Second Edition of "MyGeiger" DIY Geiger Counter Kit

Dosimeter Kit for DIY Soldering.

Only DIP components to solder (SMD parts already installed)! The kit require very good soldering skills. Here is purchase options, please review it carefully before you pay!

• Not assembled kit with LCD Shield +$0.00
• Assembling Service (recommended if you are not sure how to solder it) +15.00

Take note: Geiger Tube, Lithium Battery and Enclosure are not included!

Technical specifications:

• Geiger Tube PCB Compatibility: STS-5, SBM-20, J305
• Geiger Tube Wire Connection Compatibility: LND-712, LND-7317, SBT-9, SI-29BG and more
• 400V or 500V Tube Voltage
• 128x64 High Quality Graphic LCD with Shield PCB
• Auto Scaling and Auto Scrolling LCD Graph for the last 5 minutes
• Smart Backlight Control
• Moving Average CPM Counting with every 5 seconds update
• CPM counting: 0-300000 cpm
• Radiation Dose Range: 0.01uSv/h - 1.00mSv/h
• Radiation Dose Display Units: uSv/h or uRn/h
• Built-in USB Logging Support for CPM or Bq/cm2
• Conversion Factor Range: 0.0001 to 0.0250
• Presetable Alert: 100cpm - 5000cpm
• Classic Geiger Counter Sound
• LED indication for every Geiger Event
• Mute Button for Silent Operation
• Built-in Charger with Protection for Lithium Battery 3.7V
• Battery Indicator and USB Connection detect
• Battery Over-Discharge Limiter
• Supply Voltage: 3.7V Li-PO or Li-Ion Battery
• Supply Current: less than 5mA
• Operating time: 200 hours for 1000mAh Lithium Cell
• Radiation Logger PC Software
• Radmon Web Monitoring Support
• Geiger Bot Compatible (optional)
• Dimensions: 118 x 55 mm
• Shipping Weight: 250gr
• UPC Number: 634654240781
• SKU: RH-K-GK-5

“MyGeiger” ver.2.00 – is the second and the best edition of original DIY Geiger Counter module developed and designed by RH Electronics. For more technical details what's is new, please read product description and user manual below.

MyGeiger is high quality product with technical support! The product build with original electronic components supplied by DigiKey and others reputable sources, we do not use Chinese outlet.

Why choosing MyGieger ver.2.00 over others DIY Geiger Kits? MyGeiger is the high quality and professional Do It Yourself kit of dosimeter that can be used for home and educational nuclear radiation measuring. The project mostly intended for hobbyist, enthusiasts, students and scientists. The device is easy to use and has opportunity to configure the hardware for many popular Geiger tubes, such as SBM-20, LND-712, SI-29BG, SI-180G and more.

There are many others DIY Geiger Kits on the market today. All of them are good for their own reasons as amateur devices. When designed MyGeiger version 2.00 we tried to eliminate the design flaw related to all of others DIY Geiger Kits, such as high current consumption and HV fall under radiation load over 0.5mSv/h. MyGeiger ver.2.00 consumes only 5mA at background (other kits can drawn more than 30-50mA even at background); MyGeiger produce stable tube HV to ensure that tube works within plateau limits (other kits has HV fall under real radiation fast count down to 350V); MyGeiger was tested with SBM-20 and CT x-ray radiation up to 1700uSv/h 300000CPM so it promised to operate stable in real radiation levels up to 1000uSv/h and it excellent for standard device.

MyGeiger ver. 2.00 has carefully crafted electrical circuit diagram with improved software algorithm. As a result, now we have more professional and stable device with all important for portable dosimeter functions, but the project still kept easy for soldering. Even it has SMD components installed on PCB, you need to solder only DIP through hole parts.

Tiny power consumption: MyGeiger ver.2.00 has twice reduced power consumption, now it less than 5mA at background without backlight. At background radiation dosimeter can continuously operate during 200 hours with one 3.7V Li-PO 1000mAh. With one 3800mAh - 4200mAh Li-Ion it can operate during 30 days without additional charging. Tiny power consumption allows you using MyGeiger for pocket continuous monitoring day by day and charge battery when USB is available.

Built-in lithium charger: The board has built-in lithium charger with protection circuit which abolishes the need to carry a special li-ion charger. Indicator led will inform you about charge status. You can charge the kit’s battery directly from your computer or from any 5V power supply with USB jack. Another important new function is battery over-discharge limiter protection. When cut-off 3V battery voltage reached, device goes into sleep mode with about 0.5mA (500uA) power consumption. Then you need to power off the kit and connect USB for charging.

Battery Indicator and USB connection detect: New edition has improved battery indicator and USB connection detection.

Powerful MCU: MyGeiger ver.2.00 run on PIC18F2550 powerful microprocessor. It has better performance and bigger memory in compare to the older edition.

Tube high voltage: Now you can select tube voltage for 400V or 500V output. Even under high radiation load, or when battery is discharged, high voltage stays between tube plateau limits. This functions fully controlled by original software algorithm. The algorithm takes care about tube voltage under high speed count load and keep HV in recommended plateau.

