Mytech Motion Detectors

Updated 5/24/2012
Call or email Craig Maas to order or for more information.
Quantities limited to on hand: first come first serve.
Freight and terms apply.
Hubbell bought out Mytech and the model numbers have changed.

Billing:
Call or email with your request. We will confirm our stock. If it meets your approval we will email a Paypal generated invoice, which you can pay with your credit card. We ship upon payment confirmation from Paypal.

We can also accept Purchase Orders from Schools, Institutions, or commercial firms. Call first for approval.

Qty	Mytech	Hubble	Descriptions	Grainger	Our Price
1	DT2000	ATD2000C	Ultrasonic & Infrared Occupancy Sensor, 2000 sq.ft. coverage 24 volt	241.75	115.00
4	US2000	ATU2000C	Ultrasonic Occupancy Sensor, 2000 sq.ft. coverage 24 volt	226.75	105.63
1	US1000	ATU1000C	Ultrasonic Occupancy Sensor,1000 sq.ft. coverage 24 volt	199.25	88.00
2	US500	ATU500C	Ultrasonic Occupancy Sensor,500 sq.ft. coverage 24 volt	164.50	48.75
16	MP120	CU300A	Power Pack 120 volt for US and DT Sensors, 20 amp	59.20	24.95
0	MP277	CU300A	Power Pack 277 volt for US and DT Sensors, 20 amp	59.20	24.95

• These are new Mytech units still in the box.
• I may be able to get more Power Packs from another source but the price may be more.
• Powers Packs can be used as Slave Relays
• Grainger.com prices as of 2012

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Spec Sheets

Mytech cut sheets: Omni-DT Sensors
and MP Series Power Packs.

More Info about Omni Sensors: Adaptive Functions, Features, Controls, Ranges, Automatic Timer & Automatic Sensitivity, Indicator, Automatic Status Reporting, Physical Wiring, Options/Accessories, and Specifications.

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General Operation

Occupancy sensors have two tasks: keeping the lights on while the room is occupied and, conversely keeping the lights off when unoccupied.

Ultrasonic (doppler shift) motion detection gives maximum sensitivity yet can be vulnerable to false triggering from air conditioning currents, corridor activity and movement of inanimate objects. infrared motion detection gives immunity to false triggering, but lacks sensitivity at greater distances.

1. Upon room entry sensor is in “high confidence” (miser) mode.
   Infrared/ultrasonic composite must be above a specific threshold to turn lights
   on.
2. Once occupied, sensor enters “high sensitivity mode” the threshold
   automatically lowers and the slightest movement will keep the lights
   on.
3. When unoccupied, lights stay off while air conditioning system cycles
   on and off, and cleaning crews occupy corridors.

Composite Dual Tech Sensing

Using infrared sensing (high error immunity) with ultrasonic (high sensitivity) provides good performance. Conventional dual tech sensors use a simple formula for operation: BOTH for ON, EITHER for KEEP ON. This method requires that both sensors receive fixed-strength signals for ON or a single fixed level signal for KEEP ON.

The OMNI uses a more sophisticated method called a composite signal where the signal strengths are added together to form a composite sum. The advantage of this method is that a week IR signal plus a strong US signal will turn the lights on because the sum is enough. The installer need not worry that the signal level be balanced for reliable lights on.

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Mytech is now the ‘Wiring Devices-Kellems’ division of Hubbell.
The sensors are known as Hubbell Motion Sensor Switches or HMOSS
(See Section D of Hubbell’s current catalog.)