Extech 461995 Combination Contact/Laser Photo Tachometer with NIST

Item #:

EXT-461995-NIST

Brand:

Extech

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461995 Combination Contact/Laser Photo Tachometer with NIST by Extech

Unique display where characters reverse direction depending on measurement mode you are in
Large 0.4" (5 digit) LCD display
Microprocessor based with quartz crystal oscillator to maintain high accuracy
Tachometer memory stores last, max and min readings
Provides wide RPM (photo and contact) and Linear Surface Speed (contact) measurements
Accurate to 0.05% with max resolution of 0.1rpm in either photo or contact mode
Complete with tips and wheel for rpm or linear surface speed, four 1.5V AA batteries, reflective tape and carrying case
Narrow beam Laser photo tachometer for accurate non-contact RPM measurements
Measurements from up to 6.5ft from the target for improved safety and accessibility

General Specifications

Circuit	Custom one-chip LSI microprocessor circuit
Time base	Quartz crystal 4.194 MHz
Display	Reversible 5 digit 0. 10mm (4") LCD display
Laser light source	Less than 1mW; Class 2 red laser diode (645nm approx.)
Detecting Distance	50 to 2000 mm (2 to 79") depending on ambient light and RPM
Memory	Last reading and MIN/MAX readings
Operating Conditions	0 °C to 50 °C (32 °F to 122 °F); RH 80% Max
Power Supply	4 x 1.5 V AA batteries
Power Consumption	20mA DC approx.
Weight	300g (10.6oz) including battery)
Size	210 x 67 x 38 mm (8.5 x 2.6 x 1.5")
Accessories	(4) x 1.5V batteries, reflective tape 600mm (24"), surface speed/rpm rotating attachments, and carrying case

Electrical Specifications

$419.99