New High Quality Graphic Display: The kit comes with high quality graphic LCD with blue backlight. The display has very tiny power consumption and it’s readable in daylight even without backlight. The display comes pre-installed on LCD Shield board.

Auto Scaling CPM Graph: Keeps all CPM readings for the last 5 minutes in graphical representation. The graph is auto-scaling and auto-scrolling with nice flow on the LCD.

Built-in USB support: MyGeiger kit has built-in USB support and you can log data to computer directly, without external TTL modules! The kit can log CPM (counts per minute) or Bq/cm2 data every 5 seconds.

Logging Software: For CPM data you can use our freeware “Radiation Logger” Windows application or freeware RadMon application. For Bq/cm2 logging we supply link to download third-party UART terminal program, it also freeware and easy to use.

Radiation Dose Units: MyGeiger ver.2.00 can displays radiation dose automatically in uSv/h, mSv/h or uRn/h, mRn/h units. You can switch between the Sv an Rn units with “-“ tact button, make a short push once. The counter will remember your choice in eeprom memory. Accumulated dose in uSv units is also presented on LCD. Each time you power the dosimeter, a new accumulated dose count starts.

Measuring Period: The dosimeter has moving average radiation counting with every 5 seconds data updates.

Maximum Radiation counting ability: Maximum radiation counting ability for DIY Geiger kit is correlation of 3 factors: software interrupt capability, high voltage stability and GM tube type. When talking about maximum radiation count, the common mistake is reporting only microprocessor counting ability. But it also important to take into consideration GM tube HV stability under maximum count load. SBM-20 capable to register up to 1.5mSv/h (300K CPM). This is realistic maximum level even the processor can count more CPM. MyGeiger was tested with SBM-20 and CT x-ray radiation up to 1700uSv/h 300000CPM so it promised to operate stable in real radiation levels up to 1000uSv/h and it excellent for standard dosimeter.

MyGeiger ver.2.00 mostly intended for home and laboratory usage, testing radioactive samples or monitoring gamma radiation level. Instead of SBM-20 you can connect any other compatible GM Tubes, such as popular 400V/500V alfa-tubes, just remember to change software settings to get right radiation readings.

Kit sound and Silent Operation: Kit has improved sound, very close to the classic Geiger counters clicks. You can mute the buzzer and led flasher by pressing “+” tact button for reducing power consumption and silent operation. Your settings are saved to eeprom memory.

Alarm: You can set CPM alert value during device start-up. Your choice is written to eeprom memory for next usage. Alert is settable with 10 cpm steps from 10-200 and with 100 cpm steps from 200-5000. When radiation levels becomes dangerous, the LCD backlight will be activated to inform you about high level. It’s possible to use alarm function with external relay module or with second alarm buzzer / led, additional wiring required in this case.

Geiger Tube Compatibility:

MyGeiger ver.2.00 support many 400V and 500V tubes. Default parameters pre-set is for SBM-20. Supported GM tubes are: SBM-20, STS-5, J-305, M-4011, SI-29BG, SBT-9, SI-180G, SBM-19, SI-21G, LND-712, LND-7317, LND-7312, Philips 18504. The kit HV source does not support external probes or long wires connected to the tube anode. Make all wires connections as short as possible inside an enclosure.

Computer Logging:

MyGeiger has built-in FTDI FT232RL virtual COM Port IC for USB logging. You need USB cable with mini-usb male connector. To allow logging please download and install FTDI FT232RL drivers:

http://www.ftdichip.com/Drivers/VCP.htm

Please download the latest version of PC logger software from our website: http://www.rhelectronics.net/store/radiation-logger.html

USB Serial Port Settings:

• Baud Rate: 2400
• 8 Data Bits
• Parity none
• 1 Stop Bit

Powering the Kit:

MyGeiger ver.2.00 requires one Lithium Polymer or Lithium Ion 3.7V battery. You can use branded or no-name types, just take care about connector polarity in advance. Main PCB has PH 2.00mm connector that fits polarity for this Li-PO battery from SparkFun https://www.sparkfun.com/products/339 You can use others 3.7V lithium battery types and capacity, but be carefull about right polarity.

It's recommended to use at least 800mAh or 1000mAh capacity, but it also possible to run on one 10440 AAA size Li-Ion. In this case you'll need to charge the battery every 2-3 days because AAA size batteries usually has 300mAh capacity only. Otherwise when running the kit with 3800mAh-4200mAh capacity battery you can use the dosimeter non-stop on background radiation count during 30 days.

Important point to understand that any additional modules, high radiation level or LCD backlight impact power consumption directly. That's why when using the dosimeter in high radiation area during long term period you need to carry additional batteries or have an option to charge from USB. Good advice for portable charging is solar powered cell phone charger. This devices has 5V output with USB jack.

