led counter for sale, brand-new and used.

The Geiger Kit allows you to run most GM tubes, and displays and outputs the counts. It uses an Arduino compatible ATmega328P and is open source. This is the original DIY Geiger Counter Kit with the v5 circuit board that has constantly improved over the years.

You are bidding for the new, fully assembled, microprocessor-based ionizing radiation counter with Black-on-Green LCD, threshold LED, button-and-Buzzer snap-on shield. This listing is without the Geiger–Muller tube, TTLSerial<>USB adapter and battery. So in order to use it you need to have a Geiger–Muller tube which works at voltages up to 525V.

NEW Memory Time Counter J0201-4B This is an Auction for a NEW in the Box, Memory Time Counter, Model J0201-4B. The counter is the intelligent multi-purpose instrument of latest design and its core is SCM. It can be applied to count, time and measure the acceleration, gravity acceleration and cycles variables when used with free-falling instrument, flume-track and air-track together.

Model: RBC-1003 It has worked flawlessly for me , I no longer have a use for it. Item specifications: Brand Royal Sovereign Model RBC-1003 Automatic currency counter with UV (ultra violet) and MG (magnetic) detection

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Royal Sovereign Bill Counter w/Digital Display & Counterfeit Detection RBC-1000 with Royal Sovereign RBC-1000 Remote Display for 1000 Money Bill Counter. Product Overview The RBC-1000 Digital Cash Counter makes it easy and fast to count money. With features for counterfeit detection you can not only count money quickly but also securely.

Detecto AS-334D - Point of Sale Counter Model Scale w/ LED Display,35# Capacity. No manual but may be available on-line or through the manufacturer. Scale only weighs in pounds and does not have the extra cable to hook up to computer.

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This is a fully functional HP Frequency Counter, good to 80MHz, tested and guaranteed to be as described or a prompt and full refund of your purchase price, including shipping! Not seen in the photo are a couple of de-lamination "scratches" that are real common on these old but very fine pieces of test equipment. The HP 5381A frequency counter is a superb price/performance combination unit.

The DMMCheck Plus is a battery powered device that checks seven important functions on a DMM: AC and DC Voltage, AC and DC current, Resistance, Frequency, and Duty Cycle. It you have a DVM or DMM that has questionable accuracy, the DMMCheck Plus can give you the confidence you need before relying on your test equipment. Provided on the small (3"W x 3"L) circuit board are the following circuits: Resistance : Four 0.1%, 10ppm/C precision resistors are included: 100?, 1.00K?, 10.00K?, and 100.0K?

B&K 1801 10Hz-45MHz Frequency Counter NOT WORKING. Sold AS-IS for parts. In very nice physical condition.

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Amazon Overstock Item - Box has been opened - I tested and it works. Probably a return but looks new in original packaging. Manual is missing but it is available online Fast Free Shipping Summary This bill counter is equipped with UV detection to detect fake bills without UV mark.

NOW WITH LARGEST DETECTOR AREA, 10 SEGMENT ALPHA BETA GAMMA PANCAKE TUBE SBT10A ! You are bidding for the new, fully assembled, tested and seller pre-calibrated microprocessor-based ionizing radiation counter with LCD-threshold LED-button-and-Buzzer snap-on shield (battery, which is shown in the above picture - not included). USB<->TTL serial converter based on SILABS CP2102 chip is included for connecting the board to PC.

NOW WITH ONE THE BEST ?-DETECTING, 4-SEGMENT ?,?,? RUSSIAN-MADE PANCAKE TUBE SBT11 ! You are bidding for the new, fully assembled, tested and seller pre-calibrated microprocessor-based ionizing radiation counter with LCD-threshold LED-button-and-Buzzer snap-on shield (battery, which is shown in the above picture - not included).