Heat Detector Sensor TDM95E | ZKTeco
Heat Detector Sensor TDM95E is designed and manufactured by ZKTeco and is one of the accessories that support some devices from ZKTeco and its national distributors for temperature detection from a maximum 1-meter long distance through infrared technology (IR).
TDM95E is an indoor USB temperature detection module compatible with both the Time Attendance and Access Control devices of ZKTeco. The Heat Detector Temperature Range can be easily connected to ZK Biometric devices via a USB port for accurate body temperature measurement by users.
The device automatically detects the temperature of users and displays the measured temperature. IR sensor complexity and technology with high range calculate the distance of how far the sensor is capable to detect the exact degree of temperature.
The ZKTeco TDM95E is an indoor USB-based temperature detection module, tailored to integrate with ZKTecoās Time & Attendance (T&A) and Access Control (A&C) systems. Its primary function is non-contact body temperature measurement, ideal for screening purposes in workplaces, educational institutions, healthcare settings, retail outlets, and other public or private facilities. Its compact design and seamless USB connectivity make it both practical and efficient.
Key Features
- USB Communication (USB TypeāC): Easy plug-and-play connection to host devices.
- Measurement Range: Detects human body temperature from 32.0āÆĀ°C to 42.9āÆĀ°C (or 89.6āÆĀ°F to 109.22āÆĀ°F).
- Accuracy: Excellent precision with a deviation of ±0.3āÆĀ°C (±0.54āÆĀ°F).
- Detection Distance: Optimal range is 3āÆcm to 5āÆcm, designing for close proximity, minimal error.
- Compact Display: Fourādigit digital display displays the measured temperature; if there’s no trigger for several seconds, it shows ā—ā.
- Dual Temperature Units: Configurable to show either Celsius or Fahrenheit; switchable via long press.
- Power Requirements: Operates on a 5āÆV USB supplyāno external power source required.
- Operating Conditions:
- Temperature: 15āÆĀ°C ā 35āÆĀ°C (59āÆĀ°F ā 95āÆĀ°F)
- Humidity: 10% ā 85% relative humidity
- Physical Dimensions: 88 Ć 88 Ć 54.63āÆmm; weight approximately 0.17āÆkg.
- Packaging Weight: ~0.29āÆkg.
- Warranty: Generally includes a 1-year warranty, as noted in the Quick Start Manual.
Technical Specification at a Glance
| Specification | Details |
|---|---|
| Communication Interface | USB 1.1 (Type-C connector) |
| Temperature Detection Range | 32.0āÆĀ°C ā 42.9āÆĀ°C / 89.6āÆĀ°F ā 109.22āÆĀ°F |
| Accuracy (Deviation) | ±0.3āÆĀ°C / ±0.54āÆĀ°F |
| Measurement Distance | 3 ā 5āÆcm |
| Display | 4-digit digital temp reading |
| Power Input | 5āÆV USB |
| Operating Temperature | 15āÆĀ°C ā 35āÆĀ°C / 59āÆĀ°F ā 95āÆĀ°F |
| Operating Humidity | 10% ā 85% |
| Weight | ~0.17āÆkg; with packaging: ~0.29āÆkg |
| Dimensions | 88āÆmm ĆāÆ88āÆmm ĆāÆ54.63āÆmm |
| Temperature Units | °C or °F (switchable) |
| Warranty | 1 year (from purchase) |
| Storage Conditions | ā20āÆĀ°C to 55āÆĀ°C (quick guide) |
| Atmospheric Pressure Tolerance | 70āÆkPa ā 106āÆkPa |
Use Cases & Applications
The TDM95E module is exceptionally suited for:
- Corporate offices: Fast screening during employee check-ins.
- Educational institutions: Efficient temperature checks for students/staff.
- Healthcare facilities: Monitor visitors or non-critical staff hygiene.
- Retail and public spaces: Seamless health checks with minimal congestion.
- Integration within existing systems: Works with ZKTecoās T&A or A&C panelsāno extra workstation needed.
Installation & Setup
Quick Start Highlights:
- Unbox: Includes the TDM95E module, a TypeāC USB cable, and Quick Start Guide.
