• iSeries Instruction Manual and Users Guide for Version 2025-6x2-2 (after March, 2021 - Circuit Board should be labeled "Rev G"). This guide will also have the troubleshooting information needed to handle most errors and problems with set-ups.
• Older iSeries Instruction Manual and Users Guide for Version 2025-6x2-1 (Between 11/2014 & 3/2021 - Circuit Board should also be labeled "Rev G").
• iSeries Instruction Manual and Owners Guide for Version TE2011 Rev A - older 4x4 version (prior to November, 2014 - Circuit Board should be labeled "Rev F" or earlier)
• iSeries Manual for the earliest version created in 2008. This is for the original 4 standard tank and 4 propane tank version.
• The iSeries can now accommodate all types of resistive sensors (up to 2 per panel). If you have a resistive sensor with the Low ohm setting for the full level and the High ohm setting for Empty (ie. 0-240 where 0 is Full and 240 is Empty) then click here for the modified calibration instructions for those sensors. If your sensor has the Low ohm setting for Empty and the High ohm setting for Full then use the calibration instructions laid out in the manual.
• Click here to watch the installation video of the MODA sensors on the tanks and the iSeries panel.
  (NOTE: click here to watch video directly on YouTube if link above isn't working)
• Click here to watch the set-up and calibration video for the iSeries Tank Monitor Version TE2011 Rev A. (New set-up video is coming soon for the 2025-6x2-1 Version)
  (NOTE: click here to watch video directly on YouTube if link above isn't working)

iSeries Wiring Harness with Diode Modification can be ordered on the Order Products page.
If you would like to have 2 panels that read the same sensors (ie. you want to set a panel in a different area for reading when you are filling or emptying your tanks) you will need a modified wiring harness for each panel. This diode harness will prevent voltage back feeding into the other panel when it is checking the tanks.

This modified harness is used if you have multiple panels going to the same sensors. You can also use this modified harness if you have a current wiring set-up that only has 1 wire from each tank back to the panel and you can't run an additional wire. Please call tech-support prior to purchasing this harness to discuss set-up for this method and see if it will meet your needs.

Pricing is $25 per wiring harness to modify them on an existing order, or $35 if you are ordering it by itself.

703 – Smart 3 Tank Monitor

• 703-Smart 3 Tank LED Monitor Panel Installation Guide and Owners Manual
• 10 Volt Inline Regulator Adapter Data Sheet
• Wiring harness color instructions for the 703 Smart 3 Tank Monitor
• If you have this monitor and are noticing that the LED indicator levels are changing when your input voltage changes, then we have a solution for you. The older designed panels were not designed with a voltage regulator at the voltage input. We now have an inline 10 volt regulator that we can send you to adapt your system to this regulation. Please give us a call at (541) 610-0401 or order it online through the order page under Other Accessories and Repair Parts. It is called "10 Volt Inline Regulator Adapter. Shipping will only be a couple of dollars if you select to have it sent via US Mail First Class. After you have installed this regulator, you will need to recalibrate your panel.
• $15 - 10 Volt Inline Regulator Adapter - to regulate the input voltage to 10 volts on the older style boards (Smart Mini & 703 Smart 3 Tank). If you are adding this after your system is already set-up, you will need to recalibrate your panel. If you have purchased your system within the last year, please call us at (541) 610-0401 to verify purchase date and there will be no charge for this adapter.

Smart Mini

• Smart Mini Installation Guide and Owners Manual
• 10 Volt Inline Regulator Adapter Data Sheet
• If you have this monitor and are noticing that the LED indicator levels are changing when your input voltage changes, then we have a solution for you. The older designed panels were not designed with a voltage regulator at the voltage input. We now have an inline 10 volt regulator that we can send you to adapt your system to this regulation. Please give us a call at (541) 610-0401 or order it online through the order page under Other Accessories and Repair Parts. It is called "10 Volt Inline Regulator Adapter. Shipping will only be a couple of dollars if you select to have it sent via US Mail First Class. After you have installed this regulator, you will need to recalibrate your panel.
• $15 - 10 Volt Inline Regulator Adapter - to regulate the input voltage to 10 volts on the older style boards (Smart Mini & 703 Smart 3 Tank). If you are adding this after your system is already set-up, you will need to recalibrate your panel. If you have purchased your system within the last year, please call us at (541) 610-0401 to verify purchase date and there will be no charge for this adapter.

