Sensor–Component Full–Life cycle Test Solutions
Changzhou Hopetech Electronic Technology Co., Ltd.Founded in 2009, is a national high-tech OEM with full in-house hardware & software R&D and participates in national metrology-standard development.
We specialize in electrical-performance testing for temperature, pressure, optoelectronic, MEMS, gas, current and humidity sensors. Our one-stop solution covers incoming quality control (IQC), R&D laboratory calibration, end-of-line (EOL) production testing, reliability validation and on-site after-sales inspection. The instruments support communication-protocol integration with automated production lines. With English-language documentation available, we offer remote technical support for global customers.

- HT3561/A Economical Battery Internal Resistance TesterCost-effective unit for ordinary low-voltage sensor factory calibration. Fast voltage & internal resistance measurement for batch basic-parameter outgoing inspection.
- HT3563/D High–precision Battery Internal Resistance TesterHigh-accuracy calibrator for premium sensors. 0.01% voltage accuracy and 0.5% resistance accuracy, for precise performance parameter characterization in R&D and quality departments.
- HT3564/L/H High–voltage Battery Internal Resistance Tester ★ Core Production–Test UnitUp to 1500 V test voltage, designed for parameter measurement on high-side of high-voltage current/voltage and isolation sensors.
- HT/CHT3554 Portable High-precision Internal Resistance TesterCompact handheld design, supports on-site calibration and after-sales portable detection for installed sensors.
- CHT9951A/B High-voltage Hipot TesterMax 10 kV high-voltage output. Performs insulation & hipot certification tests for housings of high-voltage isolation and industrial sensors to verify high-voltage isolation safety.
- HT3530/A Precision Insulation Resistance TesterUltra-high measurement range with pA-level leakage-current resolution. Validates input-output isolation performance of isolation-type sensors.
- DT3115B Series Differential-Pressure Airtightness TesterHigh-precision differential-pressure detection. Quickly identifies sealing defects for outdoor waterproof & hermetic sensors for IP-grade mass-production testing.
- HT3565/A Fuel–Cell Dedicated TesterSpecialized tester for internal-resistance and voltage measurement of fuel-cell and gas sensors.
Sensor products often suffer from abnormal lead contact, thin-film resistance drift, insulation-hipot breakdown, poor grounding and housing microleakage. These issues lead to zero-point drift, signal distortion, false equipment alarms and shortened service life.
Hopetech’s test instruments do not operate as standalone units. Instead, they form a coordinated full-lifecycle test chain. Covering incoming inspection, R&D calibration, mass-production testing, reliability validation and on-site troubleshooting, our system addresses multi-dimensional quality risks throughout the entire sensor manufacturing workflow.

| Test Category | Application / Materials | Corresponding Equipment | Core Functions |
| Sensor-ComponentsCurrent / Voltage / Temperature / Isolation / Waterproof / Fuel-cell sensors | Output-voltage & internal-resistance calibration for ordinary low-voltage sensors, basic-parameter factory test | HT3561/A Economical Battery Internal Resistance Tester | Fast voltage + internal resistance measurement, cost-effective for batch factory calibration of conventional sensors |
| Precise output-voltage & internal-resistance calibration, performance characterization for premium sensors | HT3563/D High-precision Battery Internal Resistance Tester | 0.01% voltage accuracy, 0.5% resistance accuracy; high precision for performance calibration of sophisticated sensors | |
| Parameter test for high-voltage current/voltage sensors and isolation-sensor high-voltage side | HT3564/L/H High-voltage Battery Internal Resistance Tester | Max 1500 V test voltage, for industrial high-voltage sensor inspection | |
| On-site sensor calibration & portable after-sales inspection | HT/CHT3554 Portable High-precision Internal Resistance Tester | Compact handheld form factor, supports on-site parameter calibration | |
| Insulation & hipot test and safety certification for housings of high-voltage-isolation & industrial sensors | CHT9951A/B High-voltage Hipot Tester | Max 10 kV output, validates high-voltage isolation safety performance | |
| Input-output insulation-resistance measurement for isolation-type sensors to verify isolation protection | HT3530/A Precision Insulation Resistance Tester | Ultra-high resistance range, pA-level leakage-current resolution for isolation-performance evaluation | |
| IP waterproof-rating & sealing-performance test for outdoor waterproof and hermetic sensors | DT3115B Series Differential-Pressure Airtightness Tester | High-precision differential-pressure detection, fast screening of sealing defects for mass-production | |
| Dedicated performance test for fuel-cell and gas sensors | HT3565/A Fuel-Cell Dedicated Tester | Specialized for internal-resistance & voltage testing of fuel-cell-related sensors |