ETI MicroTherma 1 Microprocessor Thermometer (Self-Calibrating)

  • Multi-type thermocouple input – supports K, J, T, R, N, S and E probes
  • Auto self-recalibration – maintains accuracy over time
  • ±0.3 °C accuracy – reliable calibration results
  • Hold and Min/Max modes – capture key readings fast
  • Probe offset adjustment – correct probe errors easily
£186.00 £155.00

Availability: In stock

Product Code
ETI221-091

Free Delivery over £99

90-day Returns

Technical Support

ETI MicroTherma 1 Microprocessor Thermometer (Self-Calibrating)

High-Accuracy Multi-Type Thermocouple Thermometer for Industrial Technicians

The MicroTherma 1 Microprocessor Thermometer is a high-performance handheld temperature meter designed for UK technicians working in industrial maintenance, process engineering, HVAC commissioning and electrical test environments where reliable thermocouple measurement is essential. Built for demanding applications, it delivers fast, accurate readings across extreme temperature ranges using a wide selection of thermocouple probe types.

With support for Type K, J, T, R, N, S and E thermocouples, the MicroTherma 1 is ideal for temperature monitoring in plant rooms, laboratories, manufacturing sites and calibration tasks. Its ±0.3°C accuracy and clear dual LCD display make it a dependable tool for fault finding, system verification and routine temperature checks.

A key benefit is the built-in microprocessor self-diagnostic recalibration, designed to maintain long-term accuracy without frequent manual recalibration. Users can also apply a probe offset adjustment to correct known probe errors, improving overall measurement confidence. 

 

How does the MicroTherma 1 stand out in everyday use?

It supports multiple thermocouple types and automatically maintains calibration accuracy, making it ideal for technicians who need reliable temperature testing across different systems and probe setups.

 

Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.

 

More Information
ManufacturerETI
Manufacturer Part Number221-091
GTIN5024368210913
Included CalibrationCall for info
  • Temperature Range: -270 to 1768 °C (-454.0 to 3214 °F)
  • Resolution: 0.1 °C/°F (within range ±1999.9 °)
  • Accuracy: ±0.3 °C (±0.5 °F)
  • Thermocouple Types Supported: Type K, J, T, R, N, S and E (selectable)
  • Functions: Hold, Max/Min with reset
  • Display: 4½-digit dual LCD with status indicators
  • Battery: 2 x 1.5V AAA
  • Battery Life: 1000 hours
  • Auto Power Off: Yes (30 minutes, user selectable)
  • Dimensions: 35 x 73 x 141 mm
  • Weight: 175 g
  • Case Material: ABS plastic
  • Measurement Scale: Celsius/Fahrenheit
  • Country of Manufacture: United Kingdom
  • Certification: FREE traceable calibration certificate
  • MicroTherma 1 Microprocessor Thermometer
  • FREE traceable calibration certificate
  • User documentation

Why choose Instrotech for your electrical test equipment?

With over 40 years’ experience supporting UK electricians, technicians and engineers, Instrotech is your trusted partner for quality tools and expert service. When you purchase from us, you benefit from:

  • Free UK shipping on orders over £99
  • Access to our knowledgeable technical support team
  • Available calibration services to maintain safety compliance
  • A 90-day money-back guarantee for complete peace of mind

We’re committed to helping you work safely and efficiently with industry-leading products and ongoing support.