Package Include:

1x High Quality Double Layer PCB

1x LCD Shield Board with 128x64 Display

1x PIC18F2550 Preprogrammed Microcontroller

5x 10K 0.25W Carbon Resistor

7x 1K 0.25W Carbon Resistor

1x 20K 0.25W Carbon Resistor

1x 2K2 0.25W Carbon Resistor

4x 47K 0.25W Carbon Resistor

1x 10R 0.25W Carbon Resistor

1x 4M7 0.25W Carbon Resistor

1x 300K 0.25W Metal Resistor

4x 100K 0.25W Metal Resistor

10x 10M 0.25W Metal Resistor

1x 2K Potentiometer 3362P

8x 100nF Multilayer Ceramic Capacitors

2x 22pF Multilayer Ceramic Capacitors

1x 150pF Multilayer Ceramic Capacitors

3x 10nF HV Multilayer Ceramic Capacitors

1x 100uF Electrolytic Capacitor

1x LED 3mm

3x 1N4937 Rectifier Diode

1x 4.000MHz Crystal HS-49S

1x Piezo Buzzer

1x 10mH Inductor Coil

3x Tact Switch Button

1x DIP Switch 2 Position

1x 8 Pin Female Header

2x 2 Pin Male Header

2x Jumper Cup

2x Tube Clip Holder

6x Metal Screw M3

4x M3 Standoff 12mm

1x M3 Standoff 15mm

1x 28 Pin Socket

1x MPSA44 HV Transistor

1x 2N3904 Transistor

1x LP2950 3.3V LDO Regulator

1x LM385B12 VREF IC

1x Printed Electrical Circuit Diagram

To our valued customers, please read purchase terms before you bid or buy!

Packaging: The product dispatched carefully packed into antistatic bag and sturdy carton box. We use only high quality and new packaging materials.

Technical issues and support: If you purchase this item you are agree that you have skills and tools to perform required DIY soldering (or de-soldering) and you know how to connect additional external components or modules. All project components should be installed and soldered in proper polarity with proper connectors. Any hardware/software modifications are not covered with warranty. If you have doubt it always better to ask for technical support before doing something. Please download and read carefully PDF user manual and product purchase terms. Almost all technical issues already described in the manual! If you have any technical issue with the product please contact us asap. Support provided by email. Please read support requirements here http://www.rhelectronics.net/store/support-request

Please read carefully product title, description and include list. Any questions are welcome. If you received broken or defective parts please contact us first, because we can resolve this problem in best way.

Handling time: 5 business days to process international orders required after receiving cleared payment. This does not include the number of business days the shipping service will take to deliver the item to you. We can upload a tracking number during handing time even before your package was transferred to logistic company for the delivery.

Shipping: We dispatch your order during 1-5 business day and will upload a tracking number. Take note, international shipping is more complicated and longer than domestic, that's why when you buy internationally it mean you are agree to wait for the package. For Economy International Delivery default stated time is 3-5 weeks. Some countries may take longer because of your country custom regulation rules or postal service. USA usually takes 2-4 weeks; Europe 1-4 weeks; Australia 2-4 weeks; Germany 3-4 weeks; Israel 3-7 days; Russian Federation 4-6 weeks; All other countries 3-5 weeks default delivery time. During checkout you can select available and preferred shipping method for you country. We offer Economy International Shipping and Priority International Express Delivery. If you cannot wait 30-35 days for the delivery please select faster and more expensive method in advance! We are not accept any claims for shipping time if you have chosen Economy Shipping! Economy Shipping mean we'll send your items with Air Mail, but we cannot promise it will be fast, because it depends on post service, flights schedules, weather accidents, custom processing and other things that out of our control. Priority Express Delivery promise you'll receive the order much more faster, so make your decision about shipping method before you pay. Priority Mail available for USA, United Kingdom, Canada, Germany, Australia. Other countries can select EMS Express.

Tracking: If you not received your package during 30 days please contact us first. Take note, we ship through state export account and not from post office branch. This is the reason why your package is trackable only after it was sent abroad from Israel export and not at the date of collecting or at the date we uploaded a tracking number. Online tracking system in Israel displays information with big delays, post website provide tracking info for reference only several days after your item was sent abroad! Please be patient for the delivery and contact us if you have additional questions about shipping.

Custom & Duty Fee: All international buyers are responsible to cover any possible custom fee or import tax that maybe applied at his/her country. We are obligated by export law of Israel to declare an order price as it was stated in your PayPal bill. German buyers, please remember when you buy that in Germany import custom rules require you to pay fee. We are not accept any claim because of your country custom regulation rules / delays / fee! Please contact your local custom office for more details about custom process and import tax.

You are responsible for any VAT, tariff, duty, taxes, handling fees, brokerage charges, customs clearance charges, etc. required by your country for importing consumer goods! There is no way for RH Electronics (the shipper) to predict your country's customs/fee habits, so be prepared to pay full VAT on the fully declared value of your order as well as any customs fees your postal system may charge you! If you do not pay the required brokerage fees, VAT, tariff, duty, taxes, handling fees, customs clearance charges, etc - we cannot issue any refunds.

Our shipping system is completely automated, and we cannot falsify customs forms. The customs forms will describe the cost of your order and contents as “Education DIY Kit for soldering”. We cannot mark orders as "gift" or lower the values.

Returns: Accepted if you not started to solder/use device. In original package, including all components. You'll need to cover return shipping cost.

Payment: Paypal only.