EVOM2

EVOM2 Epithelial Volt/Ohm Meter for TEER

S$3,800.00

EVOM2, 300523

  • The first instrument designed specifically to perform routine TEER measurement in tissue culture research
  • Manual TEER measurement of epithelial cells in 6, 12, 24 and 96* well plates
  • Battery powered and electrically isolated
  • BNC output for data acquisition system
  • Compatible with EndOhm chambers
  • Choose Resistance Range: 0-10 KΩ (EVOM2) or 0-100 KΩ (300523)

*96-well plate measurement requires an STX100 series electrode.

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Product Description

EVOM2, Epithelial Volt/Ohm Meter for TEER

Item#: Make Selection

EVOM2, 300523

  • The first instrument designed specifically to perform routine TEER measurement in tissue culture research
  • Manual TEER measurement of epithelial cells in 6, 12, 24 and 96* well plates
  • Battery powered and electrically isolated
  • BNC output for data acquisition system
  • Compatible with EndOhm chambers
  • Choose Resistance Range: 0-10 KΩ (EVOM2) or 0-100 KΩ (300523)

*96-well plate measurement requires an STX100 series electrode.

Options

Part # Resistance Range
EVOM2 0-10 KΩ
300523 0-100 KΩ

 

Making TEER Measurements to Determine Cellular Confluence

The EVOM was the first instrument designed specifically to perform routine TEER (Transepithelial Electrical Resistance) measurement in tissue culture research. EVOM2 is the next generation, redesigned for ease of use. The EVOM2 not only qualitatively measures cell monolayer health, but also quantitatively measures cellular confluence. The uniqeu electronic circuit of the EVOM2 and the included STX2 electrode detect the confluence of the cellular monolayer. When combined with WPI’s Endohm chamber, the EVOM2 can also be used to perform more accurate quantitative measurement or lower resistance measurements like trans endothelial electrical resistance measurements.

Features of the EVOM2

The isolated power source of the EVOM2 was specifically designed to avoid adverse effects on tissue and the formation of electrode metal deposits, even when it is plugged into a standard wall outlet. Now, the EVOM2 is always on when you need it. In addition, its rechargeable battery allows up to 10 hours of mobile use. The four and a half digit readout provides a range of 1-9,999 ohms. The included test electrode lets you calibrate the resistance measurements for an accurate reading every time, and the voltage meter never needs calibration. An analog BNC output is standard with the EVOM2, providing an output port for recording data or remote display of the EVOM2 output.

Chopstick Electrodes Included with the EVOM2

EVOM2 comes complete with the popular STX2 “chopstick” electrodes, 4mm wide and 1mm thick. Each stick of the electrode pair contains a silver/silver-chloride pellet for measuring voltage and a silver electrode for passing current. The small size of each electrode is designed to facilitate placement of the electrodes into a variety of standard cell culture wells.

 

More Information about the EVOM2

EVOM2 Remix – Read about the upgrades from EVOM and EVOMX.

VIDEO: How to Test Your EVOM2
VIDEO: How to Equilibrate Your STX2
VIDEO: Models and Methods to Evaluate Transport of Drug Delivery Systems Across Cellular Barriers

 

Videos

See the full-size video. See how to use and EndOhm chamber with an EVOM2 meter.

See the full-size video. In this video Mike shows you how to equilibrate your STX electrodes.

See the full-size video. In this video, you can learn how to test your EVOM2.

Membrane Voltage Range +/- 199.0mV
Voltage Measurement  0.1mV
Resistance Range  0-9,999Ω or 0-9,999KΩ*
AC Square Wave Current +/- 10uA nominal at 12.5 Hz
Power Internal rechargeable 6VNiMH
2700mAH batter with external
12VDCupply for recharging
Nomimal Battery Run Time 8 hours
Analog Output Millivolt Mode: 1mV = 10mV
Ohm Mode: 1Ω = 1mV
Dimensions 19x11x6cm (7.25×4.25×2.30″)
Weight 1.4kg (3lb)
Electrode Connection RJ-11 connector (telephone style)
Test Resistor 1000 ohm external
Environmental Range 10-38C (50-100F)
0-90% non-condensing relative humidity
Power Supply Universal 100-240VAC, 120VDC (5.5 x 2.5mm barrel positive tip), 850mA (WPI #800496)

* 300523 is the part number for the EVOM2 with 10X the resistance range. Note that display on this unit reads in KΩ, and the display on the standard EVOM2 read Ω.

 

3993  Electrode Adapter (for electrodes with 2mm pins)
2851 BNC cable, 6-ft
91736 NiMH Rechargeable Battery Pack
STX2 STX2 Replacement Electrode Set
STX3 Adjustable Electrode Set
ENDOHM-6 Endohm for 6 mm culture cup (24 wells per plate) and the
12 mm Millicell-CM
ENDOHM-12 Endohm for 12 mm culture cup (12 wells per plate)
ENDOHM-24SNAP Endohm for 24 mm and Costar Snapwell cup (6 wells per
plate)
STX100C STX100 for Corning Costar HTS Transwell-24
STX100M STX100 for Millipore Multiscreen CaCo 96-Well Plate
STX100C96 STX100 for Corning HTS 96-Well Plate
LAB-TRAX-4 4-Channel Data Acquisition System

The original EVOM was featured in this application video.

 

 

 

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Membrane Voltage Range +/- 199.0mV
Voltage Measurement  0.1mV
Resistance Range  0-9,999Ω or 0-9,999KΩ*
AC Square Wave Current +/- 10uA nominal at 12.5 Hz
Power Internal rechargeable 6VNiMH
2700mAH batter with external
12VDCupply for recharging
Nomimal Battery Run Time 8 hours
Analog Output Millivolt Mode: 1mV = 10mV
Ohm Mode: 1Ω = 1mV
Dimensions 19x11x6cm (7.25×4.25×2.30″)
Weight 1.4kg (3lb)
Electrode Connection RJ-11 connector (telephone style)
Test Resistor 1000 ohm external
Environmental Range 10-38C (50-100F)
0-90% non-condensing relative humidity
Power Supply Universal 100-240VAC, 120VDC (5.5 x 2.5mm barrel positive tip), 850mA (WPI #800496)

* 300523 is the part number for the EVOM2 with 10X the resistance range. Note that display on this unit reads in KΩ, and the display on the standard EVOM2 read Ω.

 

 

3993  Electrode Adapter (for electrodes with 2mm pins)
2851 BNC cable, 6-ft
91736 NiMH Rechargeable Battery Pack
STX2 STX2 Replacement Electrode Set
STX3 Adjustable Electrode Set
ENDOHM-6 Endohm for 6 mm culture cup (24 wells per plate) and the
12 mm Millicell-CM
ENDOHM-12 Endohm for 12 mm culture cup (12 wells per plate)
ENDOHM-24SNAP Endohm for 24 mm and Costar Snapwell cup (6 wells per
plate)
STX100C STX100 for Corning Costar HTS Transwell-24
STX100M STX100 for Millipore Multiscreen CaCo 96-Well Plate
STX100C96 STX100 for Corning HTS 96-Well Plate
LAB-TRAX-4 4-Channel Data Acquisition System

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