Ultra 8

The Ultra 8 has been phased out. We are still supporting it with repairs and reprogramming but suggest that if you need a replacement panel, to upgrade to the iSeries system. It is the same size as the Ultra 8 and can even use the same wiring harness if you don’t want to swap out the wires. The wire colors are different but the layout is the same.

If you want to upgrade to the iSeries but want to keep your same wiring harness, please select the iSeries panel - Ultra 8 upgrade option. This will come with a small modification to the power switch so you don't have to change out your wiring harness. It will not come with a new wiring harness. You will need to program the iSeries in the same tank layout as the Ultra 8 so the wires will be going to the correct tanks. If you do not know what your current Ultra 8 tank layout is, and it was an original OEM install, we may be able to find that information for you if you give us a call at (541) 610-0401.

• Ultra-8 Calibration Instructions (version 4.0 for models manufactured after 10/15/03)
• Ultra-8 Calibration Instructions (for versions prior to 10/15/03)
• Ultra-8 Display Panel Users Guide (version 4.0 for models manufactured after 10/15/03)
• Ultra-8 Display Panel Users Guide (for versions prior to 10/15/03)
• Wiring diagram instructions for the Ultra 8
• Ultra-8 Customization Form

Sometimes the LCD display will go out on the older Ultra 8 systems. If the system seems to function properly you are just getting odd characters on the display, this may be your problem. You can purchase a replacement display for $35 on the order page at the bottom under accessories.

HUNTER ordered Ultra 8 systems with their own custom wiring colors. If you have a Hunter Ultra 8 system, click on the link below to see how those colors correspond with our Ultra 8 system as well as our upgraded iSeries panel.

• HUNTER Ultra 8 Wire Conversion Chart

Tanks with "Step Out" or
"Ledge" Modification

If you have a tank with a "step-out" or "ledge" like the one pictured, and the ledge is on the side that you want to install the external MODA sensor, then you will need to have a Copper Wire Jumper Kit sent to you. These are $7 per tank and you will need to specify how long the wires need to be for this kit. It is better to be just a bit long, then a bit short. Click here for the data sheet on how this Jumper Kit needs to be installed.

• Data Sheet on how this Jumper Kit needs to be installed.

Exterior MODA Sensor

• Exterior Moda Sensor Installation Guide
• Moda Sensor Repair Kit Installation Guide
• Testing Procedures for your Moda sensor.
• Older Snake River Electronics MODA and AutoCal Sensor Owners Manual
• Click here to watch the video of the iSeries installation guide which covers the installation of the MODA sensors on the tanks. The MODA sensor installation is the same for all our tank monitors.
  (NOTE: click here to watch video directly on YouTube if link above isn't working)

Due to its non-invasive nature, the MODA sensor module is simple to install. It is installed by applying 2 vertical strips of aluminum tape to the side of the tank, then sticking the MODA copper patches over them. Installation is completed by sticking the module itself to the tank then extending its wires to the display. Click here to find out how our sensors work.

Custom Made Interior PVC
Sensor Rod

• PVC Rod Instructions
• Testing Procedures for your PVC Sensor rod.

Custom Made Aluminum Diesel
Fuel Sensor Rods

• Diesel Sensor Rod Hole Pattern
• Diesel Sensor Rod Calibration Instructions

Resistive Sensors

• If you have resistive sensors that you would like to add to the iSeries system, you can add up to 2 per panel. (ie. WEMA sensors, etc.) These resistive sensors can be installed onto tanks 7 & 8 only. Sensors that have the Low ohm setting for Empty and High Ohm setting for full can use the standard calibration directions in the manual. (ie. 0-240 where 0 is Empty and 240 is full)
• If you have a resistive sensor where the settings are opposite (ie. 0-240 where 0 is Full and 240 is Empty, like is standard on most WEMA sensors) then click here for modified calibration instructions on those sensors.

