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Call 0345 2300 599Measall KC761A Radiation Spectrometer
High-sensitivity CsI(Tl) scintillation spectrometer with 8.2% FWHM resolution, energy-compensated dose measurement, spectrum analysis, extensive data connectivity and rugged IP65 construction.
The Measall KC761A is a portable radiation multimeter and spectrometer designed to provide considerably more information than a conventional Geiger counter.
At its core is a 2.54cm³ CsI(Tl) scintillation detector coupled to a solid-state SiPM sensor and integrated multi-channel analyser. Instead of simply counting detected events, the KC761A measures their energy distribution and can display a detailed radiation spectrum directly on the instrument.
With an energy response of approximately 9keV to 3MeV, gamma sensitivity of approximately 70cps/(µSv/h) at 662keV and energy resolution of up to 8.2% FWHM at 662keV, it is well suited to gamma and X-ray measurement, source comparison, spectroscopy experiments and general radiation monitoring.
Energy resolution of up to 8.2% FWHM at 662keV for clearer separation of spectral peaks.
Wide measurement response extending into the X-ray region and through common gamma-ray energies.
Long operating life from readily available replaceable AA batteries.
Weather-resistant enclosure with approximately 1.5m drop protection for portable use.
Measure Energy, Not Just Counts
A conventional radiation counter can tell you that an event has occurred. The KC761A goes considerably further by using its multi-channel analyser to measure the distribution of energy detected by the scintillation sensor.
The resulting spectrum can reveal individual peaks and other characteristics of the source, providing far more useful information for spectroscopy, comparison and experimental investigation.
CsI(Tl) Scintillator with SiPM
The KC761A uses a 2.54cm³ caesium iodide thallium-doped scintillation crystal coupled to a low-noise silicon photomultiplier.
View the Radiation Spectrum Directly
Spectrum Mode displays the measured energy spectrum directly on the KC761A, allowing characteristic peaks and overall spectral shape to be examined without first connecting the instrument to another device.
Measurement data can also be stored for later comparison or more detailed computer-based analysis.
Energy-Compensated Dose Measurement
In Dose Mode, the KC761A displays radiation dose rate together with a time-based graph showing how the measured level changes.
Because the KC761A measures pulse energy as well as event count, it can compensate for changes in detector response across different energies rather than relying only on a raw count rate.
Cumulative dose can also be recorded during longer measurement periods.
16mm² PIN Detector
Alongside the main scintillation detector, the KC761A includes a 16mm² PIN detector protected by a Mylar film.
This secondary detector can be used for experimental measurements involving alpha and beta radiation, giving the KC761A capabilities beyond its primary gamma and X-ray spectroscopy functions.
The instrument also provides an internal position for supported optional sensor modules, such as a neutron detector.
Active Temperature Compensation
The scintillation probe incorporates active temperature compensation to help minimise energy drift as ambient conditions change, particularly during longer spectrum accumulation periods.
Portable, Desktop or Networked
External power and data connectivity.
Wired network connection with Power over Ethernet support.
Wireless connectivity to supported Android and iOS devices.
Save measurement results, screenshots and spectrum data to removable storage.
Save and Export Your Results
A compatible TF or microSD card can be used to save measurement results and screenshots for later analysis.
KCSDI App and Network Monitoring
The KC761A can connect to compatible Android and iOS devices through the KCSDI app for remote operation and measurement-data transfer.
Ethernet and PoE also allow the instrument to form part of a fixed or remotely viewed monitoring installation without relying solely on battery power.
Around 300 Hours from AA Batteries
Rather than relying on a proprietary internal battery, the KC761A uses readily available AA cells and provides approximately 300 hours of battery operation.
Compatible rechargeable NiMH cells can also be charged by the instrument.
AA batteries and the optional TF / microSD storage card must be supplied separately.
IP65 and 1.5m Drop Protection
The KC761A is built for portable measurement work with an IP65-rated enclosure and approximately 1.5m drop protection.
Its specified operating range is -10°C to +50°C, while configurable light, sound and vibration alerts can warn the operator when a measurement threshold is exceeded.
Measall KC761A
Technical specifications for the portable KC761A radiation spectrometer and multimeter.
Spectrometer Specifications
Modes and Functions
Displays measured energy distribution and spectral peaks.
Energy-compensated dose-rate display with time-based graphing.
Records accumulated dose information during longer measurements.
