A new and improved version of the Check Master is now available! It combines all the best features of the original Check Master with the Heli Master, so you can test your planes and helis with one simple device.

Features -
- Precision pulse generator to test servos
You can test any brand of servo for movement, deflection, neutral point and band width. The unit's internal battery powers your servo during testing, so you won't need to hook your servo up to a second battery. The Check Master 2 also displays the current (amps) your servo is drawing. This makes it easy to choose the right RX battery for your plane or heli - just add up current draw of all your servos.
- Propeller tachometer
For your planes - Precision optical tachometer up to 6 blades and 34000RPM. Up to 10 incidental RPM can be stored in the unit's memory.
- Rotor blade tachometer
For your helis - Precision tachometer up to 4000RPM. Rotating-drum type slit synchronize system. Up to 10 incidental RPM can be stored in the unit's memory.
- Temperature sensor
Be sure to pick up a temperature sensor cable (not included) so you can take advantage of this feature. Ideal for testing all power system components.
- Automatic power off and back-light off
To make sure you won't be left with a dead tester at the worst possible time, the Check Master 2 powers off when there's no user action taken for 10 minutes. The back-light will go off after one minute of inaction, helping provide even longer battery life.

Digital Servo and Receiver Current Meter lets modelers check current flow between multiple linkages. It will monitor overall voltage between the battery and receiver charge current between the charger and charge jack or current draw when used between the receiver and servo. Modelers can even monitor discharge current between the charge jack and battery cycler. All voltage information is displayed on the easy-to-read digital display and can be switched between volts or amps. The unit comes wired with universal connectors allowing to be used with all popular systems.

The Thunder Power 2-10 cell Smart Balancer will Auto balance (active if more than 0.005V imbalance) Lithium packs thus you may achieve higher currents and optimum charging conditions on all cells. This conditioner forces all cells which are part of a pack to hold the same current which translates into a high capacity pack. A balanced pack charges more quickly and most importantly will give you a longer flight time.

Checking the receiver pack ( for Helis which use a separate receiver pack ) is a must to insure proper TX / RX range and to prevent lock outs due to a weak receiver battery pack. The checker will indicate battery capacity using simple to read LED indicators.

The rugged and compact Ace R/C Digital Voltmeter is designed with the R/C hobbyist in mind. It checks all batteries up to 20 volts and indicates the voltage in a clear hi-vis liquid crystal display. It also puts a load on both the receiver and transmitter battery so the voltage reading provides a valid determination of whether you have enough energy for another flight or run. A go/no go green/red LED gives a quick visual reference of charge condition. Comes with test probes. Requires a 9V transistor battery. A leading cause of crashes are insufficient charge or discharge batteries. Evaluation of battery voltage before take off will such a mishap. The Volt master will perform this evaluation in an easy and accurate way. It measures voltage of your receiver and transmitter under a discharge load to provide a valid measurement of whether or not there is enough energy for another flight. Because there are five expanded voltage ranges available the reading is extremely accurate and will measure 4 5 8 9 and 10 cell packs which includes your 12V Flight Box Battery.

The number one cause of crashes is bad or discharged batteries. Evaluation of battery voltage BEFORE each flight or run can prevent such a mishap. The Voltmaster will perform this evaluation in an easy and accurate way. It measures voltage of your receiver and transmitter under a discharge load to provide a valid measurement of whether or not there is enough energy for another flight. Because there are five expanded voltage ranges available the reading is extremely accurate and will measure 4 5 8 9 and 10 cell packs which includes your 12V Flight Box Battery. Connection to the batteries is done via Ace's standard adapter cables.

This analog Novatech checker is an accurate voltage and current checker. It is a vital tool to valuable setup information such as battery capacity current draw power load consumption and more. The gadget comes equipped with pre wired input and output leads as well as the opposite end connectors so you may make your own extension using the type of connectors you use ( such as Deans Anderson or others ).

The Mini Clamp Meter / Pocket Size is a High Resolution 0.01A voltage / amp meter for both AC / DC with a built in measurement clamp. It features a Auto range True RMS (DE - 3110R / 3112R) Data hold and it is very accurate. Comes with leads and build in clamp. LCD display and 3 3/4 digits 4300 counts ( very precise ).

Don't be in the dark information is power and this watt meter gives you just that lots of data in a cool compact casing. The watt meter allows for detailed information on electric loads of all electronic components as well detailed current and voltage consumption in addition to many other usefull features.

This EB 2001 Digital Battery tester is inexpensive and will give out and accurate reading of all DC batteries ranging from 4 volts to 13 volts DC. The checker comes with generic pin plugs so it is easy to hook onto wires or onto alligator clips. Very accurate with a large LCD display this battery checker will always keep you informed.

The E-flite Power Meter is designed for in-line monitoring for Volts Amps Watts and Capacity based on the MODE you select to display on the digital LCD screen. For pilots who fly any electric airplanes and desire to accurately set up their airplanes for maximum performance. The Power Meter does not include connectors so you can customize the meter to fit your needs.

