Monitor your batteries, loads and charging. A voltmeter is
usually connected with small wires and fuse to the battery or distribution box.
It can be mounted near the control box or in a convenient to read location.
Ammeters are connected in series with a battery lead. Digital meters are easy to
DC Analog Meters
2.3” square face, mounts in 2” round hole.
Voltmeter For 24 volt
battery systems, expanded scale reads 22-28 volts. M103
$30 Special $9
Amp meter 0-5 amps 1 lb
$30 Special $25
|Induction DC Ammeters No
electrical connections or leads to hook up. Simply place meter back against
a single wire lead for a reading. Can be used on inverter, welder,
automobile starter or generator, battery charger, etc.
663 75-0-75 amps,
M129 1 lb
Battery Monitor 12 - 48 volts Battery Fuel Gauge
Monitors: Volts - Amps - Watts - Amp Hours - Percent Full
Recommended for homes, cabins, boats, RV’s.
Our most popular battery meter.
Lightning Protector Circuit.
More compact model with surface mounting box
M201RV 2 lbs
A quick look at the TriMetric Battery Monitor and you will know how much power is left in your
battery. This meter can help you operate your energy system more effectively for
better battery life and power. It shows and keeps track of amps going in or out
Charge light shows when battery is charging.
Battery reminder light shows when:
1. Battery should be
recharged. 2. Battery needs equalize charge.
3. Battery voltage is too low.
Extra memory features shows total days
since full charge, amp hours removed since full charge, total amp hours removed
from beginning— up to one million, maximum and minimum battery voltage since
last reset. Also retains last
5 days of maximum battery voltage and minimum charging amps which is helpful in
troubleshooting battery system.
Helps save valuable energy by letting you see how much you're
using. Use "amps" reading to educate users about how much energy different
electrical loads draw. Check that all loads are really off when you think
they're off. Check for "phantom loads" small loads that steal power 24 hours per
day. Keep informed about how much energy you have left in your battery system.
Reduce generator use by knowing when you can efficiently shut it off because
batteries are approaching full charge. Meter can be mounted almost anywhere it
is convenient to read—even several hundred feet from the shunt which you locate
at battery’s negative lead. Use your own wire or the 50' Cable listed below. 1 year warranty by factory. 3.2” x 4.3” x 1.4",
A shunt is
required for the TriMetric Battery Monitor. We have two sizes. 500 amp 50 mv shunt is the most
popular shunt. Systems with inverters usually need the 500 amp shunt. This shunt
allows the meter to read down to 0.1 amps. A 100 amp
shunt is available for systems with smaller amp loads (under 70 amps to prevent
overheating). Accuracy is the same with
either shunt, but the 100 amp shunt allows an extra digit of amp resolution -
down to 0.01 amps.
for the TriMetric Battery Monitor Please provide forced ventilation if shunt
temperature exceeds 293 degrees Fahrenheit (145 degrees Centigrade).
500 amp, 50 mV (335 amps for continuous
M220 2 lbs $35
100 mV (67 amps for continuous use) M221
1 lb $33
with fuse and ring connectors on one end. 22 gauge 4 wire
twisted pair. This cable makes it simple to connect meter to shunt and to
the battery. M204
3 lbs $35
TriMetric Solar Charge Controller, 30 amp, 12v/24v
to above TriMetric Meter
For 12 or 24 V battery systems using
Liquid Electrolyte batteries or with lower maintenance AGM sealed or Gel
A precision, high
efficiency PWM (pulse width modulated) Solar Array Battery Charge
Controller. Designed to maximize the life of your batteries by allowing the
flexibility to adjust solar charging closely according to the way your
battery manufacturer has specified. High performance depends on being
connected to a TM-2030 TriMetric Battery Monitor.
Controller can operate without being connected to the Battery Monitor with
The SC-2030 is a "PWM" (Pulse width modulated) type that is
simpler and less costly than a "MPPT" (Maximum Power Point Tracking) type
charger. It can be as efficient—provided it is used with panels properly
matched to the batteries as described. With this charger you may be able to
get more solar performance at the same cost by purchasing another solar
panel instead of a more expensive MMPT solar charger.
Battery Temperature Sensor with
Use with PV Modules with 36 cells for 12 battery. For 24 volt
battery, series connect two 36 cell PV Modules or use 72 cell Modules.
Controller protects itself and will limit current to 30 amps even if PV
Modules are producing more than 32 amps.
Not supplied is a Four-conductor telephone wire to connect
charge controller to the battery monitor. It can be up to 100 ft. long.
These are common and are normally available locally.
3" x 5-1/4" x 2-3/4". Click on
Manual to see Charger Controller instructions.
3 lbs $160
12, 24,36, 48 volt
Low cost and simple to use. Colored LEDs show approximate
state of charge (based on battery voltage) in 10 percent increments. They
are red for low, amber mid-range and green for upper range. On the left are
3 LEDs: green for battery fully charged recently, yellow for not fully
charged for a week, and red for not fully charged for 2 weeks. Install
indoors in dry protected area within 30' of battery. Simple connection to
battery positive and negative. Maximum input voltage is 70 volts. Average
consumption current at 12 volts is 15mA. Reverse polarity protected up to
100 volts. Automatic voltage selection. Internal jumper to select flooded, AGM or Gel battery type. 4.75"
x 3.76" x .85"
MNBCM 2 lbs $70
where your 120 volt AC power is going so you may reduce waste.
Kill A Watt
Electricity usage monitor
Watts, Volts, Amps, Hz, Power Factor, Volt-Amps, Elapsed Time
The cost of electricity can really hit
your where it hurts. Now with Kill A Watt you can reduce energy costs and
identify the real energy abuser's. Simply plug your appliances into Kill A Watt
and it will assess how efficient they really are. Large LCD display will count
consumption by the kilowatt-hour just like your local utility company. You can
figure out your electrical expenses by the day, week, month, or year. Evaluate
the quality of the electrical power provided by your utility company by
monitoring voltage (Volt), line frequency (Hz) and power factor (VA). Perfect
for detecting voltage drops and brownout conditions before they damage delicate
Find parasitic loads and wasted energy. Monitor refrigerator, freezer, microwave
oven, toaster, mixer, clocks, TV, VCR, radio, stereo, lights, fans, garage door
opener, computer, monitor, printer, copier, cordless phone, battery charger,
clothes washer, gas clothes dryer, vacuum cleaner, etc.
The knowledge you gain from Kill A Watt can save you thousands of
dollars. Maximum voltage is 125 VAC, maximum current is 15 amps, maximum power
is 1875 VA, 0.01 to 9999 KWH maximum, 9999 hours maximum. Counters will reset to
zero when they reach maximum. 5-1/8" x 1-5/8" x 2-3/8". Made in China.
2 lbs $45
Digital Kilowatt Hour Meter
These are like the meters commonly used on houses. Easy to read mechanical digital
display. Use to monitor inverter outputs, appliances, water heaters, air
conditioners, etc. Mounting sockets are new, meters are reconditioned and
120 volt AC, 100 amp
M132 9 lbs
240 volt AC, 100 amp
M133 9 lbs
240 volt AC, 200 amp
M134 9 lbs
100 amp Socket, round housing, 1" threaded hub on top
and bottom, 4 terminals, ground. 7" x 3" M138
4 lbs $19