Humboldt Manufacturing - Testing Equipment for Construction Materials

Digital Thermo-Timer, H-3557D

Versatile, 24-hour lab timer for use with ovens, incubators and other environmental chambers. Includes probe with 48" (1,2mm) long cable. Probe may be placed inside oven door for internal chamber temperature monitoring. Monitors and displays temperatures over a 0 to 200°C range at an accuracy of ±2°C. Time and temperature functions may be used separately or simultaneously. Alarm sounds when programmed time or temperature high limits are reached. Display shows remaining time/temperature/high limit setpoints. Magnet permits mounting on side of oven. Uses "AAA" battery, not included.

$44.00 Add to Order

Universal Timer

Portable timer automatically shuts off electrical apparatus at set time up to 60 minutes. Features two receptacles and 3-wire cord and plug. 115V. 60Hz. 10 amps. 1ph. AC.

24-Hour Digital Timer Clock, H-3575A

Electronic digital timer/clock is programmed to alarm for one minute when time is up. Unit counts down or up in seconds. LCD displays hours, minutes and seconds. Memory timer allows preset time to be stored. Unit has magnetic back and can also clip on or stand. Includes one 1.5 volt battery.

$23.00 Add to Order

Universal Lab Timer

Portable electric timer functions as elapsed-time indicator, interval timer and electrical apparatus on-off timer. Features time range of 60 minutes by minutes and seconds, 8-in. dial with two sets of numerals (use inner circle of small numerals as stop clock) and selective automatic buzzer alarm. Has two separate outlet receptacles for automatic switching of external appliances. Toggle switch controls one outlet, which can make or break circuit at “0.” Circuit automatically breaks on second outlet after time interval.

Stopwatch, 1/5 sec. movement, 1 rev = 60 sec.— H-2260

Time-out type stopwatch, used for timing operations and tests Start, stop and restart are activated by depressing the crown. Hands are reset by depressing pin on side of case. Features nickel-chromium case and anti-magnetic shock-resistant 7-jewel movement.

$84.00 Add to Order

Stopwatch, 1/10 sec. movement, 1 rev = 30 sec.—H-2261

Time-out type stopwatch, used for timing operations and tests Start, stop and restart are activated by depressing the crown. Hands are reset by depressing pin on side of case. Features nickel-chromium case and anti-magnetic shock-resistant 7-jewel movement.

$110.00 Add to Order

Bell-Type Timer, H-4294

Economical manual mechanical timer has 60-minute time range. Signals with clear bell tone at end of set time for manual apparatus shut off.

$12.50 Add to Order