
Introduction
This 10 digit feature-packed
Scientific is a fantastic value with a low low price. The memory holds up to 40 steps
to facilitate repeated calculations. Additional features include automatic priority of
operations logic, parentheses nesting up to 7 deep for simplified calculations, a full
complement of 46 mathematical functions, automatic power off feature, a 90-day limited
warranty and comes with a carrying case. This is a great gift item or a treat for yourself.
Features
| Trigonometric (3) | Hyperbolic (3) | Inverse Hyperbolic (3) |
| Square Root | Pi | Factorial |
| DEG, RAD, GRAD | Degr, Min, Sec Conversion (2) | Statistical Functions |
| Inverse Trigonometric (3) | Root | Cube Root |
| Parentheses | EXP | Significant Fig. Selection |
| Program Mem ([X] HLT) | Power | Logarithmic (2) |
| Square | Exponential (2) | Reciprocal |
| F -E | +/- |
| Cat No. | Product Description | Price |
| S-31A | Scientific Calculator | $8.95 |
Introduction
This is an attractive keyboard unit measuring 51 x 68mm (2" x 2.75").
It is 7mm (0.3") tall. The keypress has a
nice feel. The electrical connections are arranged in a 3 x 4 matrix
arrangement. An eighth pin may be used as a shield or remain unconnected. All
numbers plus * and #.
Features
| Price Each | |||
| Cat No. | Product Description | 1 | 5 |
| KIT A1 | Matrix Keyboard Unit | $6.95 | $5.95 |

Personal Computer Surge Arrestor
Surge Arrest provides more features, performance and value than other
surge suppressors. Seven outlet design helps handle your whole system, even
power blocks.
Specifications
UL 1449 (L-N, L-G, N-G): 330V each
Surge Response Time NM: 0ns (instant)
EMI-RFI Filtering: YES
Tracks Sine Wave: YES
Protection Working LED: YES
Site-Wiring-Fault LED: YES
Fail-Safe Mode: YES
Thermal Fuse: YES
Master ON/OFF Switch: YES
Protected Outlets: 7
Line Cord: 6 ft.
Circuit Breaker: 15 amp
Total Capacity: 15 amps
Mounting Key Holes: YES
Size 2" x 4.25" x 10.5"
5.1cm x 10.8cm x 26.7cm
Agency Approvals: UL 1363, UL 1449, TVSS, CSA
For Indoor Use Only
Performance
IEEE Cat. A Ring NM voltage let-through <300V
Energy Rating (joules) 240j
Peak Current NM/CM 6.5/13kA
Lifetime Equipment Protection $2,500
Lifetime Warranty YES
Lab test show Surge Arrest is the most effective protection. SurgeArrest
incorporates filters that track the sine wave and provide instantaneous
response to surges. These oscilloscope photos show the amount of voltage
that passes through to your equipment when subjected to a 6000 volt spike.

Notice how Personal SurgeArrest has the best suppression and clearly
outperforms all same class competitors.

The IEEE 587 Category A Ring Wave test simulates the most common power surges
encountered in home and office environments.

Site-Wiring Fault Indicator
In order to work properly, surge suppressors require a correctly wired
and grounded outlet. SurgeArrest's Site-Wiring Fault Indicator identifies
dangerous wiring problems before you plug in your valuable equipment.

Protection Working Indicator
IIf this indicator ever goes out, it's a sign that the surge suppression
circuitry has been damaged. APC will replace your SurgeArrest under its
lifetime warranty.
Pricing
| CAT NO | DESCRIPTION |
PRICE |
| PER7 | Personal Computer Surge Arrestor |
$29.00 |


©1995 Circuit Specialists, Inc.