Troubleshooting
for Testing Panels and Sensors

• Most troubleshooting needs to be done using a volt meter. If you do not have one, you can get them at any electronics shop or order one on our order page.

Older 102 - 3 and 4 Tank Monitors
with Dial Pot Calibration.
(These panels are no longer available.)

• Older Dial Calibration Instructions for the Mini, LED & LCD-4 Snake River Electronics Panels
• Standard 3-4 Tank monitor panel Owners Manual.
• Wiring Diagram for the 102 - 3 tank with or without LP monitor
• Wiring Diagram for the 102 - 4 tank monitor
• Older 102 Original Installation Instructions from Larson Electronics
• Older 102 Original Technical Help Manual from Larson Electronics
• If you have this monitor and are noticing that the LED indicator levels are changing when your input voltage changes, then we have a solution for you. The older designed panels were not designed with a voltage regulator at the voltage input. We now have an inline 10 volt regulator that we can send you to adapt your system to this regulation. Please give us a call at (541) 610-0401 or order it online through the order page under Other Accessories and Repair Parts. It is called "10 Volt Inline Regulator Adapter. Shipping will only be a couple of dollars if you select to have it sent via US Mail First Class. After you have installed this regulator, you will need to recalibrate your panel. This regulator will disable your battery monitoring function as it will never read over 10 volts.
• If you have this panel and it is working fine but your buttons have broken through, you can purchase a custom made sticker overlay for $10. Please email a picture of your panel to tadams@tech-edge.com and then place your order online or over the phone at (541) 610-0401. The item you will be selecting is under the Other Accessories and Repair Parts on the order page. It is called "Custom Sticker overlay".

Smart 102 - 3 and 4 Tank with Push Button Calibration

• Standard 3-4 Tank monitor panel Owners Manual (This manual is actually for the dial calibration method above but everything else is the same.)
• Wiring Diagram for the 102 - 3 tank with or without LP monitor
• Wiring Diagram for the 102 - 4 tank monitor
• Smart Chip Calibration Instructions for Smart 3 and 4 tank panels with Horizontal Tank Buttons
• If you have this panel and it is working fine but your buttons have broken through, you can purchase a custom made sticker overlay for $10. Please email a picture of your panel to tadams@tech-edge.com and then place your order online or over the phone at (541) 610-0401. The item you will be selecting is under the Other Accessories and Repair Parts on the order page. It is called "Custom Sticker overlay". This regulator will disable your battery monitoring function as it will never read over 10 volts.

Nautical 21

• Installation Instructions and Owners Manual
• Calibration only instructions

Older ECP Larson Electronics Panel

• ECP Tank Level Original Larson Electronics Manual
• ECP Technical Help and Troubleshooting Guide from Larson Electronics

Older Acu-Gauge NC-1 Larson Electronics Panel

• NC-1 Acu-Gauge Original Larson Electronics Manual
• NC-1 Acu-Gauge Technical Help and Troubleshooting Guide from Larson Electronics

Bilge Buddy

• Bilge Buddy Manual

For those of you who have Larson Electronics panels that are older than 1996 and are not shown here please read the below note.

Back in 1996, the whole tank monitoring system was revamped. The way the signal was sent to the panel was changed to get rid of some bugs. Because of that, nothing before 1996 is compatible with anything after 1996. The company has also changed hands 4 times since then and none of the information regarding those old panels made it to us.

That being said, if you have a panel that is older than 1996 but looks similar to one of the ones above, we have come across some anomalies that don't fit the pattern and we are able to help. The best way for us to know for sure is for you to send a picture of the front and back of the panel and the circuit board. We can then determine what we can do to help your situation out. Please send the pictures with your contact information to techsupport@tech-edge.com.

If we cannot replace or fix your panel, we can discuss ways that we might be able to work with what you have to get a new system into place. We suggest watching the Features and Benefits of the iSeries panel video to see what you can upgrade to. (NOTE: click here to watch video directly on YouTube if video link isn't working)

Thank you, Tech-Edge Manufacturing LLC