers for electrical labs are in Lab Equipment.
Request a Quote
Ask for the tester through Add To Cart or the contact page, with the quantity and the delivery location.
Last updated: 25 October 2026
