

| InstruTech Quick Product Overview | ||||||||
|---|---|---|---|---|---|---|---|---|
| Model | Vacuum Gauge Type | Measurement Range | Controller | Display | Analog Output(s) | Set Point(s) | Digital Output(s) | Compatibility |
IGM 401 "Hornet"![]() |
Miniature Ionization | 1 x 10-9 to 5 x 10-2 Torr 1.3 x 10-9 to 6.7 x 10-2 mbar 1.3 x 10-7 to 6.7 Pa |
Built-in with Display | 3 digits plus 2 digits exponent OLED Units in Torr/mTorr, bar/mbar, Pa / Kpa |
(1) log linear | 1 Relay - SPDT | RS485 Open Collector transistor for degas and filament on/off status | Direct drop-in pin-pin plug-compatible for the GP* Micro-Ion® gauges. |
IGM 402 "Hornet"![]() |
Miniature Ionization with Dual Convection - Operates one built-in Ionization gauge and two Convection gauges | 1 x 10-9 to 1000 Torr 1.3 x 10-9 to 1333 mbar 1.3 x 10-7 Pa to 133 KPa |
Built-in with Display | 3 digits plus 2 digits exponent OLED Units in Torr/mTorr, bar/mbar, Pa / Kpa |
(3) log linear | 3 Relays - SPDT | RS485 Open Collector transistor for degas and filament on/off status | Direct drop-in pin-pin plug-compatible for the GP* Micro-Ion® gauges when used as a stand-alone Ion gauge. |
CVM 211 "Stinger"![]() |
Convection Module | 1 x 10-4 to 1000 Torr 1 x 10-4 to 1333 mbar 1 x 10-2 Pa to 133 KPa |
Built-in with Display | 3-digit LED Units in Torr/mTorr, bar/mbar | (1) linear or (1) non-linear (GP* - S curve) | 1 Relay - SPDT | none | Direct drop-in pin-pin plug-compatible for the GP* Mini-Convectron® Modules. |
| CVM 201 "Super Bee" ![]() |
Convection Module | 1 x 10-4 to 1000 Torr 1 x 10-4 to 1333 mbar 1 x 10-2 Pa to 133 KPa |
Built-in with Display | 4 digit LCD Units in Torr/mTorr, bar/mbar | (1) linear and (1) log linear or non-linear (GP* - S curve) | 2 Relays - SPDT | RS485 + RS232 | Direct drop-in pin-pin plug-compatible for the GP* Mini-Convectron® Modules. |
VGC 301 "Controller"![]() |
Convection Gauge Controller | 1 x 10-4 to 1000 Torr 1 x 10-4 to 1333 mbar 1 x 10-2 Pa to 133 KPa |
Connects to "Worker Bee" or GP* Convectron® | 4 digit LCD Units in Torr/mTorr, bar/mbar | (1) linear and (1) log linear or non-linear (GP* - S curve) | 2 Relays - SPDT | RS485 + RS232 | Connects to InstruTech "Worker Bee" or GP* Convectron® |
CVG 101 "Worker Bee"![]() |
Convection Gauge Tube | 1 x 10-4 to 1000 Torr 1 x 10-4 to 1333 mbar 1 x 10-2 Pa to 133 KPa |
None: Connects to VGC301 Controller or existing GP Controller | N/A | None - Raw Sensor only - GP* ConvectronŽ equivalent | none | none | Direct drop-in pin-pin plug-compatible for the GP* Convectron® gauges. |
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Convectron®,Mini-Convectron® and Micro-Ion® are registered trademarks of Brooks Automation/Granville Phillips. Conflat® and Mini-Conflat® are registered trademarks of Varian Vacuum Cajon VCR and VCO are registered trademarks of Swagelock Company |
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InstruTech Vacuum Instrumentation
Utilizing the most recent advances in vacuum gauge sensor
and controller design.