- Connect: Plug into a compatible ZKTeco device via USBāensure the device is powered.
- Initialize: Perform two temperature measurements at the correct distance to initialize reading.
- Switch Units: Long-press the Reset button for 3 seconds to toggle between °C and °F; take one measurement to save setting.
- Idle Behavior: After ~10 seconds of inactivity, the display resets to ā—ā.
- Ambient Considerations: Avoid placing the device in extreme temperature zones to minimize errors. Measurements immediately after exposure to extreme ambient temperatures may vary.
- Storage: Store between ā20āÆĀ°C to 55āÆĀ°C; keep in well-ventilated, non-corrosive environments.
Advantages & Strengths
- High precision: ±0.3āÆĀ°C ensures reliable human body temperature readings.
- Quick proximity detection: 3ā5āÆcm measurement avoids overcrowding.
- Hygienic design: Non-contact reduces contamination risk.
- Ease of integration: Direct USB interface requires minimal configuration.
- Compact and durable: Simple to deploy in constrained spaces.
- Global adaptability: Dual-unit support enables region-specific use.
- Low maintenance: No calibration needed; passive operation.
- Economical: Efficient solution without thermal imaging complexity.
Limitations & Considerations
- Narrow measurement range: Not suitable for environmental heatingāonly human operational range.
- Close proximity required: Ideal use cases must accommodate 3ā5āÆcm distance.
- Ambience sensitive: Requires stable indoor conditions within 15āÆĀ°Cā35āÆĀ°C and moderate humidity.
- Display size: Fourādigit readout is small; best used with host device interface.
- Minimal onboard logic: Relies entirely on host device software; some configurations require host-side management.
The ZKTeco TDM95E Module delivers precise, efficient, and reliable temperature screening in a compact and cost-effective form. Ideal for modern health-conscious workplaces and public spaces, it supports seamless integration with existing T&A and A&C systems.
Its minor limitationsānarrow range, indoor use, close distance requirementāare outweighed by its reliability, ease of use, and hygiene benefits. Smart integration via USB and dual-unit flexibility make it globally deployable.
FAQ
- What is the temperature range of the TDM95E?
- 32.0āÆĀ°C to 42.9āÆĀ°C (89.6āÆĀ°F to 109.22āÆĀ°F).
- How accurate is it?
- ±0.3āÆĀ°C (±0.54āÆĀ°F).
- How close must the object be for measurement?
- 3āÆcm to 5āÆcm.
- What type of connection does it use?
- USB 1.1 via TypeāC connector.
- Is the display in Celsius or Fahrenheit?
- Both; switchable via reset button.
- Does the display stay on permanently?
- No: ā—ā appears after about 10 seconds without trigger.
- What power does it use?
- 5āÆV via USB.
- What are the operating conditions?
- 15ā35āÆĀ°C, 10ā85% humidity.
- What are its dimensions and weight?
- 88 Ć 88 Ć 54.63āÆmm; 0.17āÆkg (device), 0.29āÆkg (packaged).
- How long is the warranty?
- 1 year from purchase.
- Can it measure environmental heat sources?
- No; designed only for human body temperature range.
- Does it need calibration?
- Generally no; stable out-of-the-box performance expected.
- What if ambient temperature changes suddenly?
- May cause short-term deviation; allow acclimatization before measurement.
- Can I reuse data on another device?
- Yes; it transmits readings to host system via USB interfaceāyour T&A or A&C platform handles data.
- Can it be used outdoors?
- Not recommendedāoptimized for indoor environments under specified conditions.
- Is there a power-on reset for unit switching?
- Yes; long-press reset for 3 seconds and take one measurement to retain unit change.
- Where to store when unused?
- In ventilated, non-corrosive space between ā20āÆĀ°C to 55āÆĀ°C.
- Is ambient pressure relevant?
- Should tolerate 70ā106āÆkPa.
- Is it noisy?
- No moving parts; silent operation.
- Who should I contact for technical support?
- Contact ZKTeco sales or support per regional channels. Specific contact information available in product documentation.



Gulshan Singh –
I was a bit hesitant at first, but this product is amazing! Itās really easy to use.
Ranjan Kumar –
Great product, and the service was hassle-free. Worth every rupee!