Connectivity and Storage
Supported Measurement Data
- Screen captures in BMP format
- Dose-rate data
- Spectrum data
- Multi-channel analyser raw data in CSV format
Battery and External Power
Environmental and Construction
Operator Alerts
Shipping & Delivery
We offer UK and international delivery services, including next working day and selected weekend options for eligible orders. Available services, prices and estimated delivery times are displayed at checkout.
Delivery Information
Delivery options depend on the parcel's size, weight, contents and destination. Express and weekend services are subject to availability and cut-off times. Oversized or exceptionally heavy items may require a specialist delivery quotation.
Returns & Cancellations
To arrange a return, please contact ML&S or complete our returns form. You may also exercise your statutory right to cancel by email or another clear statement, without completing the form.
Changed Your Mind?
Under the Consumer Contracts Regulations 2013, most purchases made online or by telephone can be cancelled within 14 days of receipt.
You must notify us of your cancellation within this period and return the goods within a further 14 days.
Please handle all goods with care. Returned items must be in a resaleable condition, complete with their original packaging, and all supplied accessories.
You may inspect goods as you would in a shop. Handling beyond what is necessary to inspect them may result in a lawful deduction for diminished value.
Exceptions
Modified Equipment & Reversal Charges
Additional return conditions may apply to equipment modified at the customer's request, including wideband transmit or receive modifications.
ML&S may charge a reasonable fee to reverse physical modifications and restore the equipment to its original factory specification. Any such charge will be agreed in advance and deducted from your refund.
Custom-Made Cable Assemblies
Coaxial cable assemblies manufactured to a customer's specifications are excluded from the 14-day return policy and are non-refundable unless faulty.
Software & Labour Charges
Labour and modification charges requested by the customer are non-refundable once the work has been completed.
Computer software may only be returned under the 14-day return policy if it remains sealed and unopened.
Return Postage Charges
Customers are responsible for the direct cost of returning unwanted or incorrectly ordered goods, where permitted by law. You may arrange your own suitable return postage or use one of our optional prepaid services.
Standard Parcels
Royal Mail Return Label
£5.95
Per parcel
For eligible standard-sized parcels, subject to Royal Mail restrictions. Free collection included.
Larger Parcels
DPD Return Label
£7.95
Per parcel
For larger or heavier parcels and any shipments with batteries.
Collection Service
DPD Collection
£25.00
Per parcel
Available upon request for eligible addresses, subject to availability.
Prepaid return charges will be confirmed before booking and deducted from your refund.
These prices apply to eligible UK mainland returns. Oversized items, specialist products and returns from other destinations may require a separate quotation. Estimated return costs will be disclosed before purchase.
Faulty or Incorrectly Supplied Goods
Return postage charges do not apply to faulty, damaged or incorrectly supplied goods returned under statutory rights. ML&S will arrange a free return in these circumstances.
Refunds
Refunds are processed without undue delay following receipt and inspection of returned goods, and no later than 14 days after we receive goods returned under statutory cancellation rights.
Refunds will be issued to the original payment method. Any prepaid return postage charges or lawful deductions for diminished value will be itemised.
Warranty Terms & Conditions
New Equipment Warranty
Minimum 2-Year Warranty
All new products supplied by ML&S carry a minimum two-year warranty against manufacturing defects, excluding batteries, which are covered by separate warranty terms.
Some manufacturers provide extended warranties, such as the three-year warranty available on eligible Yaesu equipment. Any additional coverage is subject to the manufacturer's terms and conditions.
Our workshop may assess and repair faulty equipment on site or refer it to the manufacturer or an authorised service centre where necessary.
Warranty exclusions may include batteries, normal wear and tear, accidental damage, misuse and unauthorised modifications, as specified in the applicable warranty terms.
All warranties are provided in addition to your statutory consumer rights against ML&S, which are not limited by the warranty period.
International Returns & Warranty
Unless otherwise stated, ML&S warranty servicing is carried out in the UK. International customers must contact us before returning goods to confirm shipping and customs requirements.
International customers are responsible for return postage unless the goods are faulty and ML&S has been notified within a reasonable time.
ML&S accepts no responsibility for additional charges resulting from incorrectly completed customs documentation. Any additional duties charged to ML&S as a result will be billed to the customer before return of the goods.
Need Help With a Return?
Our team can assist with returns, postage arrangements, modifications and warranty claims.
Nothing in these terms excludes or limits your statutory consumer rights.