TES-1326S Infrared Thermometer by MKN
| Brand | MKN |
|---|---|
| Model | TES-1326S |
| Measurement Range | −35 °C to +500 °C (−31 °F to 932 °F) |
| Resolution | 0.1 °C / 0.2 °F |
| Accuracy | ±2% of reading or ±2 °C (whichever is greater) |
| Spectral Response | 6–14 µm |
| Distance-to-Spot Ratio | 12:1 |
| Laser Targeting | Class II, <1 mW |
| Display | Backlit LCD |
| Auto Power-Off | ~15 s |
| Battery | 9V (IEC 6LR61, 006P) |
| Continuous Operation Time | ~100 h (laser and backlight off) |
| Operating Environment | 0–50 °C, ≤80% RH |
| Storage | −10–60 °C, ≤70% RH |
| Dimensions | 172 × 118 × 46 mm |
| Weight | 220 g |
Overview
The TES-1326S Infrared Thermometer is a handheld non-contact temperature measurement instrument engineered for industrial maintenance, HVAC diagnostics, electrical panel inspections, and routine thermal verification tasks. It operates on the principle of passive infrared radiation detection—capturing mid-wave infrared energy emitted from surfaces within the 6–14 µm spectral band, which corresponds to the peak emissive range of most organic and oxidized materials at common ambient and elevated temperatures. Equipped with a fixed emissivity setting of 0.95, the device is optimized for use on painted metals, rubber, plastics, concrete, and other moderately high-emissivity surfaces without requiring real-time emissivity adjustment. Its 12:1 optical distance-to-spot ratio enables reliable spot measurements from safe working distances—for example, measuring a 10 mm target at 120 mm—while minimizing operator exposure in high-temperature or electrically hazardous environments.
Key Features
- Wide operational range from −35 °C to +500 °C (−31 °F to 932 °F), supporting both cryogenic surface checks and high-temperature process monitoring.
- High-resolution digital display with 0.1 °C / 0.2 °F readability and integrated backlight for low-light conditions.
- Class II visible laser targeting system (<1 mW output) for precise aiming—compliant with IEC 60825-1:2014 safety standards.
- Onboard MAX/MIN value tracking for transient thermal events, facilitating quick identification of thermal anomalies during scanning routines.
- Low-power architecture enabling approximately 100 hours of continuous operation when laser and backlight functions remain inactive.
- Auto power-off after ~15 seconds of inactivity conserves battery life and supports ISO 9001-aligned equipment stewardship protocols.
- Rugged ergonomic housing (172 × 118 × 46 mm, 220 g) designed for one-handed operation and field durability under typical workshop or facility conditions.
Sample Compatibility & Compliance
The TES-1326S is intended for non-contact surface temperature assessment of solid, non-reflective, and thermally stable targets. It is not suitable for measuring highly reflective (e.g., polished aluminum or stainless steel), transparent (e.g., glass or thin plastic films), or rapidly moving surfaces without prior emissivity calibration. While the device does not provide adjustable emissivity, its factory-set value of 0.95 aligns with ASTM E1933-19 (Standard Test Methods for Measuring and Compensating for Emissivity Using Infrared Imaging Systems) guidance for generalized industrial applications. The unit complies with CE marking requirements for electromagnetic compatibility (EN 61326-1) and low-voltage safety (EN 61010-1), and meets RoHS Directive 2011/65/EU restrictions on hazardous substances. It is not certified for use in explosive atmospheres (ATEX/IECEx) or intrinsically safe environments.
Software & Data Management
The TES-1326S is a standalone, firmware-based instrument with no built-in data logging, Bluetooth, or USB connectivity. All measurements are displayed in real time and retained only as instantaneous MAX/MIN values in volatile memory. No software drivers, proprietary applications, or cloud synchronization capabilities are provided. This design prioritizes operational simplicity, rapid deployment, and long-term reliability in settings where traceability is maintained via manual recording or external documentation systems compliant with ISO/IEC 17025 or internal QA procedures. For laboratories requiring audit-ready thermal records, integration with external thermal imaging platforms or calibrated reference thermometers is recommended for cross-validation.
Applications
- Preventive maintenance: Detecting overheated motor windings, bearings, circuit breakers, and transformer bushings.
- HVAC commissioning: Verifying duct surface temperatures, coil performance, and insulation integrity.
- Food service & storage: Spot-checking holding cabinet, refrigeration unit, and serving line surface temperatures per FDA Food Code guidelines.
- Automotive diagnostics: Assessing exhaust manifold, brake rotor, and catalytic converter thermal profiles.
- Building envelope inspection: Identifying thermal bridging, moisture infiltration points, and insulation gaps during energy audits.
- Education and vocational training: Demonstrating Stefan–Boltzmann law principles and infrared radiation fundamentals in physics and engineering labs.
FAQ
What is the spectral response range of the TES-1326S?
The detector is sensitive to infrared radiation between 6 and 14 micrometers (µm), optimized for general-purpose surface temperature measurement.
Can emissivity be adjusted on this model?
No—the TES-1326S uses a fixed emissivity value of 0.95 and does not support user-configurable emissivity settings.
Is the laser targeting feature Class I or Class II?
It is a Class II visible laser (<1 mW), compliant with international laser safety standards for consumer and industrial handheld devices.
Does the device meet FDA 21 CFR Part 11 requirements?
No—this is an analog-display, non-networked instrument with no electronic recordkeeping, audit trail, or user authentication functionality.
What battery type does it use, and how long does it last?
It operates on a single 9V alkaline battery (IEC 6LR61 / 006P); battery life is approximately 100 hours under typical usage with laser and backlight disabled.