The SA-10 operates from 4.5V to 6.0V. It can be powered from NiCd NiMH and regulated LiPo RC flight batteries and from ESC's in electric aircraft. It works with all brands of RC servos both analog and digital. The SA-10 simulates receiver output with 1ms to 2ms pulses to a servo and measures transmitter pulse width with 0.010ms precision. Test servos in models or on the bench. Eliminate unknowns that may be caused by transmitter or receiver. Servo analyzer and transmitter pulse width meter for use with radio control systems. Set up your Helicopter with precision test out servos with adjustable speed cycling test your transmitter joysticks and trims for accuracy and much more

This cool gadget displays voltage and charge level Discharge function has current load adjust from 1-3 (slow to fast) amps Red (danger) orange (caution) and blue (safe) zones on the circular graph clearly indicate voltage status Auto shut off and built-in fan Accepts Futaba J style input plug Uses receiver package voltage to operate Can be used with 4.8 6.0 and 7.2V packs (not with 8.4V or 9.6V TX) One year limited warranty. Use the BR-2000 battery checker in your workshop and at the flying field to check or discharge 4- 5- or 6-cell Ni-Cd and NiMH battery packs. It features a large easy-to-read LCD that has numeric and graphic (a gas tank) displays to show voltage. Housed in a sturdy plastic case that has retractable legs the easy-to-use unit has a start button on the front panel. On one side are the discharge-current adjustment dial (1 to 3 amps) the battery-voltage selector (4.8 6 or 7.2) and the battery connection port. An adjustment screwdriver and a battery connection lead with Futaba connectors are part of the package. To use the checker simply select the proper voltage connect the pack and press the start button. The voltage will be displayed (red background) for about 20 seconds. To switch to the discharge function hold the start button down for 3 seconds. The unit's internal cooling fan will start and the indicator will display the discharge voltage (blue background).

The High precision voltage testing of transmitter and receiver battery packsand will also Test batteries under simulated servo load for accurate readings. The Meter is 4.8 or 9.6 volt for use with receiver or transmitter packs and other batteries which fall with in the range. Comes with a 2-year warranty.

Expireinceed Modelers know that the only way to be sure if you have enough charge left to safely get in that last-minute flight is with an accurate digital voltmeter. In fact most experi-enced modelers won't go to the field without one. Another indispensable field accessory is a tachometer which is used to check and compare engine performance set needle valves and conduct various other performance functions. Now Hangar 9 has consolidated these two field accessories into one convenient compact unit. A great combination Hangar 9's new Digital Voltmeter and Tachometer (DVT™) combines a digital voltmeter with a built-in load for 4 and 5 cell receiver packs and a 9.6 volt transmitter pack with a tachometer that accurately reads in 10 rpm increments for 2- 3- or 4-bladed props. The tachometer function reads up to 29 000 rpm in 10 rpm increments. Plus the unit automatically turns itself off after two minutes if not in use saving the included 9V battery. The voltmeter function features a switch that allows both JR and Futaba polarity transmitters to be selected so all brands of transmitters can be used. The DVT places a 240mA load on 4 cell packs a 300mA load on 5 cell packs and a 400mA load on 9.6 volt transmitter packs. Plus a low-battery indicator shows when the included 9V battery is low.

This Tach will measure the rotations per minute (RPM) of the Heli's rotor speed. It includes option for 2 3 or 4 blade configurations so it can be used for FP / CP / Flybarless setups.

The Digital Variable Load Voltmeter / watt meter precisely simulates typical in-flight loads on a receiver battery and other components and displays real time voltage so modelers can be sure they have plenty of power to fly. Modelers can simulate three different loads: .5A 1A or 2A. All voltage information is clearly displayed on the units digital LCD screen. It will measure voltage from as low as 3.5V to as high as 10V and is compatible with all popular 4- and 5-cell receiver packs. Monitors battery voltage before flight Three selectable loads: .5A 1A or 2A Accurate digital LCD readout displays both current load and real-time voltage Works on 4- to 8-cell packs Universal lead.

Extra inexpensive Peace-of-mind for pilots With 7 LEDs providing instant accurate receiver battery voltage status the VoltWatch is a super accessory for any modeler. Pilots simply mount the VoltWatch anywhere the 7 tiny status lights can be seen. At only 1/8 inch thick and weighing only 1/10 of an ounce the VoltWatch can be mounted almost anywhere on any size plane.

The VoltWatch 12V Field Power Monitor provides convenient affordable peace of mind for busy modelers a quick way to check field battery voltage levels. Field batteries are usually buried down deep inside a field box. This makes it difficult to get to the battery's terminals to measure battery voltage to see if the battery needs to be charged or not. By connecting the input lead on this unit to the battery then mount this unit to the outside of the field box you'll never have to worry about digging down through your box to get to your field battery anyway. Just push a button read the voltage LEDs and that's it.

Don't risk loosing transmission to your R/C Model due to local interference or because some other near by modeler decided to use the same channel. Protect your investment. The 72MHz Frequency Checker automatically scans all 50 R/C frequencies in the 72MHz band and identifies which are currently in use. Turn on the power switch and it automatically scans all channels in the 72MHz band within 15 seconds. When a channel is in use it's own LED will stay on until the channel is clear again. Sized to fit easily in a pocket or flight box. Operates at a range of up to 300 feet.

A markedly better Voltmeter! Airplane and Heli modelers will enjoy the expanded capability the new MKII offers it measures 4.8V AND 6.0V receiver batteries as well as 9.6V Tx packs. The more detailed meter shows 4- 5- and 8-cell scales with dual descriptors for each as well as red and green zones for each to show safe/unsafe voltage levels. A mirrored area on the meter ensures the proper needle viewing angle. The MKII unit is 25% smaller than the original and lighter as well so it takes up less space in a field box or on a workbench. Simulates a very realistic 225-275mAh load for testing batteries.

Other voltmeters may have LCD technology but none of them utilize it as effectively as the Hobbico Digital Voltmeter MkIII! With just a touch of your finger all of the important information you need is spelled out clearly on the custom-designed readout—including OK and RECHARGE status indicators when checking battery packs (a key convenience feature). Also displayed are input settings for either 4.8V 6.0V or 9.6V packs and easy-to-read 1/2-inch high voltage measurements. The screen also alerts you to low internal battery power and negative polarity situations. It's all of the practical features you want in a comfortable uncluttered design!