
Contact/Non-Contact 
Pocket Laser Tachometer
with Totalizer/Counter/Timer Features
HHT13
U Operating Range 
Up to 7.6 m (25')  
(Class 3R Visible Laser)
U Supports Remote 
Contact Assembly,  
Standard in the Kit
U Accepts Optional 
Remote Sensors
U TTL Pulse Output 
U Auto-Ranging/
Fixed Decimal (User 
Selectable)
U English and Metric 
Rates
U Tripod Mounting 
Bushing
U On-Target and Low-
Battery Indicators
U Rugged Rubberized 
Housing
U NIST-Traceable 
Certificate of 
Calibration Included
The HHT13 is a digital,  
battery-powered, optical pocket 
laser tachometer that operates  
up to 7.6 m (25’) from a reflective 
target using a laser light source.  
The ergonomic design allows safe, 
direct line-of-sight viewing of both 
the target and the display, while 
providing a no-slip rubber surface 
for single- hand operation. The 
HHT13 is a 32-function tachometer/ 
ratemeter, totalizer/counter, and timer 
(stopwatch), which is programmable 
in both English and metric rates.  
Support is built-in for the optional 
remote contact assembly (RCA) 
and the plug-in remote sensors. The 
HHT13 has a TTL-compatible pulse 
output to trigger devices such as 
data collectors and stroboscopes. 
Specifications
Display: 5-digit alphanumeric LCD  
Range: 
 Optical: 5 to 200,000 rpm
 Contact*: 0.5 to 20,000 rpm  
 (Other ranges: inches, feet,  
 yards, miles, cm, m, per hour,  
 minutes, seconds)
Accuracy: 
 Optical: ±0.01% of reading 
 Contact*: ±0.05% of reading (rpm) 
Resolution: 0.001 to 10 rpm 
(speed range dependent) 
Operating Range: 50 mm to 7.6 m  
(2" to 25') 
Memory: Max, min and last 
Power: 2 “AA” 1.5 Vdc 
batteries (included) 
Environmental: 5 to 40°C  
(41 to 104°F), 80% RH up to  
30°C (86°F) 
Dimensions:  
176 x 61 x 41 mm  
(6.9 x 2.4 x 1.6") 
Weight:  
210 g (7 oz)
Extended Warranty
Program
OMEGACARESM extended warranty program is 
available for models shown on this page. Ask 
your sales representative for full details when 
placing an order. OMEGACARE 
labor and equivalent loaners.
SM
SM 
covers parts, 
 To Order visit omega.com/hht13 for Pricing and Details
 Model No.  Description 
 HHT13  Tachometer/timer/totalizer with NIST certificate 
 HHT13-KIT   Tachometer/timer/totalizer with NIST certificate, 
 HHT20-ROS Remote optical sensor with 2.4 m (8') cable, mounting 
 HHT13-CC10  Padded pouch fits tachometers 
 HHT13-RCA RCA includes contact tips (concave and convex) and 
 HHT13-CTE 
 HHT13-LCW Linear contact wheel with 305 mm (12") circumference 
 HHT-RT-5  Reflective tape 1.5 m (5') roll, 12 mm (0.5") wide
* With optional RCA. 
Comes with NIST-traceable certificate of calibration, two 150 x 12 mm (6 x 0.5") strips of 
reflective tape, 2 "AA" batteries and operator’s manual. The HHT13-KIT comes with operator’s 
manual, NIST-traceable certificate of calibration, 2 "AA" batteries, 1.5 m (5') roll of T-5 
reflective tape, an RCA, including concave and convex tips, and a 10 cm (3.9") linear contact 
wheel, all in a latching hardcover carrying case.
Ordering Examples: HHT13, tachometer, HHT-RT-5, spare reflective tape, MA-1214, 
reference book: Statistical Intervals. OCW-3, OMEGACARESM extends standard 1-year 
warranty to a total of 4 years.
RCA, carrying case
bracket and 305 mm (12") of reflective tape
10 cm (3.9") linear contact wheel 
Rubber concave, convex tips and 10 cm (3.9") contact wheel
for use with RCA
Q-49